Senior Reliability Engineer, Electrical Systems
Quick Summary
Company Overview Mainspring Energy is revolutionizing power generation with the world’s most flexible and adaptable local power generation technology, the Mainspring Linear Generator.
Mainspring Energy is revolutionizing power generation with the world’s most flexible and adaptable local power generation technology, the Mainspring Linear Generator. Commercial, industrial, and utility leaders are choosing Mainspring over traditional options like engines, turbines, and fuel cells to quickly and reliably deliver local power for EV charging, commercial facilities, data centers, and grid-scale operations.
The Mainspring Linear Generator is fuel flexible, ramps up and down to meet demand, and utilizes a flameless reaction with near-zero NOx emissions. Backed by top-tier investors including Khosla Ventures, Bill Gates, American Electric Power, Lightrock, and General Catalyst Mainspring designs, manufactures and delivers its products to customers across the U.S. today, and we’re quickly scaling for international expansion.
Inspired by our vision of the affordable, reliable, net-zero carbon grid, Mainspring is rapidly expanding within the $816B global electricity equipment market, and we’re hiring the best talent to meet growing customer demand around the globe. We welcome a broad range of backgrounds, experiences, and talents to bring fresh perspectives and ongoing innovation to our customers.
We are looking to build relationships with people who share our values:
Pragmatic Optimism. Building a new category of world-class power generation requires the optimism of ambition and creativity, balanced with practicality to solve problems efficiently. The challenges that arise are opportunities for growth.
Excellence without Ego. We bring expertise and commitment to creating the best customer experience, from sales to deployment and service, just as we apply deep technical rigor to building and delivering world-class products. We strive for excellence and behave as leaders with the humility to acknowledge our challenges, both collectively and as individual contributors.
Proactive Collaboration. The integration and cross-disciplinary nature of Mainspring’s business requires intentionally seeking out others who bring different skills, perspectives, and priorities. Our culture of inclusion and respect extends beyond our team to interactions with our partners and customers.
More information can be found at www.mainspringenergy.com
Perform reliability testing including mechanical stress tests, shock, vibration and environmental testing
Prepare concise and detailed test plans and reports
Conduct failure analysis using analytical techniques and methodology to derive root cause
Direct and develop design engineers in the implementation of the product performance risk analysis process
Lead cross functional teams executing FMEA for design, process and maintenance
Develop verification test plans with design engineers based on system and sub-system specs and possess the knowledge of system architecture and industry standard protocols
Design, build and run specialized test equipment as required to test unique electrical operating circuits with an emphasis on maximizing test output to obtain results with rapid design cycles
Based on knowledge of UL and NFPA standards, guide cross-functional design team for excellence of design in electrical & fuel system components
Bachelor of Science in Electrical Engineering or Mechanical Engineering
5+ years experience with testing for electrical hardware, PCBA’s or cable assemblies with an emphasis on reliability
Experience working in a dynamic engineering environment, where systems and processes are evolving rapidly
Demonstrated ability to complete challenging multi-system engineering projects
In depth understanding and use of FMEA (Failure Mode and Effects Analysis)
Ability to set up and automate a variety of repetitive testing operations
Data Analysis and reporting capabilities (Python, Matlab, Google Docs, Weibull ++, JMP, etc.)
Experience with CAPA (Corrective Action Preventative Action) type processes (RCA, 8D, etc.), in iterative development to improve products
Strong understanding of electrical system concepts and components
Ability to navigate schematic and PCBA layout using ECad tools (Altium365, Orcad etc.)
Proficiency in use of Oscilloscope, Function Generator and DMM
Understanding of failure characterization and reliability of HV/LV electronics hardware, a plus
Experience using failure analysis techniques such as X-ray, CT, cross-sectioning and optical microscopy, a plus
Experience in compliance testing and knowledge of standards (UL, IEC, etc.), a plus
Strong understanding of mechanical assemblies, a plus
Location & Eligibility
Listing Details
- Posted
- May 13, 2026
- First seen
- May 13, 2026
- Last seen
- May 15, 2026
Posting Health
- Days active
- 0
- Repost count
- 0
- Trust Level
- 79%
- Scored at
- May 13, 2026
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