Radiant is a clean energy startup building a nuclear microreactor. A climate-friendly alternative to diesel generators, Radiant's Kaleidos 1MW microreactor will be the world's first portable, zero-emissions power source that works anywhere. We plan to test our development reactor by 2026 and if successful, it will be the first new commercial reactor design to achieve a fueled test in over 50 years. Our microreactor can bring power to remote parts of the world and provide backup power for life-saving applications in hospitals or disaster-relief scenarios.&nbsp;

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Portable, zero-emissions nuclear microreactor for clean, reliable power everywhere.

<div>Radiant is an El-Segundo, CA-based clean energy startup building a nuclear microreactor. A climate-friendly alternative to diesel generators, Radiant's Kaleidos 1MW microreactor will be the world's first portable, zero-emissions power source that works anywhere. We plan to test our development reactor by 2026 and if successful, it will be the first new commercial reactor design to achieve a fueled test in over 50 years. Radiant's goal is to bring one of the world's first factory-constructed microreactors to market. Our microreactor can bring power to remote parts of the world and provide backup power for life-saving applications in hospitals or disaster-relief scenarios. </div>Software Engineer - New GraduateRadiant is seeking a driven Software Engineer – New Grad with a strong computer science background. You will collaborate with mechanical, electrical, and nuclear teams to develop software that keeps simulation and analysis for reactor design, development, and maintenance running smoothly. You will have an opportunity to work in an interdisciplinary environment with a high degree of ownership and drive milestones forward to unlock commercialization of the first mass-produced nuclear reactor.Responsibilities and Duties:<ul><li>Create tooling to support simulation software – internal and from third party vendors.</li><li>Own several internal software products that support mission-critical analysis.</li><li>Lead the development of production software to support data storage and automation of manufactured parts.</li></ul>Required Qualifications and Skills:<ul><li>Bachelor’s degree in computer science, physics, or other technical discipline.</li><li>Familiarity with Python, C++, C#, or similar object-oriented programming languages.</li><li>Familiarity with software development and documentation best-practices, including version control in Git.</li></ul>Desired Qualifications and Skills:<ul><li>Highly self-motivated with strong communication skills.</li><li>Experience writing or contributing to simulation tools.</li><li>Experience testing software and hardware systems.</li><li>Experience with distributed software development and familiarity with common design patterns.</li><li>Interest in physics, hardware and electrical engineering.</li></ul>Additional Requirements: <ul><li>Must be willing to work extended hours and weekends as necessary to achieve company goals. </li><li>Must work 100% onsite at El Segundo HQ. </li></ul><div>Employee Benefits for Eligible Employees:<ul><li>Stock: Substantial incentive stock plan for all full time, salaried employees.</li><li>Medical: 100% up to base silver level plan for employee + 50% dependents, offers up to Platinum plans.</li><li>One Medical: Sponsored memberships for employees and their dependents. </li><li>Vision: 100% top tier plan coverage + 50% for dependents.</li><li>Dental: 100% top tier plan coverage, orthodontia extra, 50% for dependents.</li><li>Voluntary Life, Accident, Hospital, Critical Illness, Commuter and FSA are offered as employee contributed benefits.</li><li>Free snacks and drinks onsite. </li><li>Flexible PTO policy.</li></ul>We are an equal opportunity employer and all qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity or expression, pregnancy, age, national origin, disability status, genetic information, protected veteran status, or any other characteristic protected by law.Unfortunately, we are unable to provide visa sponsorship at this time. This position involves access to technology that is subject to U.S. export controls. Any job offer made will be contingent upon the applicant’s capacity to serve in compliance with U.S. export controls. </div>

Software Engineer - New Graduate

<div>Radiant is an El-Segundo, CA-based clean energy startup building a nuclear microreactor. A climate-friendly alternative to diesel generators, Radiant's Kaleidos 1MW microreactor will be the world's first portable, zero-emissions power source that works anywhere. We plan to test our development reactor by 2026 and if successful, it will be the first new commercial reactor design to achieve a fueled test in over 50 years. Radiant's goal is to bring one of the world's first factory-constructed microreactors to market. Our microreactor can bring power to remote parts of the world and provide backup power for life-saving applications in hospitals or disaster-relief scenarios. </div>IT Help Desk Associate – Part TimeRadiant is seeking a part-time IT Help Desk Associate to provide first line technical support and assistance to employees. This is an excellent opportunity for a college student or new graduate interested in gaining skills across IT, including computer, software, hardware, network and peripheral troubleshooting. The ideal candidate is proactive and eager to learn, can pick up new technologies quickly, and enjoys problem-solving.  You will enable the Radiant team to have the tools and resources to build and test the first new reactor design in over 50 years by 2026.Responsibilities and Duties: <ul><li>Provide first line technical assistance and support to in-person and remote end users resolving computer, software, hardware, network, and peripheral issues.</li><li>Manage support request software system, Jira, to ensure timely and effective issue resolution.</li><li>Maintain IT inventory including workstations and accessories.</li></ul>Required Skills and Qualifications:<ul><li>1+ years in a help desk, IT associate, or similar industry position.</li><li>Basic knowledge of and experience with troubleshooting Windows devices (consumer or enterprise).</li><li>Excellent and effective verbal and written communication.</li><li>Must have great attention to detail in both issue resolution and proactive follow up in process improvement.</li></ul>Desired Skills and Qualifications:<ul><li>Experience with troubleshooting macOS and Linux.</li><li>Desire to go the extra mile and leave no stone unturned when troubleshooting and reaching solutions.</li><li>Eager to continuously learn new technologies with an innate sense of curiosity.</li></ul>Additional Requirements:<ul><li>Must commit to 20-30 hours a week Monday-Friday.</li><li>Must be able to lift and move equipment up to 40 pounds.</li><li>Must be able to work onsite at El Segundo HQ.</li></ul><div>Employee Benefits for Eligible Employees:<ul><li>Stock: Substantial incentive stock plan for all full time, salaried employees.</li><li>Medical: 100% up to base silver level plan for employee + 50% dependents, offers up to Platinum plans.</li><li>One Medical: Sponsored memberships for employees and their dependents. </li><li>Vision: 100% top tier plan coverage + 50% for dependents.</li><li>Dental: 100% top tier plan coverage, orthodontia extra, 50% for dependents.</li><li>Voluntary Life, Accident, Hospital, Critical Illness, Commuter and FSA are offered as employee contributed benefits.</li><li>Free snacks and drinks onsite. </li><li>Flexible PTO policy.</li></ul>We are an equal opportunity employer and all qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity or expression, pregnancy, age, national origin, disability status, genetic information, protected veteran status, or any other characteristic protected by law.Unfortunately, we are unable to provide visa sponsorship at this time. This position involves access to technology that is subject to U.S. export controls. Any job offer made will be contingent upon the applicant’s capacity to serve in compliance with U.S. export controls. </div>

IT Help Desk Associate - Part Time

<div>Radiant is an El-Segundo, CA-based clean energy startup building a nuclear microreactor. A climate-friendly alternative to diesel generators, Radiant's Kaleidos 1MW microreactor will be the world's first portable, zero-emissions power source that works anywhere. We plan to test our development reactor by 2026 and if successful, it will be the first new commercial reactor design to achieve a fueled test in over 50 years. Radiant's goal is to bring one of the world's first factory-constructed microreactors to market. Our microreactor can bring power to remote parts of the world and provide backup power for life-saving applications in hospitals or disaster-relief scenarios. </div>Internship - Fuel Performance Modeling Engineer  Radiant is seeking a highly motivated Fuel Performance Modeling Intern for Summer 2025. Under the software team, you will provide modeling and simulation support to the materials team along with ensuring the seamless integration of software solutions into material research and analysis.  You will develop and refine TRISO fuel performance models using the BISON code for neutron irradiation experiments. You will directly contribute to advancing our nuclear fuel reliability through predicting probabilistic failure mechanisms. You’ll learn from a direct mentor, cross-functional teammates, and have a tangible impact on improving Kaleidos’ fuel performance assessments that will enable Kaleidos’ successful entrance into the market.  Responsibilities and Duties:   <ul><li>Own the fuel performance modeling of the RAFT irradiation experiment. </li><li>Develop BISON TRISO fuel performance models, executing BISON fuel performance models, and post-processing the results to feed a reduced order model of TRISO failure. </li><li>Create and document predictions for observables of the RAFT experiment, including but not limited to prediction of radionuclide release rates as a function of time. </li><li>Assess output uncertainties of the BISON fuel performance model. </li><li>Present a final project review at the end of internship to engineers and leadership.  </li></ul>Required Skills and Qualifications: <ul><li>Currently pursuing BS in nuclear engineering, mechanical engineering, physics, or related discipline. </li><li>At least 1 year of experience in BISON TRISO fuel performance modeling.  </li></ul>Desired Skills and Qualifications: <ul><li>Currently pursuing a M.S./Ph.D. in nuclear engineering, mechanical engineering, physics, or related discipline. </li><li>A high level of independence in solving challenging engineering tasks is preferred.  </li><li>Ability to seek out resources and proactively ask questions to finish projects through completion effectively, accurately, and timely.  </li><li>Genuinely excited for our mission to rapidly deploy nuclear microreactors to remote locations requiring abundant, clean energy. </li><li>Hands on project examples outside of the classroom such as extracurricular projects, clubs, research, lab work or personal projects. </li><li>Prior internship experience helpful but not required. </li><li>Ability to work in a fast-paced startup environment with a proactive and collaborative attitude. </li></ul>Additional Requirements:  <ul><li>Must be able to commit to 10 consecutive weeks in Summer 2025. </li></ul><div>Employee Benefits for Eligible Employees:<ul><li>Stock: Substantial incentive stock plan for all full time, salaried employees.</li><li>Medical: 100% up to base silver level plan for employee + 50% dependents, offers up to Platinum plans.</li><li>One Medical: Sponsored memberships for employees and their dependents. </li><li>Vision: 100% top tier plan coverage + 50% for dependents.</li><li>Dental: 100% top tier plan coverage, orthodontia extra, 50% for dependents.</li><li>Voluntary Life, Accident, Hospital, Critical Illness, Commuter and FSA are offered as employee contributed benefits.</li><li>Free snacks and drinks onsite. </li><li>Flexible PTO policy.</li></ul>We are an equal opportunity employer and all qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity or expression, pregnancy, age, national origin, disability status, genetic information, protected veteran status, or any other characteristic protected by law.Unfortunately, we are unable to provide visa sponsorship at this time. This position involves access to technology that is subject to U.S. export controls. Any job offer made will be contingent upon the applicant’s capacity to serve in compliance with U.S. export controls. </div>

