Helion is a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone. Currently, we are scaling up our latest fusion prototype to make our vision a reality. We’re hiring brilliant scientists, engineers, and builders passionate about developing world-changing technologies.
If that sounds like you, check out our open positions.

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Revolutionizing energy with unlimited, clean fusion power.

<div>About HelionWe are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone. Since Helion's founding in 2013, we have raised over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant. This is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.</div> <h2>What You Will Be Doing:</h2>As a Talent Sourcer reporting to the Talent Acquisition Manager in Everett, WA, you'll use outbound outreach strategies to build a high-quality pipeline of technical talent for Helion's critical roles. You will engage prospects with tailored messages, converting them into candidates who align with Helion's mission. Your success will be measured by the quality of candidates advancing to final interviews, with a focus on securing high-value hires through outbound strategies. This is an onsite role that reports directly to the Talent Acquisition Manager at our Everett, WA office.<h2>You Will:</h2><ul><li>Transform hiring leader requirements into compelling opportunity messages that achieve high response rates from targeted outreach</li><li>Leverage competitive intelligence to identify and engage top technical talent from organizations with relevant expertise</li><li>Apply performance-based interviewing techniques to predict on-the-job success, not just technical qualifications</li><li>Build and maintain a pipeline of qualified candidates for current and future technical roles</li><li>Partner with hiring managers to understand role requirements and ideal candidate profiles</li><li>Track sourcing metrics and optimize outreach strategies based on performance data</li></ul><h2>Required Skills:</h2><ul><li>3+ years of experience finding and engaging individuals not looking for new opportunities</li><li>Demonstrated perseverance in outbound sourcing and candidate engagement</li><li>Experience using total addressable market data to identify and target candidate pools</li><li>Strong written and verbal communication skills for candidate outreach and engagement</li><li>Experience with sourcing tools and platforms to identify and research potential candidates</li><li>Ability to work in a fast-paced environment while maintaining attention to detail</li></ul>#LI-Onsite #LI-BC1<div><div><div>Total Compensation and BenefitsHelion's compensation package includes a competitively benchmarked base salary, meaningful equity grants, and comprehensive benefits. Final compensation is determined through a holistic evaluation of your experience, qualifications, and our commitment to internal equity - ensuring fairness and transparency across our teams. We are committed to fostering a fair and equitable environment in every aspect of our operations, including compensation.This is an exempt salaried role.</div><div>Annual Base Pay</div><div>$130,000—$170,000 USD</div></div></div><div>BenefitsOur total compensation package includes benefits, including but not limited to: •    Medical, Dental, and Vision plans for employees and their families  •    31 Days of PTO (21 vacation days and 10 sick days)  •    10 Paid holidays, plus company-wide winter break  •    Up to 5% employer 401(k) match  •    Short term disability, long term disability, and life insurance  •    Paid parental leave and support (up to 16 weeks)  •    Annual wellness stipend  Helion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know.</div>

Talent Sourcer

<div>About HelionWe are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone. Since Helion's founding in 2013, we have raised over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant. This is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.</div>What You Will Be Doing:You will help bring the most powerful, controlled pulsed-fusion device ever constructed online with the goal of generating electrical power. You will apply translatable experience to solve novel engineering challenges on a fast-moving, multidisciplinary team. You will report to the R&amp;D Technician Supervisor, and this is an onsite role located at our Everett, WA office.You Will:<ul><li style="font-family:helvetica , arial , sans-serif;font-size:12pt;">Collaborate with a versatile team to fabricate, assemble, test, troubleshoot, deploy, operate, maintain, and repair various mechanical, electrical, and electronic assemblies</li><li style="font-family:helvetica , arial , sans-serif;font-size:12pt;">Install, align, and maintain our high voltage pulsed power systems, including ultra-high vacuum (UHV) and fuel systems</li><li style="font-family:helvetica , arial , sans-serif;font-size:12pt;">Fabricate and build unique rapid prototypes, assemblies, and instrumentation boxes. Support revision iterations according to engineering specifications</li><li style="font-family:helvetica , arial , sans-serif;font-size:12pt;">Perform PCB soldering, assembly, rework, and cable soldering to industry standards</li><li style="font-family:helvetica , arial , sans-serif;font-size:12pt;">Help with upgrades, modification, and reconfiguration of test bays to support ongoing test and research projects</li><li style="font-family:helvetica , arial , sans-serif;font-size:12pt;">Work at different heights using scissor lifts, pick lifts, and safety harness within Helion facilities</li><li style="font-family:helvetica , arial , sans-serif;font-size:12pt;">Communicate project activity, status, and issues to technical owners</li><li style="font-family:helvetica , arial , sans-serif;font-size:12pt;">Help create and maintain documentation and participate in redline reviews</li><li style="font-family:helvetica , arial , sans-serif;font-size:12pt;">Develop and maintain new inventory of consumables and parts</li><li style="font-family:helvetica , arial , sans-serif;font-size:12pt;">Perform duties safely and efficiently</li></ul>Required Skills:<ul><li style="font-family:helvetica , arial , sans-serif;font-size:12pt;">5+ years of relevant hands-on experience as an Advanced Electrical or Mechanical Technician, with a focus on rapid prototyping and iteration in a research, fabrication, or test lab environment</li><li style="font-family:helvetica , arial , sans-serif;font-size:12pt;">Must be comfortable working in confined spaces for extended periods and able to lift 20 lbs</li><li style="font-family:helvetica , arial , sans-serif;font-size:12pt;">Demonstrated experience in fabrication, assembly, testing, troubleshooting, deployment, operation, and maintenance of mechanical and electrical scientific equipment</li><li style="font-family:helvetica , arial , sans-serif;font-size:12pt;">Hands-on experience with electric hand tools and basic fabrication tools (e.g., drills, saws, mills, lathes, drill press, sanders)</li><li style="font-family:helvetica , arial , sans-serif;font-size:12pt;">Experienced in PCB assembly, rework, and cable soldering, with a working knowledge of IPC standards. Specialized training certification welcomed</li><li style="font-family:helvetica , arial , sans-serif;font-size:12pt;">Familiarity working with DMMs, oscilloscopes, LCR meters, HV probes, thermocouples, calipers, and other common measurement equipment. Previous knowledge of measurement and diagnostic sensors (e.g., interferometers, spectrometers, fiber collimators, strain gauges, cameras, thermal cameras) welcomed</li><li style="font-family:helvetica , arial , sans-serif;font-size:12pt;">Experience and training in building high voltage, laser, vacuum, or cryogenic systems welcomed</li><li style="font-family:helvetica , arial , sans-serif;font-size:12pt;">Certification and familiarity with Mobile Elevated Work Platform, Fall Protection, Forklift, and Crane operations welcomed</li><li style="font-family:helvetica , arial , sans-serif;font-size:12pt;">Experience reading technical drawings and electrical schematics</li><li style="font-family:helvetica , arial , sans-serif;font-size:12pt;">Support a swing shift schedule (12:00 pm to 8:30 pm) Monday through Friday</li></ul>#LI-Onsite<div><div><div>Total Compensation and BenefitsHelion's compensation package includes a competitively benchmarked base salary, meaningful equity grants, and comprehensive benefits. Final compensation is determined through a holistic evaluation of your experience, qualifications, and our commitment to internal equity - ensuring fairness and transparency across our teams. We are committed to fostering a fair and equitable environment in every aspect of our operations, including compensation.This is a non-exempt hourly role.</div><div>Hourly Pay Rate</div><div>$37—$51 USD</div></div></div><div>BenefitsOur total compensation package includes benefits, including but not limited to: •    Medical, Dental, and Vision plans for employees and their families  •    31 Days of PTO (21 vacation days and 10 sick days)  •    10 Paid holidays, plus company-wide winter break  •    Up to 5% employer 401(k) match  •    Short term disability, long term disability, and life insurance  •    Paid parental leave and support (up to 16 weeks)  •    Annual wellness stipend  Helion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know.</div>

Senior Engineering Technician

<div>About HelionWe are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone. Since Helion's founding in 2013, we have raised over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant. This is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.</div>What You Will Be Doing:We are hiring a Supplier Development Engineer to work with suppliers to make parts for fusion generators. You will solve technical problems, develop our supplier's quality systems, and accelerate Helion's transition from rapid prototyping to mass generator manufacturing, thus delivering on Helion's mission of providing clean electricity to the planet. This role requires an onsite presence and you will report to our Senior Manager of Mechanical Engineering at our Everett, WA office.You Will:<ul><li>Collaborate with design engineers to gain an in-depth knowledge of part, assembly, and sub-system design intent</li><li>Assess suppliers' manufacturing processes and quality systems to source parts, in partnership with procurement team</li><li>Support product ramp from new product introduction through to high-volume manufacturing</li><li>Define supplier technical and quality specifications based on engineering and program requirements</li><li>Implement and monitor the production part approval process (PPAP) with selected suppliers to promote rate production</li><li>Ensure suppliers understand requirements for document submissions (e.g., first article inspection reports, quality documentation)</li><li>Develop and approve process controls for important characteristics</li><li>Recommend technical product improvements to reduce risk and potential defect opportunities</li><li>Analyze supplier quality and delivery metrics to identify trends and systemic performance gaps to improve plans</li><li>Coordinate between suppliers, engineers, buyers, and production to resolve supplier quality issues</li><li>Guide supplier corrective actions associated with escapes or containments identified in production or the supply chain</li><li>Improve the supply chain</li><li>Help build the supplier quality program and team at Helion</li><li>Help develop receiving inspection and quality standards</li></ul>Required Skills:<ul><li>5+ years of engineering, manufacturing, or supply chain experience—including school projects, clubs, or internships—in mechanical or electrical systems</li><li>Bachelor's degree or higher in an engineering discipline, or relevant field</li><li>Experience managing external suppliers</li><li>Knowledge of supplier quality processes (e.g., production part approval process, advanced product quality planning, first article inspection reports)</li><li>Knowledge of statistical techniques and methods (e.g., design of experiments, Six Sigma)</li><li>Experience with quality systems (ISO 9000 / TS)</li><li>Able to travel up to 50% of the time</li></ul>#LI-Onsite #LI-KL1<div><div><div>Total Compensation and BenefitsHelion's compensation package includes a competitively benchmarked base salary, meaningful equity grants, and comprehensive benefits. Final compensation is determined through a holistic evaluation of your experience, qualifications, and our commitment to internal equity - ensuring fairness and transparency across our teams. We are committed to fostering a fair and equitable environment in every aspect of our operations, including compensation.This is an exempt salaried role.</div><div>Annual Base Pay</div><div>$138,000—$182,000 USD</div></div></div><div>BenefitsOur total compensation package includes benefits, including but not limited to: •    Medical, Dental, and Vision plans for employees and their families  •    31 Days of PTO (21 vacation days and 10 sick days)  •    10 Paid holidays, plus company-wide winter break  •    Up to 5% employer 401(k) match  •    Short term disability, long term disability, and life insurance  •    Paid parental leave and support (up to 16 weeks)  •    Annual wellness stipend  Helion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know.</div>

