<h3>About Mainspring</h3><p>Mainspring Energy manufactures and delivers fuel-flexible, low-emissions local power solutions that rapidly add new capacity and deliver reliable, affordable, and sustainable electric power. The company began commercial shipments of its Mainspring Linear Generators in 2020 and today has hundreds of megawatts in advanced development and field operations for leading Fortune 500 companies, data centers, and utilities. Mainspring also partners with global energy leaders including AEP, NextEra Energy Resources, Schneider Electric, and more.</p><p>The <a href="https://www.mainspringenergy.com/company"><span style="color:#3598db;"><span style="text-decoration:underline;">core values</span></span></a> that ground our work, guide our decisions, and connect us together:</p><ul><li>Pragmatic Optimism</li><li>Excellence without Ego</li><li>Proactive Collaboration</li></ul><div><br></div><h3>Job Overview</h3><p>Mainspring is seeking a versatile Systems Integration Engineer to lead the architectural design and deployment of the hardware-to-software interface for our Linear Generator sites. You will serve as a cross-functional technical lead for Balance of System (BoS) strategy, developing modular hardware platforms that scale from small microgrids to utility-scale power plants. In this capacity, you will own the full design lifecycle and vendor management for our Industrial Control Panels (ICP), which serve as the critical communication and I/O hub for our Linear Generator sites.</p><br><br><h3>Responsibilities</h3><ul><div><li>Manage the full design cycle for NEMA 3R and 4X control cabinets, including component selection for industrial PCs, managed switches, and I/O modules</li><li>Design and implement I/O mapping for control and safety systems, including E-Stop synchronization, blackstart triggers, and ground-fault detection using Modbus/TCP-based edge devices </li><li>Architect robust site-level communication networks, including managed VLAN structures and fiber/copper hybrid topologies for high-demand environments </li><li>Be the primary technical interface for outsourced design firms and panel manufacturers, ensuring high reliability designs, UL 508A compliance and manufacturing scalability </li><li>Lead technical reviews and coordinate with contract manufacturers to drive cost-reduction, design-for-manufacturability (DFM), and UL 508A certification</li><li>Manage the physical and electrical interfaces between the linear generator  and external balance-of-system equipment, such as external grid-tied inverters</li></div></ul><h3>Qualifications</h3><ul><div><li>Bachelor's or Master's degree in Electrical Engineering or a related field</li><li>5+ years of demonstrated experience developing industrial control panels and integrated systems</li><li>Strong understanding of DC/AC power distribution, relay logic, and industrial communication protocols (Modbus, Ethernet/IP)</li><li>Demonstrated experience integrating complex hardware platforms with third-party software controllers or utility-level aggregators </li><li>Experience with UL 508A standards, control panel layout, and thermal management in outdoor environments (-30C to 50C)</li><li>Proven ability to manage complex project dependencies, including hardware fitment within tight spatial constraints</li></div></ul><h3>Bonus</h3><ul><div><li>Familiarity with grid-tied inverters, battery pre-charge circuits, or Linux-based industrial PCs</li><li>Experience with PLC programming, Microgrid or SCADA system integration</li></div></ul><br><p>Does your experience not meet all of our posted requirements? Studies have shown that some people are less likely to apply to positions unless they meet every listed requirement. At Mainspring, we are committed to building a diverse, inclusive, flexible, and collaborative environment, so if you want to help us transition the world to clean and affordable electricity, and don’t meet all posted requirements for a particular role, we’d still love to hear from you. Mainspring can sometimes be flexible enough to shift responsibilities for the right person, or otherwise identify open or upcoming roles that may better fit your professional background.</p><p>In more traditional words, Mainspring Energy, Inc is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, or protected veteran status and will not be discriminated against on the basis of disability.</p><p>This compensation and benefits information is based on Mainspring Energy's estimate as of the date of publication and may be modified in the future. We generally do not negotiate on salary once we have made an offer. The level of pay within the range will depend on a variety of job-related factors that may include location, relevant prior experience and/or education, or particular skills and expertise. New hires joining the company tend to be paid within the starting base pay range noted above, with opportunities to increase pay over time based on development of additional skills, competencies, and company-specific knowledge.</p>

<p class="text-steel f-b1 md-max:mb-d">At Mainspring we believe the fastest path to the net-zero carbon grid is vastly increasing the amount of solar and wind power while building a supporting clean energy system that ensures affordability and multi-day, cross-season resilience. Getting there requires flexible, scalable, local technologies that can adapt to the shifting grid landscape &ndash; including the transition from natural gas to renewable fuels like biogas, green ammonia, and green hydrogen.</p>
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<p class="text-steel f-b1">The Mainspring Linear Generator delivers an unmatched level of flexibility for the transition ahead. It&rsquo;s local so you can site where power is needed, it&rsquo;s dispatchable so you can ramp up and down to complement renewables, and it&rsquo;s fuel-flexible so you can operate on the cleanest fuels available today and in the future. Our products are already at work at Fortune 500 customer sites, accelerating the arrival of the net-zero carbon grid.</p>
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Senior Electrical Engineer - Balance of System Integration Engineer