Internship - Fuel Performance Modeling Engineer

<div>Radiant is an El-Segundo, CA-based clean energy startup building a nuclear microreactor. A climate-friendly alternative to diesel generators, Radiant's Kaleidos 1MW microreactor will be the world's first portable, zero-emissions power source that works anywhere. We plan to test our development reactor by 2026 and if successful, it will be the first new commercial reactor design to achieve a fueled test in over 50 years. Radiant's goal is to bring one of the world's first factory-constructed microreactors to market. Our microreactor can bring power to remote parts of the world and provide backup power for life-saving applications in hospitals or disaster-relief scenarios. </div>Fluids Systems Engineer  Radiant is seeking a highly motivated Senior Fluids Systems Engineer to own critical Kaleidos fluid systems from preliminary design through build and production. These systems include the primary loop subsystems and power conversion loop, serving to convert heat from the reactor core into electrical power. You will be responsible for the following: trade studies, component selection, thermal hydraulic analysis, piping design, vendor selection, assembly, and testing. You will have an instrumental impact of fueling the first new commercial reactor design in over 50 years by 2026.   Responsibilities &amp; Duties: <ul><li>Own end-to-end engineering of fluid systems and components, including compressors, valves, pneumatic systems, air jacket, and heat exchangers.  </li><li>Perform complex thermal and fluids analysis to drive design decisions, verify system performance, and ensure structural integrity using first-principle hand calculations and finite element tools.  </li><li>Perform trade studies to optimize system and meet program requirements.   </li><li>Develop and execute manufacturing/assembly instructions and test plans:<ul><li>Create and manage a Bill-Of-Materials (BOM).    </li><li>Find and develop suppliers for all components   </li><li>Own subassembly design, manufacturing, and test schedules.  </li></ul></li><li>Own risk analysis (FMEA) for subsystems.  </li><li>Collect requirements, provide expertise and feedback to engineers in other functional areas via clear, constructive communication.   </li></ul>Required Qualifications &amp; Skills   <ul><li>Bachelor’s degree from an accredited institution in Mechanical, Materials, Aeronautical, Civil or Structural Engineering.   </li><li>Experience with fluid system architecture design.  </li><li>2+ years of experience in designing, building, and testing fluids systems.   </li><li>Proficient knowledge in fluid dynamics and thermodynamics. </li></ul>Desired Qualifications &amp; Skills   <ul><li>Knowledge of thermodynamic power cycles.  </li><li>Prior experience with designing piping system for thermal growth using hand calculations and FEA tools.  </li><li>Experience with process piping design and testing codes, such as ASME B31.3 and ASME PCC-2.  </li><li>Prior experience with fluid system modeling via Matlab/Python.   </li><li>Experienced in design for manufacturability and ramping up hardware build in a production environment.  </li><li>Experienced in designing and operating test stands.   </li><li>Takes extreme ownership of work and a high degree of responsibility.   </li><li>Excellent communication across multidisciplinary teams.   </li><li>Prior nuclear experience in not required for this role.   </li></ul>Additional Requirements:<ul><li>Must be willing to work extended hours and weekends as necessary to achieve company goals.</li><li>Must work 100% onsite at El Segundo HQ.</li></ul><div>Employee Benefits for Eligible Employees:<ul><li>Stock: Substantial incentive stock plan for all full time, salaried employees.</li><li>Medical: 100% up to base silver level plan for employee + 50% dependents, offers up to Platinum plans.</li><li>One Medical: Sponsored memberships for employees and their dependents. </li><li>Vision: 100% top tier plan coverage + 50% for dependents.</li><li>Dental: 100% top tier plan coverage, orthodontia extra, 50% for dependents.</li><li>Voluntary Life, Accident, Hospital, Critical Illness, Commuter and FSA are offered as employee contributed benefits.</li><li>Free snacks and drinks onsite. </li><li>Flexible PTO policy.</li></ul>We are an equal opportunity employer and all qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity or expression, pregnancy, age, national origin, disability status, genetic information, protected veteran status, or any other characteristic protected by law.Unfortunately, we are unable to provide visa sponsorship at this time. This position involves access to technology that is subject to U.S. export controls. Any job offer made will be contingent upon the applicant’s capacity to serve in compliance with U.S. export controls. </div>

Fluids Systems Engineer

<div>Radiant is an El-Segundo, CA-based clean energy startup building a nuclear microreactor. A climate-friendly alternative to diesel generators, Radiant's Kaleidos 1MW microreactor will be the world's first portable, zero-emissions power source that works anywhere. We plan to test our development reactor by 2026 and if successful, it will be the first new commercial reactor design to achieve a fueled test in over 50 years. Radiant's goal is to bring one of the world's first factory-constructed microreactors to market. Our microreactor can bring power to remote parts of the world and provide backup power for life-saving applications in hospitals or disaster-relief scenarios. </div>Structures Engineer Radiant is seeking a highly motivated Structures Engineer to design and develop critical structures within Kaleidos. You will solve unique challenges creating efficient and reliable structures that facilitate fission while surviving extreme temperature environments and meeting volumetric constraints. You will be responsible for the following: trade studies, material selection, structural analysis, assembly, integration, and testing. You will have an instrumental impact of fueling the first new commercial reactor design in over 50 years by 2026.   Responsibilities &amp; Duties  <ul><li>Ownership of critical structures such as in-core, high temperature graphite and metallic systems or mass-efficient transportable shielding systems. </li><li>Conduct trade studies and develop designs to meet program requirements.  </li><li>Perform detailed thermomechanical analysis (static strength, durability/fatigue) to determine structural integrity (margins of safety) using both hand calculations and finite element tools. </li><li>Develop and execute manufacturing/assembly instructions and test plans. <ul><li>Create and manage a Bill-Of-Materials (BOM).  </li><li>Find and develop suppliers for components. </li></ul></li><li>Own subassembly design, manufacturing, and test schedules. </li><li>Own risk analysis (FMEA) for subsystems. </li><li>Collect requirements, provide expertise and feedback to engineers in other functional areas via clear, constructive communication. </li></ul>Required Qualifications &amp; Skills  <ul><li>Bachelor’s degree from an accredited institution in Mechanical, Aeronautical, Civil or Structural Engineering. </li><li>2+ years of experience designing structures. </li><li>2+ years of experience performing stress analysis using both hand calculations and finite element tools (Abaqus, Ansys, or similar). </li></ul>Desired Qualifications &amp; Skills  <ul><li>Experience with design of multi-component assemblies in CAD (NX or similar). </li><li>Experience designing hardware that was manufactured, deployed, and iteratively improved. </li><li>Experience designing hardware to BPVC requirements. </li><li>Experience designing high-temperature hardware where creep must be considered. </li><li>Solid understanding and application of GD&amp;T. </li><li>Proficiency with both “hand calc” analytical methods and higher fidelity finite element-based analysis methods. </li><li>Ability to derive free-body diagrams for systems with which one was not previously familiar. </li><li>Self-motivated with strong organizational, written, and oral communication skills. </li><li>Experience with using text-based software development tools. </li></ul>Additional Requirements:<ul><li>Must be willing to work extended hours and weekends as necessary to achieve company goals.</li><li>Must be able to work 100% onsite at El Segundo HQ.</li></ul><div>Employee Benefits for Eligible Employees:<ul><li>Stock: Substantial incentive stock plan for all full time, salaried employees.</li><li>Medical: 100% up to base silver level plan for employee + 50% dependents, offers up to Platinum plans.</li><li>One Medical: Sponsored memberships for employees and their dependents. </li><li>Vision: 100% top tier plan coverage + 50% for dependents.</li><li>Dental: 100% top tier plan coverage, orthodontia extra, 50% for dependents.</li><li>Voluntary Life, Accident, Hospital, Critical Illness, Commuter and FSA are offered as employee contributed benefits.</li><li>Free snacks and drinks onsite. </li><li>Flexible PTO policy.</li></ul>We are an equal opportunity employer and all qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity or expression, pregnancy, age, national origin, disability status, genetic information, protected veteran status, or any other characteristic protected by law.Unfortunately, we are unable to provide visa sponsorship at this time. This position involves access to technology that is subject to U.S. export controls. Any job offer made will be contingent upon the applicant’s capacity to serve in compliance with U.S. export controls. </div>