Supplier Development Engineer, Mechanical

<div>About HelionWe are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone. Since Helion's founding in 2013, we have raised over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant. This is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.</div>What You Will Be Doing:We are hiring a Supplier Development Engineer to work with suppliers to make parts for fusion generators. You will solve technical problems, develop our supplier's quality systems, and accelerate Helion's transition from rapid prototyping to mass generator manufacturing, thus delivering on Helion's mission of providing clean electricity to the planet. This role requires an onsite presence and you will report to our Senior Manager of Electrical Engineering at our Everett, WA office.You Will:<ul><li>Collaborate with design engineers to gain an in-depth knowledge of part, assembly, and sub-system design intent</li><li>Assess suppliers' manufacturing processes and quality systems to source parts, in partnership with procurement team</li><li>Support product ramp from new product introduction through to high-volume manufacturing</li><li>Define supplier technical and quality specifications based on engineering and program requirements</li><li>Implement and monitor the production part approval process (PPAP) with selected suppliers to promote rate production</li><li>Ensure suppliers understand requirements for document submissions (e.g., first article inspection reports, quality documentation)</li><li>Develop and approve process controls for important characteristics</li><li>Recommend technical product improvements to reduce risk and potential defect opportunities</li><li>Analyze supplier quality and delivery metrics to identify trends and systemic performance gaps to improve plans</li><li>Coordinate between suppliers, engineers, buyers, and production to resolve supplier quality issues</li><li>Guide supplier corrective actions associated with escapes or containments identified in production or the supply chain</li><li>Improve the supply chain</li><li>Help build the supplier quality program and team at Helion</li><li>Help develop receiving inspection and quality standards</li></ul>Required Skills:<ul><li>3+ years of engineering, manufacturing, or supply chain experience—including school projects, clubs, or internships—in mechanical or electrical systems</li><li>Bachelor's degree or higher in an engineering discipline, or relevant field</li><li>Experience managing external suppliers</li><li>Knowledge of supplier quality processes (e.g., production part approval process, advanced product quality planning, first article inspection reports)</li><li>Knowledge of statistical techniques and methods (e.g., design of experiments, Six Sigma)</li><li>Experience with quality systems (ISO 9000 / TS)</li><li>Able to travel up to 50% of the time</li></ul>#LI-Onsite #LI-KL1<div><div><div>Total Compensation and BenefitsHelion's compensation package includes a competitively benchmarked base salary, meaningful equity grants, and comprehensive benefits. Final compensation is determined through a holistic evaluation of your experience, qualifications, and our commitment to internal equity - ensuring fairness and transparency across our teams. We are committed to fostering a fair and equitable environment in every aspect of our operations, including compensation.This is an exempt salaried role.</div><div>Annual Base Pay</div><div>$138,000—$182,000 USD</div></div></div><div>BenefitsOur total compensation package includes benefits, including but not limited to: •    Medical, Dental, and Vision plans for employees and their families  •    31 Days of PTO (21 vacation days and 10 sick days)  •    10 Paid holidays, plus company-wide winter break  •    Up to 5% employer 401(k) match  •    Short term disability, long term disability, and life insurance  •    Paid parental leave and support (up to 16 weeks)  •    Annual wellness stipend  Helion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know.</div>

Supplier Development Engineer, Electrical

<div>About HelionWe are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone. Since Helion's founding in 2013, we have raised over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant. This is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.</div>What You Will Be Doing:You will develop, optimize, and maintain automated test systems that validate Helion's power electronics, PCBAs, and high-voltage assemblies. Acting as the technical bridge between design engineering and production, you will ensure test systems are robust, repeatable, and safe for hands-on execution by technicians. Your work will directly enable faster iteration, higher first-pass yield (FPY), and the reliable delivery of critical components for Helion's fusion prototypes. This is a hands-on role involving electrical test system development, data acquisition, and process ownership. You will report to the Production Manager and work closely with HV and LV Design Engineers, R&amp;D Engineers, and Test Technicians/Supervisors. This is an onsite role at our Everett, WA office.You Will:<ul><li style="font-family:helvetica , arial , sans-serif;font-size:12pt;">Develop automated and semi-automated test systems for PCBA and high-voltage assemblies, including fixture design, instrumentation selection, and control software integration</li><li style="font-family:helvetica , arial , sans-serif;font-size:12pt;">Work with Contract Manufacturers (CMs) to deploy, validate, and maintain test systems in external facilities</li><li style="font-family:helvetica , arial , sans-serif;font-size:12pt;">Write and maintain test procedures, calibration standards, and test limits in collaboration with design engineers and production leadership</li><li style="font-family:helvetica , arial , sans-serif;font-size:12pt;">Support hands-on setup, wiring, and debugging of test racks, DAQ systems, and electrical interconnects</li><li style="font-family:helvetica , arial , sans-serif;font-size:12pt;">Develop and maintain data acquisition and automation tools using Python or PLC-based systems to increase throughput and reliability</li><li style="font-family:helvetica , arial , sans-serif;font-size:12pt;">Analyze test data to produce FPY and performance reports, proposing threshold adjustments in partnership with design teams to balance yield and quality</li><li style="font-family:helvetica , arial , sans-serif;font-size:12pt;">Collaborate with technicians and test supervisors to train and standardize best practices in test execution and safety</li><li style="font-family:helvetica , arial , sans-serif;font-size:12pt;">Continuously improve the efficiency, scalability, and maintainability of existing test systems across PCBA test equipment and HV test bays</li><li style="font-family:helvetica , arial , sans-serif;font-size:12pt;">Drive cross-functional initiatives that reduce operator requirements and improve test cycle times without compromising safety or rigor</li></ul>Required Skills<ul><li style="font-family:helvetica , arial , sans-serif;font-size:12pt;">Bachelor's degree in Electrical Engineering, Mechatronics, or related technical field</li><li style="font-family:helvetica , arial , sans-serif;font-size:12pt;">5+ years of experience developing and supporting electrical or electronic test systems in R&amp;D or production environments</li><li style="font-family:helvetica , arial , sans-serif;font-size:12pt;">Proficient with standard benchtop instruments such as oscilloscopes, power supplies, DMMs, Eloads, signal generators, and data acquisition equipment</li><li style="font-family:helvetica , arial , sans-serif;font-size:12pt;">Experience developing automated tests using Python or other PLC-based systems</li><li style="font-family:helvetica , arial , sans-serif;font-size:12pt;">Experienced in interpreting electrical schematics, PCB layouts, and wiring diagrams</li><li style="font-family:helvetica , arial , sans-serif;font-size:12pt;">Demonstrated hands-on ability to build, wire, and debug test racks, harnesses, and control systems</li><li style="font-family:helvetica , arial , sans-serif;font-size:12pt;">Understanding of electrical safety principles</li><li style="font-family:helvetica , arial , sans-serif;font-size:12pt;">Strong analytical skills with experience generating and interpreting FPY or process capability reports</li><li style="font-family:helvetica , arial , sans-serif;font-size:12pt;">Proven ability to collaborate across engineering and production teams to deliver robust, scalable solutions</li></ul>#LI-Onsite<div><div><div>Total Compensation and BenefitsHelion's compensation package includes a competitively benchmarked base salary, meaningful equity grants, and comprehensive benefits. Final compensation is determined through a holistic evaluation of your experience, qualifications, and our commitment to internal equity - ensuring fairness and transparency across our teams. We are committed to fostering a fair and equitable environment in every aspect of our operations, including compensation.This is an exempt salaried role.</div><div>Annual Base Pay</div><div>$182,000—$214,000 USD</div></div></div><div>BenefitsOur total compensation package includes benefits, including but not limited to: •    Medical, Dental, and Vision plans for employees and their families  •    31 Days of PTO (21 vacation days and 10 sick days)  •    10 Paid holidays, plus company-wide winter break  •    Up to 5% employer 401(k) match  •    Short term disability, long term disability, and life insurance  •    Paid parental leave and support (up to 16 weeks)  •    Annual wellness stipend  Helion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know.</div>

