Clera

Principal Mechanical Engineer

San Francisco · Full-time

Clera

At a glance

Principal Mechanical Engineer is an open full-time job at Clera (San Francisco · On-site).

CompanyClera
LocationSan Francisco · On-site
TypeFull-time
DepartmentEngineering
PayCreate a free account to see the pay
Posted2026-11-05
Found onAshby

About this 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 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

Visa sponsorship is not available.

Location

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

Questions about this job

Where is the Principal Mechanical Engineer job at Clera?

San Francisco.

What does the Principal Mechanical Engineer job at Clera pay?

The listing states a pay range. Create a free account on this site to see it.

Is this a full-time or part-time job?

The listing describes it as Full-time.

How do I apply to Clera?

Create a free job seeker account on this site, then use the Apply button to open the employer's own posting.

Hiring for this role at Clera? Create your hiring profile with your work email, so job seekers can find and connect with you.

All jobs at Clera · More jobs near San Francisco

Book a free consultation

Tell us about your team and the software you need help with. We'll follow up to schedule a time to talk.

Open the form on its own page

Talk to a person

The fastest way is to pick a time. Prefer to write? Leave a message and we will email you back, usually the same business day.

Book a free call

By sending this you agree to our Terms and Privacy Policy.