Structures Engineer II

<div>Radiant is an El-Segundo, CA-based clean energy startup building a nuclear microreactor. A climate-friendly alternative to diesel generators, Radiant's Kaleidos 1MW microreactor will be the world's first portable, zero-emissions power source that works anywhere. We plan to test our development reactor by 2026 and if successful, it will be the first new commercial reactor design to achieve a fueled test in over 50 years. Radiant's goal is to bring one of the world's first factory-constructed microreactors to market. Our microreactor can bring power to remote parts of the world and provide backup power for life-saving applications in hospitals or disaster-relief scenarios. </div>Software Engineer - Full StackRadiant is seeking a highly driven Software Engineer with a strong physics or mechanical engineering background. You will collaborate with mechanical, electrical, and nuclear teams to simulate physical systems with an appropriate degree of fidelity, write software that can be deployed to production hardware, and improve our simulation and test software stack, including our cutting-edge, custom-built Digital Twin system. You will have an opportunity to work in an interdisciplinary environment with a high degree of ownership and drive milestones forward to unlock commercialization of the first mass-produced nuclear reactor.Responsibilities and Duties:<ul><li>Develop models to simulate reactor physics and other Kaleidos systems.</li><li>Improve representations of reactor components in the digital twin.</li><li>Collaborate across teams to accelerate software in the loop and hardware-in-the-loop testing.</li><li>Own mission-critical internal products and tooling.</li></ul>Required Qualifications and Skills:<ul><li>Bachelor’s degree in engineering, physics, or similar field from an accredited institution</li><li>3+ years of professional experience in Python, C++, C#, or similar object-oriented programming languages.</li><li>Familiarity with software development and documentation best-practices, including version control in Git.</li></ul>Desired Qualifications and Skills:<ul><li>Highly self-motivated with strong communication skills.</li><li>Experience writing or contributing to simulation tools.</li><li>Experience testing software and hardware systems.</li><li>Experience with distributed software development and familiarity with common design patterns.</li><li>Interest in physics, hardware and electrical engineering.</li></ul>Additional Requirements: <ul><li>Must be willing to work extended hours and weekends as necessary to achieve company goals. </li><li>Must work 100% onsite at El Segundo HQ. </li></ul><div>Employee Benefits for Eligible Employees:<ul><li>Stock: Substantial incentive stock plan for all full time, salaried employees.</li><li>Medical: 100% up to base silver level plan for employee + 50% dependents, offers up to Platinum plans.</li><li>One Medical: Sponsored memberships for employees and their dependents. </li><li>Vision: 100% top tier plan coverage + 50% for dependents.</li><li>Dental: 100% top tier plan coverage, orthodontia extra, 50% for dependents.</li><li>Voluntary Life, Accident, Hospital, Critical Illness, Commuter and FSA are offered as employee contributed benefits.</li><li>Free snacks and drinks onsite. </li><li>Flexible PTO policy.</li></ul>We are an equal opportunity employer and all qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity or expression, pregnancy, age, national origin, disability status, genetic information, protected veteran status, or any other characteristic protected by law.Unfortunately, we are unable to provide visa sponsorship at this time. This position involves access to technology that is subject to U.S. export controls. Any job offer made will be contingent upon the applicant’s capacity to serve in compliance with U.S. export controls. </div>

Software Engineer - Full Stack

<div>Radiant is an El-Segundo, CA-based clean energy startup building a nuclear microreactor. A climate-friendly alternative to diesel generators, Radiant's Kaleidos 1MW microreactor will be the world's first portable, zero-emissions power source that works anywhere. We plan to test our development reactor by 2026 and if successful, it will be the first new commercial reactor design to achieve a fueled test in over 50 years. Radiant's goal is to bring one of the world's first factory-constructed microreactors to market. Our microreactor can bring power to remote parts of the world and provide backup power for life-saving applications in hospitals or disaster-relief scenarios. </div>Senior Nuclear Engineer - Kinetics Radiant is seeking a driven Senior Nuclear Engineer with a focus on reactor kinetics to join our team! You will own modeling methods and reactor physics calculations of neutronics parameters such as reactivity, kinetics parameters, and energy deposition distributions used within our cutting-edge custom-made Digital Twin simulation software. You’ll be responsible for assessing conservatism and verifying assumptions within the modeling methods and documenting all results. Because these methods are pivotal in the safety analysis, you will play a key role in the commercialization of the first mass-produced nuclear reactor. Responsibilities and Duties:   <ul><li>Own modeling methods of core neutronics and reactor physics calculations supporting Radiant’s transient safety analyses. </li><li>Perform calculations of energy deposition distributions, reactivity coefficients, kinetics parameters, and control blade worths to input into Digital Twin models. </li><li>Verify assumptions and assess conservatism of neutronics models. </li><li>Document methods for both technical and non-technical audiences. </li><li>Assist in Verification &amp; Validation (V&amp;V) efforts for the Digital Twin. </li><li>Review and support other nuclear analyses across the company in reactor physics, shielding, and radiation detection. </li></ul>Required Skills and Qualifications: <ul><li>Bachelor’s degree in nuclear engineering or a similar field from an accredited institution. </li><li>4+ years of experience with Monte Carlo nuclear engineering software such as OpenMC, MCNP, Serpent, SCALE, etc. </li><li>Experience documenting analysis methods and assumptions. </li><li>Strong programming skills in any language, preferably Python.</li></ul>Desired Skills and Qualifications: <ul><li>Knowledge and experience in reactor kinetics. </li><li>Basic knowledge of thermal hydraulic principles. </li><li>Experience communicating and distilling information with cross-functional teams.  </li><li>Driven, self-motivated, and takes ownership of work end to end. </li></ul>Additional Requirements: <ul><li>Must be willing to work extended hours and weekends as necessary to achieve company goals. </li><li>Must work 100% onsite at El Segundo HQ. </li></ul><div>Employee Benefits for Eligible Employees:<ul><li>Stock: Substantial incentive stock plan for all full time, salaried employees.</li><li>Medical: 100% up to base silver level plan for employee + 50% dependents, offers up to Platinum plans.</li><li>One Medical: Sponsored memberships for employees and their dependents. </li><li>Vision: 100% top tier plan coverage + 50% for dependents.</li><li>Dental: 100% top tier plan coverage, orthodontia extra, 50% for dependents.</li><li>Voluntary Life, Accident, Hospital, Critical Illness, Commuter and FSA are offered as employee contributed benefits.</li><li>Free snacks and drinks onsite. </li><li>Flexible PTO policy.</li></ul>We are an equal opportunity employer and all qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity or expression, pregnancy, age, national origin, disability status, genetic information, protected veteran status, or any other characteristic protected by law.Unfortunately, we are unable to provide visa sponsorship at this time. This position involves access to technology that is subject to U.S. export controls. Any job offer made will be contingent upon the applicant’s capacity to serve in compliance with U.S. export controls. </div>

Senior Nuclear Engineer - Kinetics

<div>Radiant is an El-Segundo, CA-based clean energy startup building a nuclear microreactor. A climate-friendly alternative to diesel generators, Radiant's Kaleidos 1MW microreactor will be the world's first portable, zero-emissions power source that works anywhere. We plan to test our development reactor by 2026 and if successful, it will be the first new commercial reactor design to achieve a fueled test in over 50 years. Radiant's goal is to bring one of the world's first factory-constructed microreactors to market. Our microreactor can bring power to remote parts of the world and provide backup power for life-saving applications in hospitals or disaster-relief scenarios. </div>Associate Systems Administrator Radiant is seeking a motivated, early career Systems Administrator to manage and maintain our Microsoft-based infrastructure including on premise and cloud technologies. The ideal candidate is excited to apply skills and learn as much as possible across IT, from software rollouts and configurations, network and cluster maintenance, and compliance initiatives. You will ensure highly reliant and high performing IT systems to enable engineers to do their best work. This role requires strong communication skills, in-person collaboration, ability to handle high pressure situations with ease, and be proactive in finding opportunities for process improvements, better performance, and automation. You will join a small, high performing IT team that drives Radiant in running groundbreaking nuclear microreactor technology.    Responsibilities and Duties:   <ul><li>Maintaining enterprise software installations in tandem with the Software/Infrastructure teams, both on-prem and in AWS. </li><li>Managing workstation configuration and software rollouts/updates with minimal disruption </li><li>Define and enforce compliance and security policies in tandem with IT leadership. </li><li>Own and improve the employee onboarding process, adding automation and efficiency wherever possible. </li><li>Assist in server, network, and cluster maintenance, as well as monitoring and observability tasks.  </li><li>Engage with engineers to identify their needs and work with IT team to build solutions while staying in line with compliance requirements. </li><li>Manage digital and physical access control systems, ensuring that engineers have access to what they need when they need it. </li><li>Maintenance and improvement of conferencing products and equipment. </li><li>Writing and maintaining both internal and user-facing documentation. </li><li>Write scripts to automate common tasks, such as user and group management.  </li></ul>Required Skills and Qualifications: <ul><li>2+ years in IT systems administration.  </li><li>Experience in managing Microsoft technologies and environment.  </li><li>Experience with Office 365, Microsoft Entra ID (formerly Azure AD), and/or Intune. </li><li>Proficiency in PowerShell or similar scripting language.  </li><li>Excellent and effective verbal and written communication. </li></ul>Desired Skills and Qualifications: <ul><li>Experience with AWS and Azure cloud technologies.  </li><li>Experience with troubleshooting macOS and Linux. </li><li>Desire to go the extra mile and leave no stone unturned when troubleshooting and reaching solutions. </li><li>Eager to continuously learn new technologies with an innate sense of curiosity. </li><li>Must have great attention to detail in both issue resolution and proactive follow up in process improvement. </li></ul>Additional Requirements: <ul><li>Must be willing to work extended hours and weekends as necessary to achieve company goals. </li><li>Must work 100% onsite at El Segundo HQ. </li></ul><div>Employee Benefits for Eligible Employees:<ul><li>Stock: Substantial incentive stock plan for all full time, salaried employees.</li><li>Medical: 100% up to base silver level plan for employee + 50% dependents, offers up to Platinum plans.</li><li>One Medical: Sponsored memberships for employees and their dependents. </li><li>Vision: 100% top tier plan coverage + 50% for dependents.</li><li>Dental: 100% top tier plan coverage, orthodontia extra, 50% for dependents.</li><li>Voluntary Life, Accident, Hospital, Critical Illness, Commuter and FSA are offered as employee contributed benefits.</li><li>Free snacks and drinks onsite. </li><li>Flexible PTO policy.</li></ul>We are an equal opportunity employer and all qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity or expression, pregnancy, age, national origin, disability status, genetic information, protected veteran status, or any other characteristic protected by law.Unfortunately, we are unable to provide visa sponsorship at this time. This position involves access to technology that is subject to U.S. export controls. Any job offer made will be contingent upon the applicant’s capacity to serve in compliance with U.S. export controls. </div>