Senior Test Engineer

<div>About HelionWe are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone. Since Helion's founding in 2013, we have raised over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant. This is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.</div>What You Will Be Doing:We are hiring a Sr. Supplier Development Engineer to work with suppliers to make parts for fusion generators. You will solve technical problems, develop our supplier's quality systems, and accelerate Helion's transition from rapid prototyping to mass generator manufacturing, thus delivering on Helion's mission of providing clean electricity to the planet. This is an onsite role that reports directly to Senior Manager of Electrical Engineering at our Everett, WA office.You Will:<ul><li style="font-family:helvetica , arial , sans-serif;font-size:12pt;">Collaborate with design engineers to gain an in-depth knowledge of part, assembly, and sub-system design intent</li><li style="font-family:helvetica , arial , sans-serif;font-size:12pt;">Assess suppliers' manufacturing processes and quality systems to source parts, in partnership with procurement team</li><li style="font-family:helvetica , arial , sans-serif;font-size:12pt;">Support product ramp from new product introduction through to high-volume manufacturing</li><li style="font-family:helvetica , arial , sans-serif;font-size:12pt;">Define supplier technical and quality specifications based on engineering and program requirements</li><li style="font-family:helvetica , arial , sans-serif;font-size:12pt;">Implement and monitor the production part approval process (PPAP) with selected suppliers to promote rate production</li><li style="font-family:helvetica , arial , sans-serif;font-size:12pt;">Ensure suppliers understand requirements for document submissions (e.g., first article inspection reports, quality documentation)</li><li style="font-family:helvetica , arial , sans-serif;font-size:12pt;">Develop and approve process controls for important characteristics</li><li style="font-family:helvetica , arial , sans-serif;font-size:12pt;">Recommend technical product improvements to reduce risk and potential defect opportunities</li><li style="font-family:helvetica , arial , sans-serif;font-size:12pt;">Analyze supplier quality and delivery metrics to identify trends and systemic performance gaps to improve plans</li><li style="font-family:helvetica , arial , sans-serif;font-size:12pt;">Coordinate between suppliers, engineers, buyers, and production to resolve supplier quality issues</li><li style="font-family:helvetica , arial , sans-serif;font-size:12pt;">Guide supplier corrective actions associated with escapes or containments identified in production or the supply chain</li><li style="font-family:helvetica , arial , sans-serif;font-size:12pt;">Improve the supply chain</li><li style="font-family:helvetica , arial , sans-serif;font-size:12pt;">Help build the supplier quality program and team at Helion</li><li style="font-family:helvetica , arial , sans-serif;font-size:12pt;">Help develop receiving inspection and quality standards</li></ul>Required Skills:<ul><li style="font-family:helvetica , arial , sans-serif;font-size:12pt;">5+ years of engineering, manufacturing, or supply chain experience—including school projects, clubs, or internships—in mechanical or electrical systems</li><li style="font-family:helvetica , arial , sans-serif;font-size:12pt;">Bachelor's degree or higher in an engineering discipline, or relevant field</li><li style="font-family:helvetica , arial , sans-serif;font-size:12pt;">Experience managing external suppliers</li><li style="font-family:helvetica , arial , sans-serif;font-size:12pt;">Knowledge of supplier quality processes (e.g., production part approval process, advanced product quality planning, first article inspection reports)</li><li style="font-family:helvetica , arial , sans-serif;font-size:12pt;">Knowledge of statistical techniques and methods (e.g., design of experiments, Six Sigma)</li><li style="font-family:helvetica , arial , sans-serif;font-size:12pt;">Experience with quality systems (ISO 9000 / TS)</li><li style="font-family:helvetica , arial , sans-serif;font-size:12pt;">Able to travel up to 50% of the time</li></ul>#LI-Onsite #LI-KL1 <div><div><div>Total Compensation and BenefitsHelion's compensation package includes a competitively benchmarked base salary, meaningful equity grants, and comprehensive benefits. Final compensation is determined through a holistic evaluation of your experience, qualifications, and our commitment to internal equity - ensuring fairness and transparency across our teams. We are committed to fostering a fair and equitable environment in every aspect of our operations, including compensation.This is an exempt salaried role.</div><div>Annual Base Pay</div><div>$200,000—$240,000 USD</div></div></div><div>BenefitsOur total compensation package includes benefits, including but not limited to: •    Medical, Dental, and Vision plans for employees and their families  •    31 Days of PTO (21 vacation days and 10 sick days)  •    10 Paid holidays, plus company-wide winter break  •    Up to 5% employer 401(k) match  •    Short term disability, long term disability, and life insurance  •    Paid parental leave and support (up to 16 weeks)  •    Annual wellness stipend  Helion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know.</div>

Senior Supplier Development Engineer, Electrical

<div>About HelionWe are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone. Since Helion's founding in 2013, we have raised over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant. This is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.</div> What you will be doingYou will design, develop, and operate secure, reliable, scalable, and delightfully usable full-stack applications to optimize processes between mechanical and electrical engineering, supply chain, inventory, manufacturing, and finance, integrating with our internal data platform and external systems. This is a high-impact, high-visibility role: together with a cross-functional team owning business critical applications, you will multiply the impact of many other teams across the company. You will report directly to our VP of Engineering at our Everett, WA office.You will:<ul><li style="font-size:12pt;">Design and develop frontends, APIs, workflows, database schemas, and caching layers</li><li style="font-size:12pt;">Be a part-time product manager and UX designer. You need to understand how people and processes interact with the software you build</li><li style="font-size:12pt;">Monitor and continuously improve the performance and reliability of our systems, using best-in-class observability tools</li><li style="font-size:12pt;">Collaborate with other software engineers, data analysts and scientists, other engineering disciplines, non-engineers, leadership, and vendors to understand feature and data requirements and deliver solutions</li><li style="font-size:12pt;">Stay current with emerging technologies while recommending battle-tested right-fit solutions that align with strategic goals</li><li style="font-size:12pt;">Participate in on-call rotations to maintain our SLA with the rest of the company, and prevent issues from stalling 24/7 production schedules</li></ul>Required Skills:<ul><li style="font-size:12pt;">Bachelor’s degree in computer science or a related field</li><li style="font-size:12pt;">8+ years of software engineering experience building full-stack applications</li><li style="font-size:12pt;">Hands-on experience with modern web stacks (e.g., React, Next.js)</li><li style="font-size:12pt;">Expertise in HTML, CSS, TypeScript and a backend language like Go or Python</li><li style="font-size:12pt;">Cloud-native experience in Azure, AWS, and/or Google Cloud, using container orchestration technologies like Docker, Kubernetes, and infrastructure-as-code tools like Terraform</li><li style="font-size:12pt;">Familiar with DevOps best practices, using version control (Git), CI/CD (e.g., Buildkite, GitHub Actions), and monitoring and alerting (e.g., Prometheus, Grafana, Datadog)</li><li style="font-size:12pt;">Familiar with UX design tools like Figma</li></ul>#LI-Onsite #LI-KL1<div><div><div>Total Compensation and BenefitsHelion's compensation package includes a competitively benchmarked base salary, meaningful equity grants, and comprehensive benefits. Final compensation is determined through a holistic evaluation of your experience, qualifications, and our commitment to internal equity - ensuring fairness and transparency across our teams. We are committed to fostering a fair and equitable environment in every aspect of our operations, including compensation.This is an exempt salaried role.</div><div>Annual Base Pay</div><div>$241,000—$255,000 USD</div></div></div><div>BenefitsOur total compensation package includes benefits, including but not limited to: •    Medical, Dental, and Vision plans for employees and their families  •    31 Days of PTO (21 vacation days and 10 sick days)  •    10 Paid holidays, plus company-wide winter break  •    Up to 5% employer 401(k) match  •    Short term disability, long term disability, and life insurance  •    Paid parental leave and support (up to 16 weeks)  •    Annual wellness stipend  Helion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know.</div>

