Source-listed Job

Principal Mechanical Engineer

ABOUT THE ROLE

Job Source description available
Clera San Francisco Source published Oct 21, 2026 Source retrieved Oct 21, 2026
Source: Clera (ashby) · A retrieval date records when our system last obtained the source record. It does not guarantee the vacancy is still open or that every detail has been independently checked.
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EmploymentFull-time

Overview

ABOUT THE ROLE

Full job description

ABOUT THE ROLE Join a small defense technology engineering team developing autonomous, field-deployed directed energy systems. As Principal Mechanical Engineer, you will own system-level mechanical architecture and help take complex hardware from prototype through production and deployment. WHAT YOU'LL DO

  • Lead mechanical architecture across the system and integrate it with electrical, power, embedded, and optics disciplines.
  • Make technical decisions on challenging engineering problems from concept through production readiness.
  • Guide hardware release and production processes in close collaboration with the manufacturing team.
  • Identify technical risks early and review designs, analyses, documentation, and release standards.
  • Perform hands-on design and analysis when your experience can resolve difficult problems quickly.
  • Balance cost, mass, reliability, schedule, and field performance in design and manufacturing decisions.
  • Share technical judgment and mentor engineers through direct collaboration and example. WHAT WE'RE LOOKING FOR
  • At least 10 years of experience designing and shipping complex hardware systems.
  • Mechanical design as your primary discipline, including recent personal CAD and engineering analysis work.
  • Repeated experience taking hardware from prototype through manufacturing and field deployment.
  • Experience designing ruggedized systems for real-world conditions and correlating FEA or hand calculations with test data.
  • Strong mechanical expertise, with sound technical judgment in electrical engineering, power electronics, or embedded systems.
  • Experience owning mechanical architecture and integrating multiple engineering disciplines.
  • A senior individual contributor or technical lead background at a hardware company that has shipped products.
  • Relevant backgrounds may include defense, aerospace, high-performance automotive, maritime, robotics, or directed energy.
  • Experience with lasers or high-power systems, thermal management, gimbals or beam directors, military qualification standards, or production line development is useful. COMPENSATION & BENEFITS Base salary is $235,000 to $305,000 USD annually. Visa sponsorship is not available. Equity and benefits details were not provided. LOCATION This is an on-site role in San Francisco, California, United States.

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