Principal Mechanical Engineer
CleraOn-site - San Francisco, California, United StatesPosted 2026-10-29
- This listing's locations
- On-site - San Francisco, California, United States
- Employment
- Full-time
- Workplace
- On site
- Compensation
- 235000–305000 per year
Department: Engineering
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About the Role
Join a small defense technology team developing autonomous directed-energy systems for counter-drone applications. As Principal Mechanical Engineer, you will guide full-system mechanical architecture and integration, bringing hardware from prototype through production and field deployment.
What You'll Do
- Own mechanical architecture across the system and lead integration with electrical, power, embedded, and optical subsystems.
- Make and guide technical decisions from concept through production readiness.
- Drive hardware release and production processes in partnership with manufacturing.
- Review designs, calculations, and test results to surface risks and strengthen engineering standards.
- Perform hands-on design and problem-solving, including tradeoffs across cost, mass, reliability, schedule, and field performance.
- Mentor engineers through technical collaboration and example.
What We're Looking For
- 10 or more years designing and shipping complex hardware systems, with repeated experience taking products from prototype through manufacturing and field deployment.
- Mechanical design is your primary discipline, including hands-on CAD, structures, mechanisms, and packaging.
- Deep mechanical expertise and sound technical judgment in at least one adjacent area, such as electrical engineering, power electronics, or embedded systems.
- Experience leading multidisciplinary hardware integration and designing equipment for demanding real-world environments.
- Ability to correlate your own FEA or hand calculations with bench or field test data.
- Background as a senior individual contributor or technical lead at a hardware company that shipped products.
- Defense, aerospace, robotics, high-performance automotive, maritime, or directed-energy experience is relevant. Experience with ruggedized systems, thermal management, gimbals, qualification standards, or manufacturing setup is valuable.
Compensation & Benefits
Base salary: $235,000 to $305,000 annually. Visa sponsorship is not available.
Location
On-site in San Francisco, California.