Associate Systems Administrator

<div>Radiant is an El-Segundo, CA-based clean energy startup building a nuclear microreactor. A climate-friendly alternative to diesel generators, Radiant's Kaleidos 1MW microreactor will be the world's first portable, zero-emissions power source that works anywhere. We plan to test our development reactor by 2026 and if successful, it will be the first new commercial reactor design to achieve a fueled test in over 50 years. Radiant's goal is to bring one of the world's first factory-constructed microreactors to market. Our microreactor can bring power to remote parts of the world and provide backup power for life-saving applications in hospitals or disaster-relief scenarios. </div>Senior Fluids Systems Engineer  Radiant is seeking a highly motivated Senior Fluids Systems Engineer to own critical Kaleidos fluid systems from preliminary design through build and production. These systems include the primary loop subsystems and power conversion loop, serving to convert heat from the reactor core into electrical power. You will be responsible for the following: trade studies, component selection, thermal hydraulic analysis, piping design, vendor selection, assembly, and testing. You will have an instrumental impact of fueling the first new commercial reactor design in over 50 years by 2026.   Responsibilities &amp; Duties: <ul><li>Own end-to-end engineering of fluid systems and components, including compressors, valves, and heat exchangers.  </li><li>Perform complex thermal and fluids analysis to drive design decisions, verify system performance, and ensure structural integrity using first-principle hand calculations and finite element tools.  </li><li>Perform trade studies to optimize system and meet program requirements.   </li><li>Develop and execute manufacturing/assembly instructions and test plans.    </li><li>Create and manage a Bill-Of-Materials (BOM).    </li><li>Find and develop suppliers for all components   </li><li>Own subassembly design, manufacturing, and test schedules.  </li><li>Own risk analysis (FMEA) for subsystems.  </li><li>Collect requirements, provide expertise and feedback to engineers in other functional areas via clear, constructive communication.   </li></ul>Required Qualifications &amp; Skills   <ul><li>Bachelor’s degree from an accredited institution in Mechanical, Materials, Aeronautical, Civil or Structural Engineering.   </li><li>Experience with fluid system architecture design.  </li><li>4+ years of experience in designing, building, and testing fluids systems.   </li><li>Proficient knowledge in fluid dynamics and thermodynamics.  </li><li>Proficient knowledge of heat exchanger design and analysis methods.  </li></ul>Desired Qualifications &amp; Skills   <ul><li>Knowledge of thermodynamic power cycles.  </li><li>Prior experience with designing piping system for thermal growth using hand calculations and FEA tools.  </li><li>Experience with process piping design and testing codes, such as ASME B31.3 and ASME PCC-2.  </li><li>Prior experience with fluid system modeling via Matlab/Python.   </li><li>Experienced in design for manufacturability and ramping up hardware build in a production environment.  </li><li>Experienced in designing and operating test stands.   </li><li>Takes extreme ownership of work and a high degree of responsibility.   </li><li>Excellent communication across multidisciplinary teams.   </li><li>Prior nuclear experience in not required for this role.  </li></ul>Additional Requirements:<ul><li>Must be willing to work extended hours and weekends as necessary to achieve company goals.</li><li>Must work 100% onsite at El Segundo HQ.</li></ul><div>Employee Benefits for Eligible Employees:<ul><li>Stock: Substantial incentive stock plan for all full time, salaried employees.</li><li>Medical: 100% up to base silver level plan for employee + 50% dependents, offers up to Platinum plans.</li><li>One Medical: Sponsored memberships for employees and their dependents. </li><li>Vision: 100% top tier plan coverage + 50% for dependents.</li><li>Dental: 100% top tier plan coverage, orthodontia extra, 50% for dependents.</li><li>Voluntary Life, Accident, Hospital, Critical Illness, Commuter and FSA are offered as employee contributed benefits.</li><li>Free snacks and drinks onsite. </li><li>Flexible PTO policy.</li></ul>We are an equal opportunity employer and all qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity or expression, pregnancy, age, national origin, disability status, genetic information, protected veteran status, or any other characteristic protected by law.Unfortunately, we are unable to provide visa sponsorship at this time. This position involves access to technology that is subject to U.S. export controls. Any job offer made will be contingent upon the applicant’s capacity to serve in compliance with U.S. export controls. </div>

Senior Fluids Systems Engineer

<div>Radiant is an El-Segundo, CA-based clean energy startup building a nuclear microreactor. A climate-friendly alternative to diesel generators, Radiant's Kaleidos 1MW microreactor will be the world's first portable, zero-emissions power source that works anywhere. We plan to test our development reactor by 2026 and if successful, it will be the first new commercial reactor design to achieve a fueled test in over 50 years. Radiant's goal is to bring one of the world's first factory-constructed microreactors to market. Our microreactor can bring power to remote parts of the world and provide backup power for life-saving applications in hospitals or disaster-relief scenarios. </div>Lead Turbomachinery Engineer  Radiant is seeking a highly motivated Lead Turbomachinery Engineer to develop turbomachinery in support of a closed-loop Brayton cycle with a recuperator. You will develop critical hardware at the heart of the supercritical CO2 heat engine while considering for long-term production requirements related to hardware performance, reliability, mass, cost, and manufacturability. The ideal candidate is experienced in building early concept hardware components through production, and are excited about our vision to build Earth’s mass-produced nuclear reactors and provide portable clean power to remote areas globally.  Responsibilities and Duties:  <ul><li>Translate heat engine performance requirements and trade conceptual designs for sCO2 machinery from first article through production. </li><li>Work with the responsible engineers of adjacent systems to globally optimize Kaleidos microreactor’s hardware and operations for levelized cost of electricity (LCOE). </li><li>Own and maintain performance modeling of the heat engine. </li><li>Oversee the build and testing of prototype, first article, and production heat engine hardware. </li></ul>Required Qualifications and Skills: <ul><li>B.S. in Mechanical or Aerospace Engineering from accredited university. </li><li>5+ years of diversified engineering experience in turbomachinery design. </li><li>Strong knowledge of turbomachinery design and build principles. </li><li>Proficiency in fluids modeling of compressible and incompressible flow. </li><li>Structural analysis of rotary machines including waterfall plot analysis. </li><li>Experience translating broad machinery requirements (power, speed, bearing leakage) into a conceptual design, including wheel and shaft design, as well as bearing and alternator selection. </li><li>Demonstrated experience in owning end-to-end hardware development cycle, from concept, part design, manufacturing, through build and testing. </li></ul>Desired Qualifications and Skills:  <ul><li>M.S. in Mechanical or Aerospace Engineering, specialized in Turbomachinery. </li><li>8+ years of experience and PhD with research focused on Turbomachinery design and analysis. </li><li>Recuperator design and dynamics experience. </li><li>Experience with the supercritical CO2 Brayton cycle. </li><li>Experience with gas turbine systems and their operation is a plus. </li><li>Experience optimizing power generation cycles via industry or custom software. </li><li>Familiarity with AC power generation and power electronics. </li></ul>Additional Requirements: <ul><li>Must be willing to work extended hours and weekends as necessary to achieve company goals. </li></ul><div>Employee Benefits for Eligible Employees:<ul><li>Stock: Substantial incentive stock plan for all full time, salaried employees.</li><li>Medical: 100% up to base silver level plan for employee + 50% dependents, offers up to Platinum plans.</li><li>One Medical: Sponsored memberships for employees and their dependents. </li><li>Vision: 100% top tier plan coverage + 50% for dependents.</li><li>Dental: 100% top tier plan coverage, orthodontia extra, 50% for dependents.</li><li>Voluntary Life, Accident, Hospital, Critical Illness, Commuter and FSA are offered as employee contributed benefits.</li><li>Free snacks and drinks onsite. </li><li>Flexible PTO policy.</li></ul>We are an equal opportunity employer and all qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity or expression, pregnancy, age, national origin, disability status, genetic information, protected veteran status, or any other characteristic protected by law.Unfortunately, we are unable to provide visa sponsorship at this time. This position involves access to technology that is subject to U.S. export controls. Any job offer made will be contingent upon the applicant’s capacity to serve in compliance with U.S. export controls. </div>