Senior Software Engineer, Full stack

<div>About HelionWe are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone. Since Helion's founding in 2013, we have raised over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant. This is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.</div>What you will be doingYou will design, develop, and operate a secure, scalable, reliable, and efficient platform to facilitate the flow of data between internal and external systems supporting mechanical and electrical engineering, supply chain, inventory, manufacturing, and finance. This is a high-impact, high-visibility role: together with a cross-functional team owning business critical applications, you will multiply the impact of many other teams across the company. You will report directly to our VP of Engineering at our Everett, WA office.You will:<ul><li style="font-size:12pt;font-family:helvetica , arial , sans-serif;">Design and develop large-scale, batch and real-time data pipelines, ELT processes, data warehouses, and data lakes, both on prem and in the cloud</li><li style="font-size:12pt;font-family:helvetica , arial , sans-serif;">Scale our data platform to support operational growth from millions of parts per year to millions per day</li><li style="font-size:12pt;font-family:helvetica , arial , sans-serif;">Monitor and continuously improve the performance and reliability of data connections and their impact on up-and-downstream systems, using best-in-class observability tools</li><li style="font-size:12pt;font-family:helvetica , arial , sans-serif;">Ensure data quality and governance by managing metadata like schemas, lineage, and access control</li><li style="font-size:12pt;font-family:helvetica , arial , sans-serif;">Collaborate with other software engineers, data analysts and scientists, other engineering disciplines, non-engineers, leadership, and vendors to understand data requirements and deliver solutions</li><li style="font-size:12pt;font-family:helvetica , arial , sans-serif;">Stay current with emerging data technologies while recommending battle-tested right-fit solutions that align with strategic goals</li><li style="font-size:12pt;font-family:helvetica , arial , sans-serif;">Participate in on-call rotations to maintain our SLA with the rest of the company, and prevent data issues from stalling 24/7 production schedules</li></ul>Required Skills:<ul><li style="font-size:12pt;font-family:helvetica , arial , sans-serif;">Bachelor’s degree in computer science or a related field</li><li style="font-size:12pt;font-family:helvetica , arial , sans-serif;">8+ years of software and/or data engineering experience building and operating large-scale, distributed data systems</li><li style="font-size:12pt;font-family:helvetica , arial , sans-serif;">Hands-on experience with modern data storage and processing technologies (e.g., Kafka, Postgres, blob storage, Flink, dbt, Iceberg)</li><li style="font-size:12pt;font-family:helvetica , arial , sans-serif;">Expertise in Python and SQL; experience with other languages like Java, Scala, or Go</li><li style="font-size:12pt;font-family:helvetica , arial , sans-serif;">Cloud-native experience in Azure, AWS, and/or Google Cloud, using container orchestration technologies like Docker, Kubernetes, and infrastructure-as-code tools like Terraform</li><li style="font-size:12pt;font-family:helvetica , arial , sans-serif;">Familiar with DevOps best practices, using version control (Git), CI/CD (e.g., Buildkite, GitHub Actions), and monitoring and alerting (e.g., Prometheus, Grafana, Datadog)</li><li style="font-size:12pt;font-family:helvetica , arial , sans-serif;">Experience with AI/ML, including LLMs and MCP servers</li></ul>#LI-Onsite #LI-KL1<div><div><div>Total Compensation and BenefitsHelion's compensation package includes a competitively benchmarked base salary, meaningful equity grants, and comprehensive benefits. Final compensation is determined through a holistic evaluation of your experience, qualifications, and our commitment to internal equity - ensuring fairness and transparency across our teams. We are committed to fostering a fair and equitable environment in every aspect of our operations, including compensation.This is an exempt salaried role.</div><div>Annual Base Pay</div><div>$241,000—$255,000 USD</div></div></div><div>BenefitsOur total compensation package includes benefits, including but not limited to: •    Medical, Dental, and Vision plans for employees and their families  •    31 Days of PTO (21 vacation days and 10 sick days)  •    10 Paid holidays, plus company-wide winter break  •    Up to 5% employer 401(k) match  •    Short term disability, long term disability, and life insurance  •    Paid parental leave and support (up to 16 weeks)  •    Annual wellness stipend  Helion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know.</div>

Senior Software Engineer, Data Platform

<div>About HelionWe are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone. Since Helion's founding in 2013, we have raised over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant. This is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.</div>What You Will Be Doing:You will drive the design and development of cutting-edge semiconductors for high-performance pulsed power systems used in Helion’s fusion generators. You will work in a fast-paced environment to develop, test, and implement high-reliability, high-efficiency switching components, with a strong emphasis on rapid development cycles. You will report directly to our Senior Manager of Electrical Engineering, and this is an onsite role located at our Everett, WA office.You Will:<ul><li style="font-size:12pt;font-family:helvetica , arial , sans-serif;">Spearhead efforts to gather and utilize requirements for switching components and apply them toward design of physical products </li><li style="font-size:12pt;font-family:helvetica , arial , sans-serif;">Drive the design and development of novel pulsed power electronics components and systems, focusing on high-efficiency, high-reliability semiconductor solutions</li><li style="font-size:12pt;font-family:helvetica , arial , sans-serif;">Collaborate with cross-functional teams to ensure integration of electrical, mechanical, and physics-based principles in semiconductor development</li><li style="font-size:12pt;font-family:helvetica , arial , sans-serif;">Lead development cycles, including hands-on prototyping, small-scale testing, and large-scale performance validation</li><li style="font-size:12pt;font-family:helvetica , arial , sans-serif;">Conduct simulations, testing, and analysis to validate designs and iterate quickly using data-backed decision making</li><li style="font-size:12pt;font-family:helvetica , arial , sans-serif;">Stay informed on emerging semiconductor materials, device architectures, and industry trends</li><li style="font-size:12pt;font-family:helvetica , arial , sans-serif;">Document design processes, specifications, test results, and findings for continuous improvement and knowledge sharing</li></ul>Required Skills:<ul><li style="font-size:12pt;font-family:helvetica , arial , sans-serif;line-height:1.4;">Bachelor’s, Master’s, or higher degree in Electrical Engineering, Physics, or a related field</li><li style="font-size:12pt;font-family:helvetica , arial , sans-serif;line-height:1.4;">8+ years of experience in power electronics and high voltage semiconductor design</li><li style="font-size:12pt;font-family:helvetica , arial , sans-serif;line-height:1.4;">Strong foundation in semiconductor physics, power electronics, and circuit design principles</li><li style="font-size:12pt;font-family:helvetica , arial , sans-serif;line-height:1.4;">Proven experience with rapid prototyping and development cycles in a high-tech environment</li><li style="font-size:12pt;font-family:helvetica , arial , sans-serif;line-height:1.4;">Background working with semiconductor fabricators to manufacture semiconductor devices </li><li style="font-size:12pt;font-family:helvetica , arial , sans-serif;line-height:1.4;">Proficiency with simulation tools and test equipment for power electronics</li></ul>#LI-Onsite #LI-KL1<div><div><div>Total Compensation and BenefitsHelion's compensation package includes a competitively benchmarked base salary, meaningful equity grants, and comprehensive benefits. Final compensation is determined through a holistic evaluation of your experience, qualifications, and our commitment to internal equity - ensuring fairness and transparency across our teams. We are committed to fostering a fair and equitable environment in every aspect of our operations, including compensation.This is an exempt salaried role.</div><div>Annual Base Pay</div><div>$235,000—$270,000 USD</div></div></div><div>BenefitsOur total compensation package includes benefits, including but not limited to: •    Medical, Dental, and Vision plans for employees and their families  •    31 Days of PTO (21 vacation days and 10 sick days)  •    10 Paid holidays, plus company-wide winter break  •    Up to 5% employer 401(k) match  •    Short term disability, long term disability, and life insurance  •    Paid parental leave and support (up to 16 weeks)  •    Annual wellness stipend  Helion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know.</div>

Senior Semiconductor Device Engineer

<div>About HelionWe are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone. Since Helion's founding in 2013, we have raised over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant. This is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.</div>What You Will Be Doing:You will own thermo-mechanical hardware designs for Helion's fusion generator. You will solve multidisciplinary engineering problems that are necessary for deploying fusion energy to the world and act as a culture driver on a growing team. You will report directly to our Senior Manager of Mechanical Engineering at our Everett, WA office.You Will:<ul><li style="font-size:12pt;font-family:helvetica , arial , sans-serif;">Own and understand designs related to thermal, fluids, and structural subsystems – and improve their requirements.</li><li style="font-size:12pt;font-family:helvetica , arial , sans-serif;">Learn from historical engineering approaches, design novel hardware, and test your solutions</li><li style="font-size:12pt;font-family:helvetica , arial , sans-serif;">Design fusion hardware within 3D CAD software (e.g. NX)</li><li style="font-size:12pt;font-family:helvetica , arial , sans-serif;">Perform analysis (1D, 2D, 3D) with in-house and out-of-house tools (e.g. ANSYS) and hold design reviews to gather feedback and iterate to a fully functioning system</li><li style="font-size:12pt;font-family:helvetica , arial , sans-serif;">Learn from experts to expand your engineering skillset and domain knowledge</li><li style="font-size:12pt;font-family:helvetica , arial , sans-serif;">Work hands-on alongside experienced technicians to implement your hardware designs</li><li style="font-size:12pt;font-family:helvetica , arial , sans-serif;">Troubleshoot hardware issues as they arise on integrated fusion generators</li></ul>Required Skills:<ul><li style="font-size:12pt;font-family:helvetica , arial , sans-serif;">Bachelor's degree in engineering</li><li style="font-size:12pt;font-family:helvetica , arial , sans-serif;">7+ years of professional experience delivering on full-scope engineering projects (including schedule ownership)</li><li style="font-size:12pt;font-family:helvetica , arial , sans-serif;">Experience applying engineering first-principles and method-based thinking to challenging problems</li><li style="font-size:12pt;font-family:helvetica , arial , sans-serif;">Hands-on exposure to a variety of engineering disciplines (fluids, mechanical, thermal)</li><li style="font-size:12pt;font-family:helvetica , arial , sans-serif;">Advanced experience with CAD software (e.g. NX, Solidworks)</li></ul>#LI-Onsite, #LI-KL1<div><div><div>Total Compensation and BenefitsHelion's compensation package includes a competitively benchmarked base salary, meaningful equity grants, and comprehensive benefits. Final compensation is determined through a holistic evaluation of your experience, qualifications, and our commitment to internal equity - ensuring fairness and transparency across our teams. We are committed to fostering a fair and equitable environment in every aspect of our operations, including compensation.This is an exempt salaried role.</div><div>Annual Base Pay</div><div>$182,000—$214,000 USD</div></div></div><div>BenefitsOur total compensation package includes benefits, including but not limited to: •    Medical, Dental, and Vision plans for employees and their families  •    31 Days of PTO (21 vacation days and 10 sick days)  •    10 Paid holidays, plus company-wide winter break  •    Up to 5% employer 401(k) match  •    Short term disability, long term disability, and life insurance  •    Paid parental leave and support (up to 16 weeks)  •    Annual wellness stipend  Helion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know.</div>

