Lunar Energy
Principal Firmware Engineer
$230K–$260K
Mountain View, CA +1 · Principal · Full-time · Posted Jul 22, 2026
- Location
- Mountain View, CA
San Francisco, California, United States - Experience
- 12+ years of software development and architecture experience.
About the job
Develops and architects firmware across Lunar Energy’s hardware stack, from bootloader to application, to deliver reliable, efficient, and safe device functionality.
What you'll do
- Develop and optimize device and platform firmware, including on constrained hardware and at the edge.
- Port and maintain RTOS software; integrate firmware components with other parts of the system.
- Drive system architecture discussions and support testing, reliability, manufacturing, and debugging.
What they ask for
- Experience developing and architecting software across the full lifecycle, from prototype to production.
- Experience developing C for bare-metal systems and/or RTOS.
- Experience implementing power electronics firmware control functionality.
- Ability to integrate hardware and software into end-to-end solutions.
Nice to have
- Experience with Git and continuous integration.
- Experience working in a small, fast-moving, multidisciplinary team.
Pay
$230,000-$260,000 USD base salary
Tools
C, RTOS, Git
Model-written summary · the original posting is authoritative