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Lunar Energy

Power Electronics Engineer

Mountain View, CA$125k–$165kmidAdded today

About this role

Lunar Energy seeks a Power Electronics Engineer to design and optimize power conversion systems for clean energy products. You'll own projects from specification through manufacturing, working across teams to develop efficient DC/DC converters, isolated power supplies, and inverters ranging from 10W to 10kW.

What you'll do

  • Design power electronic systems including topology selection, semiconductor choice, magnetics design, schematics, layout, EMC, and safety
  • Create and execute verification and validation test plans for components and complete systems
  • Perform system bring-up, testing, and performance optimization to validate functionality
  • Collaborate with mechanical, thermal, reliability, and firmware teams to optimize products
  • Own power conversion systems end-to-end from specification through prototype, validation, and manufacturing
  • Contribute to product-level features, design, and vision leveraging experience and creativity

What they're looking for

  • Power electronics design with 5+ years experience
  • Active and passive component loss analysis and mitigation
  • High efficiency converter design with wide bandgap devices
  • Converter topology analysis, selection, and design (two-level, multilevel, soft switching)
  • Magnetics design, core materials, winding structure, and insulation strategies
  • EMC design, PCB layout, and filter design
  • Schematic and layout design for power conversion
  • Lab instrumentation: oscilloscopes, impedance analyzers, high voltage/current testing

Benefits

  • Medical, dental, and vision insurance for employees and dependents
  • Flexible Paid Time Off plus 10 paid holidays
  • Equity participation in a fast-growing company through stock program
  • Tax-deferred 401(k) plan
  • Paid parental leave: 12 weeks for birthing parent, 6 weeks for non-birthing parent
  • Subsidized EV charging and pre-tax commuter benefits
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Lunar Energy

Lunar Energy builds hardware and software systems that require sophisticated integration, testing, and field deployment. The company is hiring Systems Test Engineers, Field Service Engineers, and Data Infrastructure Engineers to support product launches, system integration, and enterprise data platform operations.

View all jobs at Lunar Energy

Likely interview questions

  • Describe your experience designing power converters across different power levels and topologies—what were the key design trade-offs you made?
  • Walk us through your approach to magnetics design, including core material selection and optimization for a specific application you've worked on.
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