Clera
From company careers site
Principal Mechanical Engineer
- Location
- San Francisco
- Work mode
- On-site
- Employment type
- Full-time
About the job
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.
From Clera's careers page (Ashby), checked 30 Oct 2026.
How to apply
- Select Apply on getclera.com. It opens Clera's own application form in a new tab, run on Ashby.
- Fill in the form and upload your résumé there. Jobiwork never sees your application.
- Clera will reply to you directly. No real employer asks you for money to apply.
Posted 29 Oct 2026 · checked 30 Oct 2026 · Report this job
