JobsMechanical EngineerSan FranciscoPrincipal Mechanical Engineer

Clera

Posted 7 days ago · Jobs at Clera

Principal Mechanical Engineer

Clera · San Francisco, California, United States

Full-timeOn site10+ yrs$235k–$305kListed as no visa sponsorshipTechnology, Information and Internet
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In short

The Principal Mechanical Engineer will lead the mechanical architecture and integration of autonomous directed-energy systems from prototype through production. This role involves hands-on design, technical decision-making, and mentoring engineering staff to ensure high-performance field deployment.

What they're looking for

MUST-HAVE SKILLS

Mechanical architectureHardware integrationCADFEAThermal managementGimbalsSystems engineeringManufacturing

ALSO MENTIONED

Mechanical EngineeringAutonomous SystemsDirected-energyCounter-droneHardware ArchitectureCADFEAManufacturingSystems IntegrationThermal Management

Candidates must have 10 or more years of experience in designing and shipping complex hardware systems, with a strong background in mechanical design and multidisciplinary integration. Proficiency in CAD, FEA, and experience in defense, aerospace, or robotics industries is required.

About the employer

Clera

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INDUSTRY
Technology, Information and Internet
COMPANY
Privately Held
FOUNDED
2025
HEADQUARTERS
San Francisco
SIZE
11-50on LinkedIn
OFFICES
3 on LinkedIn
OPEN HERE
8 roles

KNOWN FOR

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Questions about this role

Is this Clera role remote?
Tagged on site.
What does it pay?
The posting lists $235,000–$305,000 a year.
Does it sponsor visas?
Listed as no visa sponsorship.
What experience does it ask for?
Listed as 10+ years.

The posting, in full

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. Own mechanical architecture across the system and lead integration with electrical, power, embedded, and optical subsystems.

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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.

APPLY ON CLERA'S CAREERS SITE ↗
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This listing comes from Clera's own careers site. Apply links go to the employer. Company facts are from Clera's public profile. Last checked 5 Nov 2026.