<h3>About Mainspring</h3><p>Mainspring Energy manufactures and delivers fuel-flexible, low-emissions local power solutions that rapidly add new capacity and deliver reliable, affordable, and sustainable electric power. The company began commercial shipments of its Mainspring Linear Generators in 2020 and today has hundreds of megawatts in advanced development and field operations for leading Fortune 500 companies, data centers, and utilities. Mainspring also partners with global energy leaders including AEP, NextEra Energy Resources, Schneider Electric, and more.</p><p>The <a href="https://www.mainspringenergy.com/company"><span><span>core values</span></span></a> that ground our work, guide our decisions, and connect us together:</p><ul><li>Pragmatic Optimism</li><li>Excellence without Ego</li><li>Proactive Collaboration</li></ul><div><br /></div><h3>Job Overview</h3><p>Mainspring is seeking a versatile Systems Integration Engineer to lead the architectural design and deployment of the hardware-to-software interface for our Linear Generator sites. You will serve as a cross-functional technical lead for Balance of System (BoS) strategy, developing modular hardware platforms that scale from small microgrids to utility-scale power plants. In this capacity, you will own the full design lifecycle and vendor management for our Industrial Control Panels (ICP), which serve as the critical communication and I/O hub for our Linear Generator sites.</p><br /><br /><h3>Responsibilities</h3><ul><div><li>Manage the full design cycle for NEMA 3R and 4X control cabinets, including component selection for industrial PCs, managed switches, and I/O modules</li><li>Design and implement I/O mapping for control and safety systems, including E-Stop synchronization, blackstart triggers, and ground-fault detection using Modbus/TCP-based edge devices </li><li>Architect robust site-level communication networks, including managed VLAN structures and fiber/copper hybrid topologies for high-demand environments </li><li>Be the primary technical interface for outsourced design firms and panel manufacturers, ensuring high reliability designs, UL 508A compliance and manufacturing scalability </li><li>Lead technical reviews and coordinate with contract manufacturers to drive cost-reduction, design-for-manufacturability (DFM), and UL 508A certification</li><li>Manage the physical and electrical interfaces between the linear generator  and external balance-of-system equipment, such as external grid-tied inverters</li></div></ul><h3>Qualifications</h3><ul><div><li>Bachelor's or Master's degree in Electrical Engineering or a related field</li><li>5+ years of demonstrated experience developing industrial control panels and integrated systems</li><li>Strong understanding of DC/AC power distribution, relay logic, and industrial communication protocols (Modbus, Ethernet/IP)</li><li>Demonstrated experience integrating complex hardware platforms with third-party software controllers or utility-level aggregators </li><li>Experience with UL 508A standards, control panel layout, and thermal management in outdoor environments (-30C to 50C)</li><li>Proven ability to manage complex project dependencies, including hardware fitment within tight spatial constraints</li></div></ul><h3>Bonus</h3><ul><div><li>Familiarity with grid-tied inverters, battery pre-charge circuits, or Linux-based industrial PCs</li><li>Experience with PLC programming, Microgrid or SCADA system integration</li></div></ul><br /><p>Does your experience not meet all of our posted requirements? Studies have shown that some people are less likely to apply to positions unless they meet every listed requirement. At Mainspring, we are committed to building a diverse, inclusive, flexible, and collaborative environment, so if you want to help us transition the world to clean and affordable electricity, and don’t meet all posted requirements for a particular role, we’d still love to hear from you. Mainspring can sometimes be flexible enough to shift responsibilities for the right person, or otherwise identify open or upcoming roles that may better fit your professional background.</p><p>In more traditional words, Mainspring Energy, Inc is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, or protected veteran status and will not be discriminated against on the basis of disability.</p><p>This compensation and benefits information is based on Mainspring Energy's estimate as of the date of publication and may be modified in the future. We generally do not negotiate on salary once we have made an offer. The level of pay within the range will depend on a variety of job-related factors that may include location, relevant prior experience and/or education, or particular skills and expertise. New hires joining the company tend to be paid within the starting base pay range noted above, with opportunities to increase pay over time based on development of additional skills, competencies, and company-specific knowledge.</p>

Senior Electrical Engineer - Balance of System Integration Engineer

About the Job

About the Company

Mainspring Energy

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