Lead Turbomachinery Engineer

<div>Radiant is an El-Segundo, CA-based clean energy startup building a nuclear microreactor. A climate-friendly alternative to diesel generators, Radiant's Kaleidos 1MW microreactor will be the world's first portable, zero-emissions power source that works anywhere. We plan to test our development reactor by 2026 and if successful, it will be the first new commercial reactor design to achieve a fueled test in over 50 years. Radiant's goal is to bring one of the world's first factory-constructed microreactors to market. Our microreactor can bring power to remote parts of the world and provide backup power for life-saving applications in hospitals or disaster-relief scenarios. </div>Senior Technical Recruiter  Radiant is seeking a highly driven, experienced Senior Technical Recruiter to own full cycle recruitment and scale a world class team in a startup environment. You will be responsible for the end-to-end process of recruitment – intake meetings, sourcing strategy and execution, interviews, negotiating offers, and closing. You will be a trusted strategic partner to hiring managers on closing strategies, talent trends, and best practices. You will also drive Radiant’s university recruitment program to attract top students. The ideal candidate thrives in fast-paced environments, are skilled in identifying and closing the top 5% of talent in their respective fields, and take extreme ownership over their work. The ideal candidate also has experience supporting a diverse set of skillsets and roles and are is comfortable recruiting both entry level and senior talent across technical and corporate functions. You will have a big impact on Radiant’s mission to build and commercialize the world’s first portable zero-carbon nuclear microreactor.  This role is located 100% onsite in El Segundo, CA.  Responsibilities and Duties:  <ul><li>Manage full cycle recruiting process providing a best-in-class candidate experience. </li><li>Act as trusted partner for hiring managers on hiring strategies, best interview practices, and closing talent.  </li><li>Develop and uphold consistent, structured hiring processes that assesses and attracts top talent. </li><li>Own and drive university recruiting and internship programs that make Radiant the employer brand of choice for students.  </li><li>Drive non-traditional recruitment methods, including organizing and executing networking events, identifying industry experts, etc.  </li><li>Identify and address process improvements in recruitment and talent function, leaning on data to inform decisions.  </li><li>Attend recruiting and networking events on behalf of Radiant.  </li></ul>Required Qualifications and Skills: <ul><li>Bachelor’s degree from accredited university OR 4+ years of professional experience as a technical recruiter.  </li><li>4+ years of full-cycle technical recruiting experience, preferably in-house.  </li></ul>Desired Qualifications and Skills:  <ul><li>Demonstrated success in sourcing passive niche talent skillsets. </li><li>Ability to form deep partnerships and communicate clearly and effectively with hiring managers.</li><li>Ability to work autonomously and proactively; concise and effective communicator with high energy.</li><li>Excellent negotiation abilities and using creative closing strategies.</li><li>Demonstrated expertise in both traditional and non-traditional recruitment methods: cold calling, networking events, targeted sourcing campaigns, etc. </li><li>Understanding of talent, hiring, and industry market trends to inform strategic recruitment.</li><li>Tenacious and leaves no rock unturned; adaptable and flexible to a fast-paced environment with shifting priorities. </li><li>Detail-oriented and highly organized – able to manage 20+ open requisitions with fast turn-around times</li><li>Experience scaling early-stage, 0-1 startup teams and recruitment practice.</li><li>Genuine interest in Kaleidos technology and impact; deep curiosity with ability to learn new technologies quickly.</li></ul> <div>Employee Benefits for Eligible Employees:<ul><li>Stock: Substantial incentive stock plan for all full time, salaried employees.</li><li>Medical: 100% up to base silver level plan for employee + 50% dependents, offers up to Platinum plans.</li><li>One Medical: Sponsored memberships for employees and their dependents. </li><li>Vision: 100% top tier plan coverage + 50% for dependents.</li><li>Dental: 100% top tier plan coverage, orthodontia extra, 50% for dependents.</li><li>Voluntary Life, Accident, Hospital, Critical Illness, Commuter and FSA are offered as employee contributed benefits.</li><li>Free snacks and drinks onsite. </li><li>Flexible PTO policy.</li></ul>We are an equal opportunity employer and all qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity or expression, pregnancy, age, national origin, disability status, genetic information, protected veteran status, or any other characteristic protected by law.Unfortunately, we are unable to provide visa sponsorship at this time. This position involves access to technology that is subject to U.S. export controls. Any job offer made will be contingent upon the applicant’s capacity to serve in compliance with U.S. export controls. </div>

Senior Technical Recruiter

<div>Radiant is an El-Segundo, CA-based clean energy startup building a nuclear microreactor. A climate-friendly alternative to diesel generators, Radiant's Kaleidos 1MW microreactor will be the world's first portable, zero-emissions power source that works anywhere. We plan to test our development reactor by 2026 and if successful, it will be the first new commercial reactor design to achieve a fueled test in over 50 years. Radiant's goal is to bring one of the world's first factory-constructed microreactors to market. Our microreactor can bring power to remote parts of the world and provide backup power for life-saving applications in hospitals or disaster-relief scenarios. </div>Senior Motor Design EngineerRadiant is seeking a talented Senior Motor Design Engineer to design and develop an alternator for the nuclear-driven, high-speed power generator. Responsibilities include but are not limited to the design of active parts, and the structural and thermal analysis of high-speed generators.You will collaborate with engineers cross-functionally and partner closely with the Power Conversion and Electrical Systems team responsible for converting mechanical energy to electrical to be delivered to customers safely and reliably. The successful candidate will own active part design of generators, along with performing analysis, simulation, and component selection. You'll make a big impact in commercializing Earth's first mass-produced nuclear reactors and power remote areas and critical infrastructure with abundant clean energy.Responsibilities and Duties:   <ul><li>Own design, development, and integration of high power alternator and primary loop motor for a nuclear power generator. </li><li>Apply electromagnetic design and testing for a closed-loop Brayton cycle and its electric motor/generator components.</li><li>Create 3D models and 2D fabrication drawings in CAD and NX. </li><li>Own communications with vendors to source all components to build the generator. </li><li>Perform bench testing, dynamic testing, and system testing for all subsystem components and models. </li><li>Perform hands-on assembly, rapid prototyping, and integration of high voltage electric motors and generators. </li></ul>Required Skills and Qualifications: <ul><li>B.S. in Electrical Engineering, or mechanical engineering specializing in power electronics. </li><li>5+ years of design experience designing high-voltage and high-power electric motors and/or generators. </li><li>Fundamental knowledge of electric motors. </li><li>Expert in design of different types of permanent magnet motors in +1kV, +1MW applications with speeds +40krpm. </li></ul>Desired Skills and Qualifications: <ul><li>8+ years of generator design. </li><li>M.S in Electrical Engineering, or Mechanical Engineering specializing in power electronics.</li><li>Knowledge of motor control systems including SVM. </li><li>Deep understanding of Power Electronics and interaction of electronics circuits with electromagnetics components. </li><li>Define and optimize generator requirements and update design to comply with system level limitations and specifications. </li><li>Great team player with one team mentality working with turbomachinery, power electronics, thermal, packaging and software teams.  </li></ul>Additional Requirements:<ul><li>Must be willing to work extended hours and weekends as necessary to achieve company goals.</li><li>Must work 100% onsite at El Segundo HQ.</li></ul> <div>Employee Benefits for Eligible Employees:<ul><li>Stock: Substantial incentive stock plan for all full time, salaried employees.</li><li>Medical: 100% up to base silver level plan for employee + 50% dependents, offers up to Platinum plans.</li><li>One Medical: Sponsored memberships for employees and their dependents. </li><li>Vision: 100% top tier plan coverage + 50% for dependents.</li><li>Dental: 100% top tier plan coverage, orthodontia extra, 50% for dependents.</li><li>Voluntary Life, Accident, Hospital, Critical Illness, Commuter and FSA are offered as employee contributed benefits.</li><li>Free snacks and drinks onsite. </li><li>Flexible PTO policy.</li></ul>We are an equal opportunity employer and all qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity or expression, pregnancy, age, national origin, disability status, genetic information, protected veteran status, or any other characteristic protected by law.Unfortunately, we are unable to provide visa sponsorship at this time. This position involves access to technology that is subject to U.S. export controls. Any job offer made will be contingent upon the applicant’s capacity to serve in compliance with U.S. export controls. </div>

