Battery and Electrical High Voltage System Engineer
2 days ago
Driven by our vision of the affordable, reliable, net-zero carbon grid of the future, Mainspring has developed a new category of power generation — the linear generator — that delivers local, scalable, and fuel-flexible power to help accelerate the transition to the net-zero carbon grid.
The unique combination of attributes offered by Mainspring’s linear generator enables applications on both the commercial and utility sides of the meter for the $816B global electricity equipment market. We serve a wide range of Fortune 500 customers across markets and industries as well as top-tier utilities and other gridside providers.
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.
Mainspring is based in Menlo Park and has partnered with top-tier investors and utilities such as Khosla Ventures, Bill Gates, NextEra, and American Electric Power. More information can be found at
Responsibilities
- Design a high voltage (800V+) battery pack to enable backup battery operation of the Linear Generator.
- Lead high voltage system projects, including the design and integration of high voltage batteries, grid-tie inverters, power capacitors, VFDs, and DC/DC converters.
- Drive validation, qualification, and reliability testing of high voltage subsystems.
- Collaborate with the mechanical, controls, software, test, manufacturing, and operations teams to deliver battery packs and electrical hardware subsystems to production.
- Troubleshoot complex hardware and integration problems that arise in the R&D lab, production floor, and field units.
- Become an expert on the Linear Generator’s battery pack and high voltage electrical system.
This is a hybrid position (onsite + remote) and will require you to be onsite as required to perform testing, troubleshooting, manufacturing support, etc.
Qualifications
- 3 to 5 years of hands-on experience with high voltage battery development, testing, or integration into an electrical system.
- Technical expertise in high voltage battery systems, including understanding BMS fundamentals.
- A “collaborate-first” mindset and have successfully communicated across a range of teams and personalities.
- A bachelor’s degree, or higher, in Electrical Engineering or related field.
Nice-to-haves
- Expertise in different battery chemistries, and the ability to explain the relative strengths and weaknesses of each chemistry.
- Experience in the full hardware development life cycle, from requirements development to manufacturing support; having taken at least one product through volume manufacturing.
- Experience working at a startup or rapid development environment.
The Bay Area salary for this role is $114k-$130k base + pre-IPO stock options + benefits. This position is on-site in Menlo Park, CA. The salary will be adjusted based on the experience of the employee.
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.
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Menlo Park, CA, United States ZipRecruiter Full timeCompany Overview Driven by our vision of the affordable, reliable, net-zero carbon grid of the future, Mainspring has developed a new category of power — the linear generator — that delivers local, scalable, and fuel-flexible power to help accelerate the transition to the net-zero carbon grid. The unique combination of attributes offered by...
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