JobsMechanical EngineerSan FranciscoPrincipal Mechanical Engineer

Clera

Posted 4 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
APPLY ON CLERA'S CAREERS SITE ↗
SAVE THIS JOB

We'll keep this job - the posting's full text, even after it closes. Free.

We'll email a six-digit code to make this your free Advancemint sign-in - and a link for later. Terms · Privacy Policy

Opens the employer's own application page.

In short

Lead the mechanical architecture and integration of complex autonomous directed-energy systems from prototype through production. Oversee hardware release processes, mentor engineering staff, and ensure high standards for reliability and performance.

What they're looking for

MUST-HAVE SKILLS

Mechanical engineering primary discipline10+ years shipping hardwareCAD designStructures and mechanisms designFull-system hardware integrationFEA correlation with test dataAdditional discipline expertise

ALSO MENTIONED

Defense or aerospace hardware experienceDirected energy or high-power systemsThermal management or ruggedized design

Requires 10+ years of experience in designing and shipping complex hardware systems with a focus on mechanical engineering. Candidates must possess deep expertise in CAD, structures, and system integration, with a background in defense, aerospace, or robotics.

About the employer

Clera

Your AI career agent. Warm intros to startups backed by a16z, Index, YC & more.

Your AI career agent. Warm intros to startups backed by a16z, Index, YC & more.

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

KNOWN FOR

headhuntingjobsAIstartupsrecruitingcareer

Is your LinkedIn profile ready for roles like this?

A free review of your profile, scored against what Engineering roles ask for, and what to fix first.

GET MY FREE REVIEWFREE · A SCORED REVIEW OF YOUR PROFILE, IN MINUTES

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 own system-wide mechanical architecture and help take complex hardware from prototype through production and field deployment. Lead mechanical architecture and integration across electrical, power, embedded, and optics subsystems.

▶ READ THE FULL POSTING

About the Role

Join a small defense technology team developing autonomous directed-energy systems for counter-drone applications. As Principal Mechanical Engineer, you will own system-wide mechanical architecture and help take complex hardware from prototype through production and field deployment.

What You'll Do

  • Lead mechanical architecture and integration across electrical, power, embedded, and optics subsystems.
  • Make technical decisions on challenging hardware problems from concept through production readiness.
  • Guide hardware release and production processes in partnership with manufacturing teams.
  • Review designs, calculations, and test results to identify risks early and maintain high engineering standards.
  • Personally execute mechanical design work when your experience can resolve a problem quickly.
  • Balance cost, mass, reliability, schedule, and field performance in design and manufacturing decisions.
  • Mentor engineers through hands-on technical leadership and design reviews.

What We're Looking For

  • 10 or more years designing and shipping complex hardware systems, including multiple transitions from prototype through manufacturing and deployment.
  • Mechanical engineering is your primary discipline, with recent hands-on experience in CAD, structures, mechanisms, and packaging.
  • Deep mechanical expertise and sound judgment in at least one additional area, such as electrical engineering, power electronics, or embedded systems.
  • Experience leading full-system hardware integration and designing equipment for demanding real-world environments.
  • Ability to correlate FEA or hand calculations with bench or field test data.
  • Background as a senior individual contributor or technical lead at a hardware organization that shipped products.
  • Experience in defense hardware, aerospace, robotics, high-performance automotive, maritime, or a related field is valuable. Directed energy, laser or high-power systems, thermal management, ruggedized equipment, and manufacturing scale-up experience are also relevant.

Compensation & Benefits

Base salary: $235,000 to $305,000 annually. Visa sponsorship is not available.

Location

On-site in San Francisco, California, United States.

APPLY ON CLERA'S CAREERS SITE ↗
SAVE THIS JOB

We'll keep this job - the posting's full text, even after it closes. Free.

We'll email a six-digit code to make this your free Advancemint sign-in - and a link for later. Terms · Privacy Policy

Similar roles open now

All 12 Mechanical Engineer roles in San Francisco

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 9 Nov 2026.