Senior Motor Design Engineer

<div>Radiant is an El-Segundo, CA-based clean energy startup building a nuclear microreactor. A climate-friendly alternative to diesel generators, Radiant's Kaleidos 1MW microreactor will be the world's first portable, zero-emissions power source that works anywhere. We plan to test our development reactor by 2026 and if successful, it will be the first new commercial reactor design to achieve a fueled test in over 50 years. Radiant's goal is to bring one of the world's first factory-constructed microreactors to market. Our microreactor can bring power to remote parts of the world and provide backup power for life-saving applications in hospitals or disaster-relief scenarios. </div>Senior Structures EngineerRadiant is seeking a highly motivated Senior Structures Engineer to design and develop critical structures within Kaleidos. You will solve unique challenges creating efficient and reliable structures that facilitate fission while surviving extreme temperature environments and meeting volumetric constraints. You will be responsible for the following: trade studies, material selection, detailed structural analysis, assembly, integration, and testing. You will have an instrumental impact of fueling the first new commercial reactor design in over 50 years by 2026.  Responsibilities &amp; Duties: <ul><li>Ownership of critical structures such as mass-efficient transportable shielding systems, container system, and high temperature graphite and metallic systems.</li><li>Conduct trade studies and develop designs to meet program requirements. </li><li>Perform detailed thermomechanical analysis (static strength, durability/fatigue) and dynamic analysis (vibration, shock) to determine structural integrity (margins of safety) using both hand calculations and finite element tools.</li><li>Develop and execute manufacturing/assembly instructions and test plans.<ul><li>Create and manage a Bill-Of-Materials (BOM).</li><li>Find and develop suppliers for components.</li></ul></li><li>Own subassembly design, manufacturing, and test schedules.</li><li>Own risk analysis (FMEA) for subsystems.</li><li>Collect requirements, provide expertise and feedback to engineers in other functional areas via clear, constructive communication.</li></ul>Required Qualifications &amp; Skills:<ul><li>Bachelor’s degree from an accredited institution in Mechanical, Aeronautical, Civil or Structural Engineering.</li><li>6+ years of experience designing structures.</li><li>4+ years of experience performing stress analysis using both hand calculations and finite element tools (Abaqus, Ansys, FEMAP, or similar).</li></ul>Desired Qualifications &amp; Skills:<ul><li>Experience with design of multi-component assemblies in CAD (NX or similar).</li><li>Experience designing hardware that was manufactured, deployed, and iteratively improved.</li><li>Experience resolving thermal expansion issues in designs.</li><li>Experience working with interdisciplinary teams.</li><li>Solid understanding and application of GD&amp;T.</li><li>Proficiency with both “hand calc” analytical methods and higher fidelity finite element-based analysis methods.</li><li>Ability to derive free-body diagrams for systems with which one was not previously familiar.</li><li>Self-motivated with strong organizational, written, and oral communication skills.</li><li>Experience with using text-based software development tools.</li></ul>Additional Requirements:<ul><li>Must be willing to work extended hours and weekends as necessary to achieve company goals.</li></ul><div>Employee Benefits for Eligible Employees:<ul><li>Stock: Substantial incentive stock plan for all full time, salaried employees.</li><li>Medical: 100% up to base silver level plan for employee + 50% dependents, offers up to Platinum plans.</li><li>One Medical: Sponsored memberships for employees and their dependents. </li><li>Vision: 100% top tier plan coverage + 50% for dependents.</li><li>Dental: 100% top tier plan coverage, orthodontia extra, 50% for dependents.</li><li>Voluntary Life, Accident, Hospital, Critical Illness, Commuter and FSA are offered as employee contributed benefits.</li><li>Free snacks and drinks onsite. </li><li>Flexible PTO policy.</li></ul>We are an equal opportunity employer and all qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity or expression, pregnancy, age, national origin, disability status, genetic information, protected veteran status, or any other characteristic protected by law.Unfortunately, we are unable to provide visa sponsorship at this time. This position involves access to technology that is subject to U.S. export controls. Any job offer made will be contingent upon the applicant’s capacity to serve in compliance with U.S. export controls. </div>

Senior Structures Engineer

<div>Radiant is an El-Segundo, CA-based clean energy startup building a nuclear microreactor. A climate-friendly alternative to diesel generators, Radiant's Kaleidos 1MW microreactor will be the world's first portable, zero-emissions power source that works anywhere. We plan to test our development reactor by 2026 and if successful, it will be the first new commercial reactor design to achieve a fueled test in over 50 years. Radiant's goal is to bring one of the world's first factory-constructed microreactors to market. Our microreactor can bring power to remote parts of the world and provide backup power for life-saving applications in hospitals or disaster-relief scenarios. </div>Senior Thermal Modeling Engineer (CFD)Radiant is seeking a driven Senior Thermal Modeling Engineer with expertise in CFD and thermal FEA modeling. You will design, develop and implement simulations for the Kaleidos microreactor to ensure high fidelity, reliability, and safety of our systems. You’ll work on cutting edge technical problems for a high temperature gas reactor that inform decisions across reactor systems, cooling systems, shielding, and more. You will have an opportunity to work in an interdisciplinary environment and drive milestones forward to unlock commercialization of the first mass-produced nuclear reactor.Responsibilities and Duties:  <ul><li>Develop and enact thermal analysis plans for Kaleidos.</li><li>Breakdown complex analysis requests asks into manageable simulations.</li><li>Translate high-fidelity CAD into simplified geometry for analysis.</li><li>Develop thermal to structural analysis pipeline.</li><li>Document analysis results into simple and actionable outputs.</li><li>Verify validity of results via simplified methods (hand calculations / spreadsheet calculations)</li></ul>Required Qualifications and Skills: <ul><li>Bachelor’s degree in engineering, physics, or similar field from an accredited institution.  </li><li>4+ years of experience with Star CCM+ or Ansys Fluent. </li><li>Expertise in finite element and computational fluid dynamics modeling methods.</li><li>Knowledge of underlying mathematical principles behind thermal FEA and CFD (finite methods, transport physics, turbulence models, etc.).</li></ul>Desired Qualifications and Skills:  <ul><li>Proficiency with CAD software (Siemens NX).</li><li>Knowledge of nuclear physics principles.</li><li>Experience with radiation heat transport modeling.</li><li>Experience communicating and distilling information with cross-functional teams. </li><li>Driven, self-motivated, and takes ownership of work end to end.</li></ul>Additional Requirements:<ul><li>Must be willing to work extended hours and weekends as necessary to achieve company goals.</li></ul><div>Employee Benefits for Eligible Employees:<ul><li>Stock: Substantial incentive stock plan for all full time, salaried employees.</li><li>Medical: 100% up to base silver level plan for employee + 50% dependents, offers up to Platinum plans.</li><li>One Medical: Sponsored memberships for employees and their dependents. </li><li>Vision: 100% top tier plan coverage + 50% for dependents.</li><li>Dental: 100% top tier plan coverage, orthodontia extra, 50% for dependents.</li><li>Voluntary Life, Accident, Hospital, Critical Illness, Commuter and FSA are offered as employee contributed benefits.</li><li>Free snacks and drinks onsite. </li><li>Flexible PTO policy.</li></ul>We are an equal opportunity employer and all qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity or expression, pregnancy, age, national origin, disability status, genetic information, protected veteran status, or any other characteristic protected by law.Unfortunately, we are unable to provide visa sponsorship at this time. This position involves access to technology that is subject to U.S. export controls. Any job offer made will be contingent upon the applicant’s capacity to serve in compliance with U.S. export controls. </div>

Senior Thermal Modeling Engineer (CFD)

<div>Radiant is an El-Segundo, CA-based clean energy startup building a nuclear microreactor. A climate-friendly alternative to diesel generators, Radiant's Kaleidos 1MW microreactor will be the world's first portable, zero-emissions power source that works anywhere. We plan to test our development reactor by 2026 and if successful, it will be the first new commercial reactor design to achieve a fueled test in over 50 years. Radiant's goal is to bring one of the world's first factory-constructed microreactors to market. Our microreactor can bring power to remote parts of the world and provide backup power for life-saving applications in hospitals or disaster-relief scenarios. </div>Senior Power Systems Engineer Radiant is seeking a Senior Power Systems Engineer to play a pivotal role in the design and development of Kaleidos electrical systems, including power generation, distribution and grounding systems. This role requires extreme ownership of electrical systems design, analysis, simulation, and component selection. You will prepare construction drawings, specifications, and cost estimates. You'll join a dynamic team focusing on the design and development of power conversion and electrical systems converting heat generated from a nuclear reactor to clean, abundant electricity for customers. You'll partner with talented engineers across power electronics, motor design, and integration as well as external vendors, partner organizations, and government agencies. You'll play an instrumental role in building Earth's first mass-produced nuclear reactors. Responsibilities and Duties:   <ul><li>Design next-generation nuclear microreactor power generation systems through performance, cost, reliability, and trade-offs analysis and engineering. </li><li>Perform power systems design on a multi-megawatt nuclear reactor.</li><li>Provide technical leadership to cross-functional team members ensuring successful rollout, testing, and complete validation. </li><li>Provide guidance, knowledge and expertise to team members conducting power system flow and transient stability analysis.</li><li>Conduct factory acceptance tests and on-site commissioning of power generation systems to ensure performance and safety. </li><li>Develop system level schematics, wiring diagrams, and technical documentation for a portable microreactor. </li></ul>Required Skills and Qualifications: <ul><li>B.S. in Electrical Engineering, specialized in power systems. </li><li>5+ years of design experience designing high voltage power electrical equipment, integration, and maintenance. </li><li>Experienced in cable sizing, cable pulling, conduit routing, conductor sizing, grounding principles, protective device selection and coordination. </li><li>Expert in performing following analysis: grounding analysis, isolation, AC and DC arc flash analysis, harmonic analysis, EMI/EMC analysis, and short circuit analysis. </li></ul>Desired Skills and Qualifications: <ul><li>M.S. in Electrical Engineering, specialized in power systems. </li><li>8+ years of gas turbine, wind turbine, micro-turbine, or micro-grid electrical systems design. </li><li>Skilled with micro-grid control, power management, voltage stability, hybrid electric vehicle power distribution, and/or wind power generation. </li><li>Hands on experience with at least one of following software: ETAP, SKM, Siemens PSSE, ASPEN, CAPE, DIgSILENT, Ansys EMC, or PSCAD. </li></ul>Additional Requirements:<ul><li>Must be willing to work extended hours and weekends as necessary to achieve company goals.</li></ul><div>Employee Benefits for Eligible Employees:<ul><li>Stock: Substantial incentive stock plan for all full time, salaried employees.</li><li>Medical: 100% up to base silver level plan for employee + 50% dependents, offers up to Platinum plans.</li><li>One Medical: Sponsored memberships for employees and their dependents. </li><li>Vision: 100% top tier plan coverage + 50% for dependents.</li><li>Dental: 100% top tier plan coverage, orthodontia extra, 50% for dependents.</li><li>Voluntary Life, Accident, Hospital, Critical Illness, Commuter and FSA are offered as employee contributed benefits.</li><li>Free snacks and drinks onsite. </li><li>Flexible PTO policy.</li></ul>We are an equal opportunity employer and all qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity or expression, pregnancy, age, national origin, disability status, genetic information, protected veteran status, or any other characteristic protected by law.Unfortunately, we are unable to provide visa sponsorship at this time. This position involves access to technology that is subject to U.S. export controls. Any job offer made will be contingent upon the applicant’s capacity to serve in compliance with U.S. export controls. </div>

