Senior Electrical Engineer
Mainspring Energy
Senior Electrical Engineer
Mainspring Energy
Onsite linear generators for scalable power
Salary Range: 147000 to 173000 (Currency: USD) (Pay period: per-year-salary)
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.
The core values that ground our work, guide our decisions, and connect us together:
Lead Corrective and Preventive Action (CAPA) root-cause investigations to diagnose and resolve complex field and lab grid-tied inverter (GTI) anomalies
Configure and tune inverter parameters for stable operation across grid-forming and grid-following modes
Validate microgrid integration, black-start capabilities, and grid-edge compliance (CA Rule 21, IEEE 1547-2018, low-voltage ride-through)
Support qualification testing and integration for next-generation power system architectures
Perform critical design reviews and collaborate cross-functionally with mechanical, thermal, controls, test engineering and software engineers to ensure holistic system performance and manufacturability
You should have...
Bachelor's or Master's degree in Electrical Engineering or a related field.
5+ years of hands-on experience integrating industrial power conversion hardware or energy storage systems
Strong troubleshooting skills with AC power systems, including waveform analysis, fault behavior, and system stability
Comfort working on high voltage systems (400-800 Vac, up to 1500Vdc) in both a laboratory and industrial field environment
Experience with industrial communication protocols (Modbus TCP/RTU, CANbus, SunSpec) for power electronics control
The ability to work independently and own complex technical problems from initial identification through final resolution
Demonstrated experience in the development, deployment, or optimization of grid-scale energy projects
Expertise in Protection & Control (P&C), including programming SEL or Basler relays and coordinating with utility engineers for grid interconnection
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.
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.
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.
Onsite linear generators for scalable power
Mainspring Energy designs and ships onsite linear generators that produce electricity for commercial and industrial customers, data centers, utilities, and microgrids. The kit uses a straight-line motion that is converted into electric current by magnets moving through copper coils, driven by a flameless, low-temperature air-and-fuel reaction with only two moving parts and an oil-free air-bearing. The system is fuel-flexible, handling natural gas, biogas, hydrogen, ammonia, and propane, and it scales from about 250 kW to more than 100 MW, with near-zero NOx and no after-treatment required. The company sells power as a service, enabling installations with no upfront cost and ongoing payments based on energy use, aiming to lower operating costs and increase energy resilience for its customers.
Explore more opportunities at Mainspring Energy