Senior Mechanical Engineer - Thermal

<div>About HelionWe are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone. Since Helion's founding in 2013, we have raised over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant. This is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.</div>What You Will Be Doing:You will own hardware designs for systems related to fluid systems on Helion's fusion generators. You will solve multidisciplinary engineering problems that are necessary for deploying fusion energy to the world and act as a culture driver on a growing team. You will report directly to our Senior Manager of Mechanical Engineering at our Everett, WA office.You Will:<ul><li style="font-size:12pt;font-family:helvetica , arial , sans-serif;">Own and understand designs related to fluids, thermal, and structural subsystems – and improve their requirements.</li><li style="font-size:12pt;font-family:helvetica , arial , sans-serif;">Learn from historical engineering approaches, design novel hardware, and test your solutions</li><li style="font-size:12pt;font-family:helvetica , arial , sans-serif;">Design fusion hardware within 3D CAD software (e.g. NX)</li><li style="font-size:12pt;font-family:helvetica , arial , sans-serif;">Perform analysis with in-house and out-of-house tools (e.g. ANSYS Fluent) and hold design reviews to gather feedback and iterate to a fully functioning system</li><li style="font-size:12pt;font-family:helvetica , arial , sans-serif;">Learn from experts to expand your engineering skillset and domain knowledge</li><li style="font-size:12pt;font-family:helvetica , arial , sans-serif;">Work hands-on alongside experienced technicians to implement your hardware designs</li><li style="font-size:12pt;font-family:helvetica , arial , sans-serif;">Troubleshoot hardware issues as they arise on integrated fusion generators</li></ul>Required Skills:<ul><li style="font-size:12pt;font-family:helvetica , arial , sans-serif;">Bachelor's degree in engineering</li><li style="font-size:12pt;font-family:helvetica , arial , sans-serif;">7+ years of professional experience delivering on full-scope engineering projects (including schedule ownership)</li><li style="font-size:12pt;font-family:helvetica , arial , sans-serif;">Experience applying engineering first-principles and method-based thinking to challenging problems</li><li style="font-size:12pt;font-family:helvetica , arial , sans-serif;">Hands-on exposure to a variety of engineering disciplines (fluids, mechanical, thermal)</li><li style="font-size:12pt;font-family:helvetica , arial , sans-serif;">Advanced experience with CAD software (e.g. NX, Solidworks)</li></ul>#LI-Onsite, #LI-KL1<div><div><div>Total Compensation and BenefitsHelion's compensation package includes a competitively benchmarked base salary, meaningful equity grants, and comprehensive benefits. Final compensation is determined through a holistic evaluation of your experience, qualifications, and our commitment to internal equity - ensuring fairness and transparency across our teams. We are committed to fostering a fair and equitable environment in every aspect of our operations, including compensation.This is an exempt salaried role.</div><div>Annual Base Pay</div><div>$182,000—$214,000 USD</div></div></div><div>BenefitsOur total compensation package includes benefits, including but not limited to: •    Medical, Dental, and Vision plans for employees and their families  •    31 Days of PTO (21 vacation days and 10 sick days)  •    10 Paid holidays, plus company-wide winter break  •    Up to 5% employer 401(k) match  •    Short term disability, long term disability, and life insurance  •    Paid parental leave and support (up to 16 weeks)  •    Annual wellness stipend  Helion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know.</div>

Senior Mechanical Engineer - Fluids

<div>About HelionWe are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone. Since Helion's founding in 2013, we have raised over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant. This is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.</div>What You Will Be Doing:You will own hardware designs for Helion's fusion generator prototypes. You will solve multidisciplinary engineering problems that are necessary for deploying fusion energy to the world and act as a culture driver on a growing team. You will report directly to our Senior Manager of Engineering at our Everett, WA office.You Will:<ul><li>Own and understand subsystem designs such as electromagnetic, structural, fluid, thermal and control systems, and improve their requirements</li><li>Learn from historical engineering approaches, design novel hardware, and test your solutions</li><li>Design fusion hardware within 3D CAD software (e.g. NX, Solidworks)</li><li>Perform analysis with tools like ANSYS and hold design reviews to gather feedback and iterate to a fully functioning system</li><li>Learn from experts to expand your engineering skillset and domain knowledge</li><li>Work hands-on alongside experienced technicians to implement your hardware designs</li><li>Troubleshoot hardware issues as they arise on integrated fusion generators</li></ul>Required Skills:<ul><li>Bachelor's degree in engineering</li><li>8+ years of professional experience delivering on full-scope engineering projects (including schedule ownership)</li><li>Experience applying engineering first-principles and method-based thinking to challenging problems</li><li>Hands-on exposure to a variety of engineering disciplines (mechanical, electrical, fluids)</li><li>Advanced experience with CAD software (e.g. NX, Solidworks)</li><li>Moderate experience with FEA software (e.g. ANSYS, FEMAP)</li><li>Moderate experience with GD&amp;T and generating engineering drawings per ASME Y14.5</li></ul>#LI-Onsite #LI-KL1<div><div><div>Total Compensation and BenefitsHelion's compensation package includes a competitively benchmarked base salary, meaningful equity grants, and comprehensive benefits. Final compensation is determined through a holistic evaluation of your experience, qualifications, and our commitment to internal equity - ensuring fairness and transparency across our teams. We are committed to fostering a fair and equitable environment in every aspect of our operations, including compensation.This is an exempt salaried role.</div><div>Annual Base Pay</div><div>$182,000—$214,000 USD</div></div></div><div>BenefitsOur total compensation package includes benefits, including but not limited to: •    Medical, Dental, and Vision plans for employees and their families  •    31 Days of PTO (21 vacation days and 10 sick days)  •    10 Paid holidays, plus company-wide winter break  •    Up to 5% employer 401(k) match  •    Short term disability, long term disability, and life insurance  •    Paid parental leave and support (up to 16 weeks)  •    Annual wellness stipend  Helion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know.</div>

Senior Mechanical Engineer

<div>About HelionWe are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone. Since Helion's founding in 2013, we have raised over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant. This is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.</div><div style="line-height:1.4;">What You Will Be Doing:</div><div style="line-height:1.4;"> </div><div style="line-height:1.4;"><div>As a Senior Manager of Electrical Engineering, you will lead the development of novel circuit designs and hardware systems for Helion’s fusion devices. Your primary responsibility will be to grow and lead a high-performing electrical engineering team by providing mentorship, modeling technical excellence, and driving execution speed. You will solve complex engineering challenges that directly impact machine performance and help deliver clean, low-cost, reliable electricity to the world. This is an onsite role that reports directly to Senior Manager of Electrical Engineering at our Everett, WA office.</div><div> </div><div>You will:</div><ul><li style="font-family:helvetica , arial , sans-serif;font-size:12pt;">Set the standard for how fast Helion designs and builds electrical systems and ultimately delivers clean, low-cost, and reliable electricity to the world</li><li style="font-family:helvetica , arial , sans-serif;font-size:12pt;">Create a world-class engineering team and continually raise the bar for speed of execution and technical rigor</li><li style="font-family:helvetica , arial , sans-serif;font-size:12pt;">Manage the team’s end-to-end ownership of high-energy power circuits (kVDC, kVAC, kA, MJ)</li><li style="font-family:helvetica , arial , sans-serif;font-size:12pt;">Accelerate Helion’s development of custom grid tie-in hardware and/or implementation of highly efficient off-the-shelf components</li><li style="font-family:helvetica , arial , sans-serif;font-size:12pt;">Collaborate with cross-functional teams to improve generator performance and reliability</li><li style="font-family:helvetica , arial , sans-serif;font-size:12pt;">Develop and maintain a roadmap to mass-production, optimizing for scalability and cost</li></ul><div>Required skills:</div><ul><li style="font-family:helvetica , arial , sans-serif;font-size:12pt;">Bachelor’s degree in Engineering or a related discipline</li><li style="font-family:helvetica , arial , sans-serif;font-size:12pt;">Minimum of 10+ years of engineering experience and 3+ years of engineering management experience</li><li style="font-family:helvetica , arial , sans-serif;font-size:12pt;">Experience in taking multidisciplinary problems from concept to design, manufacturing, test, and deployment</li><li style="font-family:helvetica , arial , sans-serif;font-size:12pt;">Autonomous ownership of complex engineering projects (including schedule ownership)</li><li style="font-family:helvetica , arial , sans-serif;font-size:12pt;">Exceptional leadership of engineers with a wide range of experiences and backgrounds</li><li style="font-family:helvetica , arial , sans-serif;font-size:12pt;">Hands-on exposure to a variety of electrical disciplines</li><li style="font-family:helvetica , arial , sans-serif;font-size:12pt;">Ability to apply engineering first-principles and analytical rigor to challenging problems</li><li style="font-family:helvetica , arial , sans-serif;font-size:12pt;">Success scaling complex systems while reducing design iteration time with a lean team</li></ul></div><div style="line-height:1.4;">#LI-Onsite #LI-KL1</div><div><div><div>Total Compensation and BenefitsHelion's compensation package includes a competitively benchmarked base salary, meaningful equity grants, and comprehensive benefits. Final compensation is determined through a holistic evaluation of your experience, qualifications, and our commitment to internal equity - ensuring fairness and transparency across our teams. We are committed to fostering a fair and equitable environment in every aspect of our operations, including compensation.This is an exempt salaried role.</div><div>Annual Base Pay</div><div>$230,000—$270,000 USD</div></div></div><div>BenefitsOur total compensation package includes benefits, including but not limited to: •    Medical, Dental, and Vision plans for employees and their families  •    31 Days of PTO (21 vacation days and 10 sick days)  •    10 Paid holidays, plus company-wide winter break  •    Up to 5% employer 401(k) match  •    Short term disability, long term disability, and life insurance  •    Paid parental leave and support (up to 16 weeks)  •    Annual wellness stipend  Helion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know.</div>