Senior Power Systems Engineer

<div>Radiant is an El-Segundo, CA-based clean energy startup building a nuclear microreactor. A climate-friendly alternative to diesel generators, Radiant's Kaleidos 1MW microreactor will be the world's first portable, zero-emissions power source that works anywhere. We plan to test our development reactor by 2026 and if successful, it will be the first new commercial reactor design to achieve a fueled test in over 50 years. Radiant's goal is to bring one of the world's first factory-constructed microreactors to market. Our microreactor can bring power to remote parts of the world and provide backup power for life-saving applications in hospitals or disaster-relief scenarios. </div>Senior Controls Systems Engineer Radiant is seeking a Senior Control Systems Engineer to own designs from requirements capture through operation. You will own algorithm development, simulation, implementation, and validation of a nuclear microreactor control system, including: reactivity controls, primary loop mass flow control, and alternator speed control as well as multiple reactors on microgrids. The ideal candidate should be comfortable working with regulatory requirements, developing analysis for system-level coupled controls, and performing hardware tests and data review for validation. This role requires collaboration with multi-disciplinary teams responsible for construction of the systems and components involved in the control loops.      Responsibilities &amp; Duties   <ul><li>Responsible Engineer with total ownership over the Kaleidos control systems including generator and supervisory controls.</li><li>Responsible for subsystem controls i.e. alternator shaft speed, reactivity control surfaces, and electrical power conversion.<ul><li>Develops algorithms, software, and analytic models for control systems to derive requirements for components and subsystems.</li><li>Performs prototyping, testing, and validation and verification of implemented control systems.</li></ul></li><li>Documents and supports regulatory review of control systems.</li><li>Develop methods to analyze and test control system performance.</li><li>Write high quality embedded controls application software on ARM processors.</li></ul>Required Qualifications &amp; Skills  <ul><li>5+ years experience designing control systems involving coupled controls for timing critical architectures.</li><li>Deep knowledge of modern motor control algorithms including field-oriented control and PWM techniques.</li><li>Hands-on experience with multilevel inverters.</li><li>Expert in designing the control algorithms, sampling rate selection, bandwidth design and stability analysis.</li><li>Expertise with monte-carlo analysis, uncertainty quantification, system identification, and phase margin estimation.</li><li>Familiarity with field bus networking protocols such as EtherNet/IP, EtherCAT, CANOpen, Ethernet, RS-422/485.</li><li>Bachelor’s or higher degree in physics or an engineering discipline.</li><li>Own implementation of control algorithms for electric motors and inverters in embedded C.</li></ul>Desired Qualifications &amp; Skills  <ul><li>8+ years experience in control systems.</li><li>Direct experience with controls and modeling of exponential systems.</li><li>Experience working with motors, alternators, and power conversion equipment.</li><li>Experience with autonomous systems and fault detection, isolation, and recovery design.</li></ul>Additional Requirements:<ul><li>Must be willing to work extended hours and weekends as necessary to achieve company goals.</li></ul><div>Employee Benefits for Eligible Employees:<ul><li>Stock: Substantial incentive stock plan for all full time, salaried employees.</li><li>Medical: 100% up to base silver level plan for employee + 50% dependents, offers up to Platinum plans.</li><li>One Medical: Sponsored memberships for employees and their dependents. </li><li>Vision: 100% top tier plan coverage + 50% for dependents.</li><li>Dental: 100% top tier plan coverage, orthodontia extra, 50% for dependents.</li><li>Voluntary Life, Accident, Hospital, Critical Illness, Commuter and FSA are offered as employee contributed benefits.</li><li>Free snacks and drinks onsite. </li><li>Flexible PTO policy.</li></ul>We are an equal opportunity employer and all qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity or expression, pregnancy, age, national origin, disability status, genetic information, protected veteran status, or any other characteristic protected by law.Unfortunately, we are unable to provide visa sponsorship at this time. This position involves access to technology that is subject to U.S. export controls. Any job offer made will be contingent upon the applicant’s capacity to serve in compliance with U.S. export controls. </div>

Senior Controls Systems Engineer

<div>Radiant is an El-Segundo, CA-based clean energy startup building a nuclear microreactor. A climate-friendly alternative to diesel generators, Radiant's Kaleidos 1MW microreactor will be the world's first portable, zero-emissions power source that works anywhere. We plan to test our development reactor by 2026 and if successful, it will be the first new commercial reactor design to achieve a fueled test in over 50 years. Radiant's goal is to bring one of the world's first factory-constructed microreactors to market. Our microreactor can bring power to remote parts of the world and provide backup power for life-saving applications in hospitals or disaster-relief scenarios. </div>Mechanical Integration Engineer (Electronics Packaging) Radiant is seeking a Mechanical Integration Engineer to own packaging and integration of turbomachinery and electrical systems from requirements capture through operation lifecycle.This role is crucial for ensuring the nuclear microreactor meets structural and safety requirements while optimizing for cost, efficiency, manufacturability, and serviceabiilty. You'll join a dynamic team focusing on the design and development of power conversion and electrical systems converting heat generated from a nuclear reactor to clean, abundant electricity for customers. This role requires strong communication and collaboration skills to work effectively with various teams within engineering, manufacturing, and validation. You'll play an instrumental role in building Earth's first mass-produced nuclear reactors. Responsibilities and Duties:   <ul><li>Contribute to the strategy and packaging of the Powertrain System to meet structural and safety requirements. </li><li>Apply communication and negotiation skills to facilitate discussions between hardware engineering teams. </li><li>Use attention to detail in GD&amp;T analyses and installation drawings to convey assembly intent. </li><li>Promote the use of CAD methods and standard processes within the Powertrain department. </li><li>Define and complete necessary hardware integration verification activities, including CAE, physical mockups, and hardware testing. </li></ul>Required Skills and Qualifications: <ul><li>BS in Mechanical or Aerospace Engineering.  </li><li>2+ years of experience in integrating, designing, and/or building mechanical and electrical systems. </li><li>Strong capabilities in 3DX/CATIA/NX/Solidworks for the development of mechanical designs and prototypes. </li><li>Experience in integration and packaging of electrical power plants, eVTOL, EVs and complicated high voltage electrical systems. </li></ul>Desired Skills and Qualifications: <ul><li>Demonstrated strong mechanical engineering fundamentals across a broad range of topics. </li><li>Design packaging of electrical systems into an aircraft, EV, spacecraft, gas turbine, microturbine, Wind Turbine or nuclear reactor. </li><li>Experience drafting, piping, and updating instrumentation schematics. </li><li>Experience creating drawings like P&amp;IDs, ICDs, and GADs for electrical systems, cooling loops, seal gas systems, and related rotating equipment. </li></ul>Additional Requirements:<ul><li>Must be willing to work extended hours and weekends as necessary to achieve company goals.</li></ul><div>Employee Benefits for Eligible Employees:<ul><li>Stock: Substantial incentive stock plan for all full time, salaried employees.</li><li>Medical: 100% up to base silver level plan for employee + 50% dependents, offers up to Platinum plans.</li><li>One Medical: Sponsored memberships for employees and their dependents. </li><li>Vision: 100% top tier plan coverage + 50% for dependents.</li><li>Dental: 100% top tier plan coverage, orthodontia extra, 50% for dependents.</li><li>Voluntary Life, Accident, Hospital, Critical Illness, Commuter and FSA are offered as employee contributed benefits.</li><li>Free snacks and drinks onsite. </li><li>Flexible PTO policy.</li></ul>We are an equal opportunity employer and all qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity or expression, pregnancy, age, national origin, disability status, genetic information, protected veteran status, or any other characteristic protected by law.Unfortunately, we are unable to provide visa sponsorship at this time. This position involves access to technology that is subject to U.S. export controls. Any job offer made will be contingent upon the applicant’s capacity to serve in compliance with U.S. export controls. </div>

Mechanical Integration Engineer (Electronics Packaging)