Senior Manager, Electrical Engineering

<div>About HelionWe are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone. Since Helion's founding in 2013, we have raised over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant. This is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.</div>What You Will Be Doing:As a Senior Firmware Engineer, you will develop the embedded systems that power the control, diagnostics, and protection layers of our fusion machines. You’ll write and maintain firmware that runs on thousands of distributed embedded devices controlling and monitoring tens of thousands of sensors, actuators, and data channels. This role bridges hardware and software — you’ll work closely with electrical and software engineers to design reliable, scalable, and high-performance control and data acquisition systems. You’ll help define communication protocols, improve time synchronization across embedded networks, and automate hardware bring-up and testing. This position is ideal for an engineer who enjoys working close to the metal, debugging complex systems, and rapidly iterating on real-world hardware to make fusion power a practical reality. This role requires onsite presence, and you will report directly to our Lead Electrical Engineer at our Everett, WA, office.You Will:<ul><li style="font-size:12pt;">Develop, test, and maintain firmware for real-time embedded systems used in machine control and diagnostics.</li><li style="font-size:12pt;">Work closely with hardware and software engineers to translate system requirements into embedded designs.</li><li style="font-size:12pt;">Bring up new boards, sensors, and actuators — debugging with oscilloscopes, logic analyzers, and JTAG interfaces.</li><li style="font-size:12pt;">Implement and maintain low-level communication protocols (UART, SPI, I²C, CAN, EtherCAT, etc.).</li><li style="font-size:12pt;">Design and refine embedded command interfaces, configuration utilities, and automated test frameworks.</li><li style="font-size:12pt;">Optimize performance, reliability, and timing synchronization across distributed embedded systems.</li><li style="font-size:12pt;">Contribute to continuous improvement of embedded toolchains, build systems, and test automation.</li><li style="font-size:12pt;">Rapidly prototype novel control and measurement concepts to support new machine architectures.</li><li style="font-size:12pt;">Collaborate across disciplines to ensure firmware integrates seamlessly with high-level software and data systems.</li></ul>Required Skills:<ul><li style="font-size:12pt;">BS or higher in Electrical Engineering, Computer Engineering, or Computer Science.</li><li style="font-size:12pt;">8+ years of experience developing embedded systems in C, C++, and/or Rust.</li><li style="font-size:12pt;">Experience with real-time MCU development (bare metal or RTOS-based).</li><li style="font-size:12pt;">Strong understanding of digital communication protocols (UART, SPI, I²C).</li><li style="font-size:12pt;">Familiarity with mixed-signal circuit design and debugging using oscilloscopes, DMMs, and logic analyzers.</li><li style="font-size:12pt;">Experience with version control systems (Git).</li><li style="font-size:12pt;">Scripting experience in Python for automation, hardware bring-up, or testing.</li><li style="font-size:12pt;">Solid grasp of embedded systems fundamentals: power, timing, data, and memory budgets.</li><li style="font-size:12pt;">Experience developing and debugging on Linux-based systems.</li></ul>#LI-Onsite #LI-KL1 <div><div><div>Total Compensation and BenefitsHelion's compensation package includes a competitively benchmarked base salary, meaningful equity grants, and comprehensive benefits. Final compensation is determined through a holistic evaluation of your experience, qualifications, and our commitment to internal equity - ensuring fairness and transparency across our teams. We are committed to fostering a fair and equitable environment in every aspect of our operations, including compensation.This is an exempt salaried role.</div><div>Annual Base Pay</div><div>$200,000—$236,000 USD</div></div></div><div>BenefitsOur total compensation package includes benefits, including but not limited to: •    Medical, Dental, and Vision plans for employees and their families  •    31 Days of PTO (21 vacation days and 10 sick days)  •    10 Paid holidays, plus company-wide winter break  •    Up to 5% employer 401(k) match  •    Short term disability, long term disability, and life insurance  •    Paid parental leave and support (up to 16 weeks)  •    Annual wellness stipend  Helion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know.</div>

Senior Firmware Engineer

<div>About HelionWe are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone. Since Helion's founding in 2013, we have raised over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant. This is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.</div>What You Will Be Doing:As a Senior Electrical Systems Engineer, you will be at the center of bringing our next-generation fusion machine hardware to life. You’ll own the integration of electrical subsystems into a cohesive, reliable system, ensuring that power, control, and communication networks work seamlessly together. You’ll design and deliver the electrical harnesses that connect our machines, manage the interfaces between disciplines through clear requirements and ICDs, and work directly with suppliers to bring critical hardware into production. This role blends detailed hands-on engineering with system-level ownership, ideal for engineers who thrive at both detail and system scales. You will report to the Electrical Engineering Lead, and this is an onsite role located at our Everett, WA office.You Will:<ul><li style="font-size:12pt;font-family:helvetica , arial , sans-serif;">Own the integration of electrical components and subsystems into full systems</li><li style="font-size:12pt;font-family:helvetica , arial , sans-serif;">Define, maintain, and enforce system-level requirements and interface control documents (ICDs) across electrical, mechanical, and/or software teams</li><li style="font-size:12pt;font-family:helvetica , arial , sans-serif;">Lead the design, documentation, and validation of electrical harnesses, ensuring manufacturability, reliability, and compliance with standards</li><li style="font-size:12pt;font-family:helvetica , arial , sans-serif;">Collaborate with and manage harness suppliers—delivering build packages, reviewing prototypes, and qualifying production deliveries</li><li style="font-size:12pt;font-family:helvetica , arial , sans-serif;">Work hands-on in the lab during system bring-up, debugging integration issues, and validating end-to-end functionality</li><li style="font-size:12pt;font-family:helvetica , arial , sans-serif;">Partner with cross-functional teams to ensure subsystem designs align with top-level system goals and requirements</li><li style="font-size:12pt;font-family:helvetica , arial , sans-serif;">Drive continuous improvement in integration processes, test strategies, and documentation practices</li></ul>Required Skills:<ul><li style="font-size:12pt;font-family:helvetica , arial , sans-serif;">Bachelor’s or master’s degree in electrical engineering or related field</li><li style="font-size:12pt;font-family:helvetica , arial , sans-serif;">8+ years of experience in electrical system integration, test, or design engineering</li><li style="font-size:12pt;font-family:helvetica , arial , sans-serif;">Strong background in electrical schematics, harness design, and interconnect systems</li><li style="font-size:12pt;font-family:helvetica , arial , sans-serif;">Experience writing, maintaining, and enforcing system-level requirements and ICDs</li><li style="font-size:12pt;font-family:helvetica , arial , sans-serif;">Proficiency with CAD/eCAD tools for harness and schematic design (Altium, NX, etc ).</li><li style="font-size:12pt;font-family:helvetica , arial , sans-serif;">Hands-on experience with system bring-up, troubleshooting, and root-cause analysis using lab instrumentation (oscilloscopes, DMMs, spectrum analyzers, etc.)</li><li style="font-size:12pt;font-family:helvetica , arial , sans-serif;">Proven ability to collaborate across disciplines and communicate clearly in technical and non-technical settings</li><li style="font-size:12pt;font-family:helvetica , arial , sans-serif;">Strong documentation discipline and ability to manage supplier deliverables</li></ul>#LI-Onsite #LI-KL1<div><div><div>Total Compensation and BenefitsHelion's compensation package includes a competitively benchmarked base salary, meaningful equity grants, and comprehensive benefits. Final compensation is determined through a holistic evaluation of your experience, qualifications, and our commitment to internal equity - ensuring fairness and transparency across our teams. We are committed to fostering a fair and equitable environment in every aspect of our operations, including compensation.This is an exempt salaried role.</div><div>Annual Base Pay</div><div>$200,000—$240,000 USD</div></div></div><div>BenefitsOur total compensation package includes benefits, including but not limited to: •    Medical, Dental, and Vision plans for employees and their families  •    31 Days of PTO (21 vacation days and 10 sick days)  •    10 Paid holidays, plus company-wide winter break  •    Up to 5% employer 401(k) match  •    Short term disability, long term disability, and life insurance  •    Paid parental leave and support (up to 16 weeks)  •    Annual wellness stipend  Helion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know.</div>