<div>Radiant is an El-Segundo, CA-based clean energy startup building a nuclear microreactor. A climate-friendly alternative to diesel generators, Radiant's Kaleidos 1MW microreactor will be the world's first portable, zero-emissions power source that works anywhere. We plan to test our development reactor by 2026 and if successful, it will be the first new commercial reactor design to achieve a fueled test in over 50 years. Radiant's goal is to bring one of the world's first factory-constructed microreactors to market. Our microreactor can bring power to remote parts of the world and provide backup power for life-saving applications in hospitals or disaster-relief scenarios. </div>Senior Power Electronics EngineerThe Senior Power Electronics Engineer will play a pivotal role in the design and development of the power electronics of our nuclear-driven high-speed generator. Responsibilities include but are not limited to the design of high voltage and high speed generator drives, DC-DC converter for high voltage batteries, and standalone and grid-tied inverters. You'll join the Power Conversion and Electrical Systems team responsible for converting mechanical energy generated from a nuclear reactor to electrical energy to deliver to customers. You will own power electronics design, analysis, simulation, and component selection. You will partner cross-functionally with top industry engineers at Radiant as well as vendors and partner organizations including government agencies. Your efforts will be instrumental to bringing the first nuclear microreactor to market. Responsibilities and Duties:  <ul><li>Design and develop power electronics for a nuclear power generator.</li><li>Build detailed schematics, select components, PCBA layout, prototype, and validate hardware.</li><li>Apply EMI/EMC strategies and underlying physics to engineering problems. </li><li>Utilize expertise in design and validation of gate drivers, power stages, magnetics, and controls.</li><li>Conduct modeling and detailed simulation of inverters.</li><li>Own the design and building a fully functioning inverter autonomously.</li><li>Perform circuit formal analysis, e.g. de-rating and worst-case circuit analysis.</li><li>Optimize loss, efficiency, and conduct thermal analysis of inverter.</li></ul>Required Skills and Qualifications:<ul><li>Bachelors degree in Electrical Engineering, specializing in power electronics.</li><li>8+ years of design experience designing high voltage and high power electronics.</li></ul>Desired Skills and Qualifications:<ul><li>Expert with high voltage power semiconductor selection (Si/SiC/GaN, IGBT, Diodes, MOSFETs), gate driver, and protection circuit design.</li><li>Strong understanding of different PWM switching techniques, DPWM, ZCS, ZVS.</li><li>Expert with at least one of common power electronics tools such as PLECS, PSCAD, dSPICE, PSIM, or Simplorer.</li><li>Solid understanding of capacitor and super-capacitors design and selection such as electrolytic, film, ceramic, tantalum.</li><li>Proficiency in EMI/EMC filter design for stability, noise rejection, and surviving threat signals.</li><li>Startup experience or ability to work in a fast-paced development environment.</li><li>Demonstrated experience in embedded programming with C/C++.</li></ul>Additional Requirements:<ul><li>Must be willing to work extended hours and weekends as necessary to achieve company goals.</li></ul><div>Employee Benefits for Eligible Employees:<ul><li>Stock: Substantial incentive stock plan for all full time, salaried employees.</li><li>Medical: 100% up to base silver level plan for employee + 50% dependents, offers up to Platinum plans.</li><li>One Medical: Sponsored memberships for employees and their dependents. </li><li>Vision: 100% top tier plan coverage + 50% for dependents.</li><li>Dental: 100% top tier plan coverage, orthodontia extra, 50% for dependents.</li><li>Voluntary Life, Accident, Hospital, Critical Illness, Commuter and FSA are offered as employee contributed benefits.</li><li>Free snacks and drinks onsite. </li><li>Flexible PTO policy.</li></ul>We are an equal opportunity employer and all qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity or expression, pregnancy, age, national origin, disability status, genetic information, protected veteran status, or any other characteristic protected by law.Unfortunately, we are unable to provide visa sponsorship at this time. This position involves access to technology that is subject to U.S. export controls. Any job offer made will be contingent upon the applicant’s capacity to serve in compliance with U.S. export controls. </div>

Senior Power Electronics Engineer

<div>Radiant is an El-Segundo, CA-based clean energy startup building a nuclear microreactor. A climate-friendly alternative to diesel generators, Radiant's Kaleidos 1MW microreactor will be the world's first portable, zero-emissions power source that works anywhere. We plan to test our development reactor by 2026 and if successful, it will be the first new commercial reactor design to achieve a fueled test in over 50 years. Radiant's goal is to bring one of the world's first factory-constructed microreactors to market. Our microreactor can bring power to remote parts of the world and provide backup power for life-saving applications in hospitals or disaster-relief scenarios. </div>Senior Materials EngineerRadiant is seeking a highly motivated Senior Materials Engineer to own testing and qualification of materials and related manufacturing processes (welding, brazing, coatings, etc.) used in the Kaleidos 1MW nuclear microreactor. The ideal candidate takes great ownership of their work end-to-end, is proficient in materials selection, testing, and analysis, and is excited to work in a highly cross-functional, fast-paced environment. You will be a key contributor to building the world's first mass-produced, rapidly-deployable nuclear reactor. Responsibilities &amp; Duties  <ul><li>Plan and execute materials testing to obtain material properties to inform design decisions.</li><li>Develop and qualify application-specific manufacturing processes such as welding, brazing, coating, etc.</li><li>Provide expert guidance in materials selection for components within Kaleidos.</li><li>Identify, procure, and operate equipment for materials characterization and testing.</li><li>Evaluate data quality and accuracy of material property data for use in company materials database.</li><li>Define or improve manufacturing processes of components to achieve desired material properties.</li></ul>Required Qualifications &amp; Skills  <ul><li>Bachelor’s degree from an accredited institution in Materials Science and Engineering, or in Mechanical, Aeronautical, Nuclear, or Chemical Engineering with a materials science and engineering focus.  </li><li>5+ years of experience working in the development, testing, and/or analysis of materials for demanding load cases and environments.</li></ul>Desired Qualifications &amp; Skills  <ul><li>Master’s or PhD degree from an accredited institution in Materials Science and Engineering, or in Mechanical, Aeronautical, Nuclear, or Chemical Engineering with a materials science and engineering focus.  </li><li>Experience with development and qualification of welding, brazing, soldering and/or other solidification processes.</li><li>Experience with development and qualification of metal and non-metal coatings.</li><li>Knowledge of standard test methods for materials and experience with development of design allowables.</li><li>Self-motivated with strong organizational, written, and oral communication skills. </li><li>Demonstrated ability to work collaboratively with design and operations teams to deliver high-value results.</li><li>Experience with using text-based software development tools (Python or similar).</li></ul>Additional Requirements:<ul><li>Must be willing to work extended hours and weekends as necessary to achieve company goals.</li></ul><div>Employee Benefits for Eligible Employees:<ul><li>Stock: Substantial incentive stock plan for all full time, salaried employees.</li><li>Medical: 100% up to base silver level plan for employee + 50% dependents, offers up to Platinum plans.</li><li>One Medical: Sponsored memberships for employees and their dependents. </li><li>Vision: 100% top tier plan coverage + 50% for dependents.</li><li>Dental: 100% top tier plan coverage, orthodontia extra, 50% for dependents.</li><li>Voluntary Life, Accident, Hospital, Critical Illness, Commuter and FSA are offered as employee contributed benefits.</li><li>Free snacks and drinks onsite. </li><li>Flexible PTO policy.</li></ul>We are an equal opportunity employer and all qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity or expression, pregnancy, age, national origin, disability status, genetic information, protected veteran status, or any other characteristic protected by law.Unfortunately, we are unable to provide visa sponsorship at this time. This position involves access to technology that is subject to U.S. export controls. Any job offer made will be contingent upon the applicant’s capacity to serve in compliance with U.S. export controls. </div>

Senior Materials Engineer

<div>Radiant is an El-Segundo, CA-based clean energy startup building a nuclear microreactor. A climate-friendly alternative to diesel generators, Radiant's Kaleidos 1MW microreactor will be the world's first portable, zero-emissions power source that works anywhere. We plan to test our development reactor by 2026 and if successful, it will be the first new commercial reactor design to achieve a fueled test in over 50 years. Radiant's goal is to bring one of the world's first factory-constructed microreactors to market. Our microreactor can bring power to remote parts of the world and provide backup power for life-saving applications in hospitals or disaster-relief scenarios. </div>Director of AccountingRadiant is seeking a Director of Accounting to play a crucial role in our Finance department to manage all accounting activities to ensure compliance with US GAAP, corporate policies, and external audits. This person will lead the monthly closing of accounts and preparation of reports in support of the financial statements. You will lead interface with External Auditors to ensure proper controls are in place. The ideal candidate possesses leadership capabilities, solid operational and technical accounting background, inventory control and works proactively to drive results. This person is a self-starter, flexible, has a high level of integrity and is action-oriented in a fast-paced, collaborative environment.Responsibilities and Duties:  <ul><li>Refine our monthly, quarterly, and annual close processes, implementing new controls to improve our record-to-report and close accuracy</li><li>Lead our audits, liaising with internal teams and external auditors to ensure we are always in compliance and mitigating business/financial risk</li><li>Recommend tax strategies aligned with the company’s goals, ensuring efficient tax planning and compliance</li><li>Oversee federal, state, and local tax filings ensuring compliance with applicable tax laws and regulations</li><li>Perform reconciliations as needed for payments and ensure compliance with all company and regulatory requirements.</li><li>Receive, review, and help process vendor invoices, ensuring accuracy of payment terms and reporting.</li><li>Lead accounting automation projects, focusing on scalable finance and reporting system design, implementation, and maintenance.</li></ul>Required Skills and Qualifications:<ul><li>Bachelor's degree in Accounting, or related field.</li><li>10+ years’ experience working with hardware or inventory accounting (public/private).</li><li>In-depth understanding of US GAAP.</li><li>Experience with general ledger functions.</li></ul>Desired Skills and Qualifications:<ul><li>CPA desired</li><li>Strong attention to detail and organization skills.</li><li>Strength in effective communication and proactive attitude.</li><li>Ability to work independently and as part of a team in a fast-paced environment.</li><li>Comfort juggling multiple projects and ability to prioritize.</li></ul>Additional Requirements:<ul><li>Must be willing to work extended hours and weekends as necessary to achieve company goals.</li><li>Must work 100% onsite at El Segundo HQ.</li></ul> <div>Employee Benefits for Eligible Employees:<ul><li>Stock: Substantial incentive stock plan for all full time, salaried employees.</li><li>Medical: 100% up to base silver level plan for employee + 50% dependents, offers up to Platinum plans.</li><li>One Medical: Sponsored memberships for employees and their dependents. </li><li>Vision: 100% top tier plan coverage + 50% for dependents.</li><li>Dental: 100% top tier plan coverage, orthodontia extra, 50% for dependents.</li><li>Voluntary Life, Accident, Hospital, Critical Illness, Commuter and FSA are offered as employee contributed benefits.</li><li>Free snacks and drinks onsite. </li><li>Flexible PTO policy.</li></ul>We are an equal opportunity employer and all qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity or expression, pregnancy, age, national origin, disability status, genetic information, protected veteran status, or any other characteristic protected by law.Unfortunately, we are unable to provide visa sponsorship at this time. This position involves access to technology that is subject to U.S. export controls. Any job offer made will be contingent upon the applicant’s capacity to serve in compliance with U.S. export controls. </div>

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