Senior Electrical Systems Engineer

<div>About HelionWe are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone. Since Helion's founding in 2013, we have raised over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant. This is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.</div>What You Will Be Doing:As a Senior Electrical Simulation Engineer focused on simulation, you will develop and validate detailed circuit and system models that guide design decisions and ensure the safe, stable operation of our fusion systems. You will create plant-level models to assess performance, evaluate subsystem interactions, and verify compliance with applicable standards and regulations. You will collaborate with cross-disciplinary teams to model and simulate the pulsed power devices, circuits, and physics that enable fusion machine operation. By combining hands-on lab work with advanced simulation methods, you'll accelerate our ability to represent complex electrical systems with confidence, ensuring the reliability of the fusion machine at scale. This is an onsite role that reports directly to Lead Electrical Engineer at our Everett, WA office. You Will:<ul><li style="font-family:helvetica , arial , sans-serif;font-size:12pt;">Lead development and validation of electrical simulation models at the circuit and systems levels</li><li style="font-family:helvetica , arial , sans-serif;font-size:12pt;">Integrate electrical models with mechanical, thermal, and controls simulations to evaluate multidisciplinary interactions and optimize overall system performance</li><li style="font-family:helvetica , arial , sans-serif;font-size:12pt;">Develop automation scripts to enable repeatable, automated execution of simulation activities</li><li style="font-family:helvetica , arial , sans-serif;font-size:12pt;">Work with hardware, firmware, and software engineers to support bring-up, integration and root-cause analysis</li><li style="font-family:helvetica , arial , sans-serif;font-size:12pt;">Evaluate and deploy new simulation tools and processes improve model fidelity, efficiency, and scalability</li><li style="font-family:helvetica , arial , sans-serif;font-size:12pt;">Mentor and guide junior engineers in simulation techniques, model validation, and best practices</li></ul>Required Skills:<ul><li style="font-family:helvetica , arial , sans-serif;font-size:12pt;">Bachelor's degree in Electrical Engineering, Electrical Engineering Technology, Computer Engineering, or related field</li><li style="font-family:helvetica , arial , sans-serif;font-size:12pt;">8+ years of experience creating system-level simulations in environments such as Simulink to capture dynamic behavior, fault response and control interactions</li><li style="font-family:helvetica , arial , sans-serif;font-size:12pt;">Experience with controls, power electronics, and energy delivery systems</li><li style="font-family:helvetica , arial , sans-serif;font-size:12pt;">Experience developing and validating circuit-level electrical models using tools such as SPICE, Simetrix/Simplis, PLECS, or PSIM</li><li style="font-family:helvetica , arial , sans-serif;font-size:12pt;">Experience with leading the design and execution of test campaigns to validate and refine simulation models through experimental measurement</li><li style="font-family:helvetica , arial , sans-serif;font-size:12pt;">Experience with Python, MATLAB, or similar scripting languages for automation, data analysis, report generation, and workflow integration</li><li style="font-family:helvetica , arial , sans-serif;font-size:12pt;">Troubleshooting and problem-solving skills with attention to detail in model validation and documentation</li><li style="font-family:helvetica , arial , sans-serif;font-size:12pt;">Collaborate closely with cross-disciplinary engineering teams</li></ul>#LI-Onsite #LI-KL1<div><div><div>Total Compensation and BenefitsHelion's compensation package includes a competitively benchmarked base salary, meaningful equity grants, and comprehensive benefits. Final compensation is determined through a holistic evaluation of your experience, qualifications, and our commitment to internal equity - ensuring fairness and transparency across our teams. We are committed to fostering a fair and equitable environment in every aspect of our operations, including compensation.This is an exempt salaried role.</div><div>Annual Base Pay</div><div>$200,000—$240,000 USD</div></div></div><div>BenefitsOur total compensation package includes benefits, including but not limited to: •    Medical, Dental, and Vision plans for employees and their families  •    31 Days of PTO (21 vacation days and 10 sick days)  •    10 Paid holidays, plus company-wide winter break  •    Up to 5% employer 401(k) match  •    Short term disability, long term disability, and life insurance  •    Paid parental leave and support (up to 16 weeks)  •    Annual wellness stipend  Helion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know.</div>

Senior Electrical Simulation Engineer

<div>About HelionWe are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone. Since Helion's founding in 2013, we have raised over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant. This is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.</div>What You Will Be Doing:You will support the design, prototyping, and scaling of capacitors used for energy storage in Helion’s fusion generators. This role offers the opportunity to collaborate across technical teams to optimize complex electromechanical systems and accelerate Helion’s transition from rapid prototyping to generator mass manufacturing. Your work will directly contribute to delivering clean, reliable, low-cost electricity to the world. You will report to the Manager of Capacitor Design and this is an onsite role located at our Everett, WA office.You Will:<ul><li>Support the design of capacitors from initial requirements through prototyping, testing, and scaling for high-volume manufacturing</li><li>Collaborate across engineering teams to align capacitor design with pulsed power circuit needs and overall generator performance goals</li><li>Prototype and test capacitor systems to improve energy density, reduce cost, minimize electrical losses, and enhance manufacturability</li><li>Perform detailed capacitor design analysis and lead qualification testing for upcoming fusion generator builds</li><li>Troubleshoot and resolve capacitor-related issues during integration and testing phases</li><li>Partner with supply chain, manufacturing engineering, and production teams to scale Helion’s capacitor output from 10 MJ to 100,000 MJ annually</li><li>Incorporate high-throughput manufacturing methods into capacitor designs to enable efficient mass production</li><li>Contribute to long-term design strategies that reduce supply chain risks and integrate emerging capacitor technologies</li></ul>Required Skills:<ul><li>Bachelor’s degree in Engineering</li><li>8+ years of electromechanical design experience, with a strong track record of rapid execution and solving complex problems</li><li>Experience owning full lifecycle development of electromechanical assemblies</li><li>Hands-on engineering experience in rapid prototyping and iterative design environments</li><li>Experience scaling manufacturing throughput and production rate</li><li>Ability to apply physics-based first principles to evaluate and improve design assumptions</li><li>Strong communication skills and demonstrated success collaborating with supply chain and production teams</li><li>Proven ability to influence across engineering functions and deliver high-impact results</li></ul>#LI-Onsite #LI-KL1<div><div><div>Total Compensation and BenefitsHelion's compensation package includes a competitively benchmarked base salary, meaningful equity grants, and comprehensive benefits. Final compensation is determined through a holistic evaluation of your experience, qualifications, and our commitment to internal equity - ensuring fairness and transparency across our teams. We are committed to fostering a fair and equitable environment in every aspect of our operations, including compensation.This is an exempt salaried role.</div><div>Annual Base Pay</div><div>$170,000—$214,000 USD</div></div></div><div>BenefitsOur total compensation package includes benefits, including but not limited to: •    Medical, Dental, and Vision plans for employees and their families  •    31 Days of PTO (21 vacation days and 10 sick days)  •    10 Paid holidays, plus company-wide winter break  •    Up to 5% employer 401(k) match  •    Short term disability, long term disability, and life insurance  •    Paid parental leave and support (up to 16 weeks)  •    Annual wellness stipend  Helion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know.</div>

Senior Design Engineer

<div>About HelionWe are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone. Since Helion's founding in 2013, we have raised over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant. This is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.</div>What You Will Be Doing:We are hiring a Principal Power Electronics Engineer to support the core energy management systems that power Helion’s fusion generators. Your work will focus on high-power electrical systems including energy delivery to pulsed magnetics, energy recovery systems, internal redistribution networks, and grid-tie infrastructure. You will design, commission, and optimize systems that are foundational to delivering clean, low-cost electricity to the world. This is an onsite role that reports directly to Manager of Electrical Engineering at our Everett, WA office.You Will:<ul><li style="font-family:helvetica , arial , sans-serif;font-size:12pt;">Design, test, troubleshoot, and support high-voltage power systems for pulsed magnetic coils</li><li style="font-family:helvetica , arial , sans-serif;font-size:12pt;">Oversee design, procurement, construction, and commissioning of systems delivering &lt;1 ms pulses up to 5 MA and 40 kV</li><li style="font-family:helvetica , arial , sans-serif;font-size:12pt;">Develop system architectures and collaborate with designers on schematics and installation drawings</li><li style="font-family:helvetica , arial , sans-serif;font-size:12pt;">Lead design reviews to validate cost-effective, scalable, and reliable solutions</li><li style="font-family:helvetica , arial , sans-serif;font-size:12pt;">Support commissioning and lifetime operation of generator power systems, identifying paths to optimize future builds</li><li style="font-family:helvetica , arial , sans-serif;font-size:12pt;">Apply rigorous engineering practices, including ownership of cost, schedule, and resource planning for assigned projects</li><li style="font-family:helvetica , arial , sans-serif;font-size:12pt;">Mentor electrical engineers and collaborate with cross-functional teams to build technical capability across Helion</li></ul>Required Skills:<ul><li style="font-family:helvetica , arial , sans-serif;font-size:12pt;">12+ years experience in power electronics, solving complex electrical engineering problems from design to delivery</li><li style="font-family:helvetica , arial , sans-serif;font-size:12pt;">Bachelor’s or Master’s degree in Electrical Engineering, Physics, or a related field</li><li style="font-family:helvetica , arial , sans-serif;font-size:12pt;">Hands-on experience designing, fabricating, installing, and testing electronic systems </li><li style="font-family:helvetica , arial , sans-serif;font-size:12pt;">Strong knowledge of solid-state switching technologies and power components such as IGBTs, MOSFETs, and SCRs</li><li style="font-family:helvetica , arial , sans-serif;font-size:12pt;">Technical depth in engineering principles, codes, and practices with experience coordinating deliverables to meet milestones</li><li style="font-family:helvetica , arial , sans-serif;font-size:12pt;">Advanced troubleshooting skills with standard benchtop tools (oscilloscopes, E-loads, pulse generators, spectrum analyzers) and PCB design software</li><li style="font-family:helvetica , arial , sans-serif;font-size:12pt;">Proficiency with tools such as Microsoft Office, LTSpice, SIMetrix/SIMPLIS, Altium, and MATLAB</li></ul>#LI-Onsite #LI-KL1<div><div><div>Total Compensation and BenefitsHelion's compensation package includes a competitively benchmarked base salary, meaningful equity grants, and comprehensive benefits. Final compensation is determined through a holistic evaluation of your experience, qualifications, and our commitment to internal equity - ensuring fairness and transparency across our teams. We are committed to fostering a fair and equitable environment in every aspect of our operations, including compensation.This is an exempt salaried role.</div><div>Annual Base Pay</div><div>$235,000—$270,000 USD</div></div></div><div>BenefitsOur total compensation package includes benefits, including but not limited to: •    Medical, Dental, and Vision plans for employees and their families  •    31 Days of PTO (21 vacation days and 10 sick days)  •    10 Paid holidays, plus company-wide winter break  •    Up to 5% employer 401(k) match  •    Short term disability, long term disability, and life insurance  •    Paid parental leave and support (up to 16 weeks)  •    Annual wellness stipend  Helion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know.</div>

Principal Power Electronics Engineer

<div>About HelionWe are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone. Since Helion's founding in 2013, we have raised over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant. This is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.</div>What You Will Be Doing:We are hiring a Principal Electrical Engineer to support the core energy management systems that power Helion’s fusion generators. Your work will focus on high-power electrical systems including energy delivery to pulsed magnetics, energy recovery systems, internal redistribution networks, and grid-tie infrastructure. You will design, commission, and optimize systems that are foundational to delivering clean, low-cost electricity to the world. This is an onsite role that reports directly to Senior Manager of Electrical Engineering at our Everett, WA office.You Will:<ul><li style="font-size:12pt;font-family:helvetica , arial , sans-serif;">Design, test, troubleshoot, and support high-voltage power systems for pulsed magnetic coils</li><li style="font-size:12pt;font-family:helvetica , arial , sans-serif;">Oversee design, procurement, construction, and commissioning of systems delivering &lt;1 ms pulses up to 5 MA and 40 kV</li><li style="font-size:12pt;font-family:helvetica , arial , sans-serif;">Develop system architectures and collaborate with designers on schematics and installation drawings</li><li style="font-size:12pt;font-family:helvetica , arial , sans-serif;">Lead design reviews to validate cost-effective, scalable, and reliable solutions</li><li style="font-size:12pt;font-family:helvetica , arial , sans-serif;">Support commissioning and lifetime operation of generator power systems, identifying paths to optimize future builds</li><li style="font-size:12pt;font-family:helvetica , arial , sans-serif;">Apply rigorous engineering practices, including ownership of cost, schedule, and resource planning for assigned projects</li><li style="font-size:12pt;font-family:helvetica , arial , sans-serif;">Mentor electrical engineers and collaborate with cross-functional teams to build technical capability across Helion</li></ul>Required Skills:<ul><li style="font-size:12pt;font-family:helvetica , arial , sans-serif;">12+ years experience in power electronics, solving complex electrical engineering problems from design to delivery</li><li style="font-size:12pt;font-family:helvetica , arial , sans-serif;">Bachelor’s or Master’s degree in Electrical Engineering, Physics, or a related field</li><li style="font-size:12pt;font-family:helvetica , arial , sans-serif;">Hands-on experience designing, fabricating, installing, and testing electronic systems </li><li style="font-size:12pt;font-family:helvetica , arial , sans-serif;">Strong knowledge of solid-state switching technologies and power components such as IGBTs, MOSFETs, and SCRs</li><li style="font-size:12pt;font-family:helvetica , arial , sans-serif;">Technical depth in engineering principles, codes, and practices with experience coordinating deliverables to meet milestones</li><li style="font-size:12pt;font-family:helvetica , arial , sans-serif;">Advanced troubleshooting skills with standard benchtop tools (oscilloscopes, E-loads, pulse generators, spectrum analyzers) and PCB design software</li><li style="font-size:12pt;font-family:helvetica , arial , sans-serif;">Proficiency with tools such as Microsoft Office, LTSpice, SIMetrix/SIMPLIS, Altium, and MATLAB</li></ul>#LI-Onsite #LI-KL1<div><div><div>Total Compensation and BenefitsHelion's compensation package includes a competitively benchmarked base salary, meaningful equity grants, and comprehensive benefits. Final compensation is determined through a holistic evaluation of your experience, qualifications, and our commitment to internal equity - ensuring fairness and transparency across our teams. We are committed to fostering a fair and equitable environment in every aspect of our operations, including compensation.This is an exempt salaried role.</div><div>Annual Base Pay</div><div>$235,000—$270,000 USD</div></div></div><div>BenefitsOur total compensation package includes benefits, including but not limited to: •    Medical, Dental, and Vision plans for employees and their families  •    31 Days of PTO (21 vacation days and 10 sick days)  •    10 Paid holidays, plus company-wide winter break  •    Up to 5% employer 401(k) match  •    Short term disability, long term disability, and life insurance  •    Paid parental leave and support (up to 16 weeks)  •    Annual wellness stipend  Helion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know.</div>

Principal Electrical Engineer

<div>About HelionWe are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone. Since Helion's founding in 2013, we have raised over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). We are now operating Polaris, our next prototype on the path to the world's first fusion power plant. This is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.</div>What You Will Be DoingAs a Principal Capacitor Design Engineer at Helion, you will lead the design, development, and scaling of custom high-voltage, pulsed-power capacitors that are core to Helion’s fusion generators. You will own capacitor architecture from first principles through high-volume manufacturing, driving breakthroughs in energy density, reliability, and cost. You will provide deep technical leadership to engineering, manufacturing, and production teams as Helion transitions from prototype builds to the world’s first fusion power plant. You will provide technical leadership, organize work, set priorities, and advance Helion’s mission to deliver clean power in a reliable and cost-effective manner. This is an onsite role that reports directly to Senior Manager of Mechanical Engineering at our Everett, WA, office.You Will<ul><li style="font-family:helvetica , arial , sans-serif;font-size:12pt;">Lead the full lifecycle of capacitor development—requirements definition, physics-based modeling, internal design, materials selection, prototyping, testing, and scaling into high-throughput manufacturing</li><li style="font-family:helvetica , arial , sans-serif;font-size:12pt;">Drive the development of low-inductance, high-reliability pulsed capacitors capable of &lt;1 ms, multi-megampere operation, while optimizing for energy density, manufacturability, cost, and lifetime performance</li><li style="font-family:helvetica , arial , sans-serif;font-size:12pt;">Define critical material specifications, qualification criteria, manufacturing processes, and high-voltage pulsed-power test methods for Helion’s custom capacitor systems</li><li style="font-family:helvetica , arial , sans-serif;font-size:12pt;">Provide technical leadership and mentorship to engineers, technicians, and assemblers, guiding architecture decisions, test interpretation, and iterative design improvements</li><li style="font-family:helvetica , arial , sans-serif;font-size:12pt;">Lead failure analysis, lifetime modeling, thermal analysis, and root-cause investigations to strengthen capacitor reliability and production consistency</li><li style="font-family:helvetica , arial , sans-serif;font-size:12pt;">Partner closely with pulsed-power electrical engineers to align capacitor design with system-level circuit performance targets</li><li style="font-family:helvetica , arial , sans-serif;font-size:12pt;">Direct the testing, characterization, and evaluation of internally built and supplier-provided capacitors; analyze data and drive continuous improvement with internal teams and external vendors</li><li style="font-family:helvetica , arial , sans-serif;font-size:12pt;">Own long-term capacitor technology strategy, identifying opportunities to reduce risk, introduce advanced materials, and integrate emerging capacitor technologies</li></ul>Required Skills<ul><li style="font-family:helvetica , arial , sans-serif;font-size:12pt;">Bachelor’s or Master’s degree in Engineering or Physics</li><li style="font-family:helvetica , arial , sans-serif;font-size:12pt;">15+ years of deep experience in pulsed-power capacitor design and manufacturing, including internal construction, low-inductance layout, simulation, materials processing, fabrication, high-voltage testing, and lifetime prediction</li><li style="font-family:helvetica , arial , sans-serif;font-size:12pt;">Demonstrated expertise in dielectric physics: electrical/thermal aging, breakdown behavior, complex permittivity, frequency and temperature dependence, and high-field effects</li><li style="font-family:helvetica , arial , sans-serif;font-size:12pt;">Proven ability to lead capacitor design from concept through high-volume production, including scaling throughput and establishing robust manufacturing processes</li><li style="font-family:helvetica , arial , sans-serif;font-size:12pt;">Hands-on experience with rapid prototyping, iterative testing, and high-energy pulsed-power qualification</li><li style="font-family:helvetica , arial , sans-serif;font-size:12pt;">Strong capability in failure analysis, thermal modeling, and performance evaluation under extreme electrical and thermal stress</li><li style="font-family:helvetica , arial , sans-serif;font-size:12pt;">Track record of effective cross-functional collaboration with electrical engineering, manufacturing, supply chain, and production teams</li><li style="font-family:helvetica , arial , sans-serif;font-size:12pt;">Ability to drive technical decision-making, mentor engineers, and set long-term architecture and process standards</li><li style="font-family:helvetica , arial , sans-serif;font-size:12pt;">Strong communication skills and ability to translate complex physical and engineering concepts into actionable design directions</li></ul>#LI-Onsite #LI-KL1<div><div><div>Total Compensation and BenefitsHelion's compensation package includes a competitively benchmarked base salary, meaningful equity grants, and comprehensive benefits. Final compensation is determined through a holistic evaluation of your experience, qualifications, and our commitment to internal equity - ensuring fairness and transparency across our teams. We are committed to fostering a fair and equitable environment in every aspect of our operations, including compensation.This is an exempt salaried role.</div><div>Annual Base Pay</div><div>$214,000—$255,000 USD</div></div></div><div>BenefitsOur total compensation package includes benefits, including but not limited to: •    Medical, Dental, and Vision plans for employees and their families  •    31 Days of PTO (21 vacation days and 10 sick days)  •    10 Paid holidays, plus company-wide winter break  •    Up to 5% employer 401(k) match  •    Short term disability, long term disability, and life insurance  •    Paid parental leave and support (up to 16 weeks)  •    Annual wellness stipend  Helion is an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you need assistance or an accommodation during the interview process, please let us know.</div>

Helion

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