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Prototype Machinist

comma.ai
San Diego, CA Full Time
POSTED ON 7/29/2026
AVAILABLE BEFORE 11/26/2026

We are comma.ai. We’re a small team building the Android of self-driving cars. Our fleet drives hundreds of millions of miles every year all around the world. We build openpilot, an open-source driving agent, and comma four, the hardware that runs it. openpilot and our hardware are designed and built in San Diego.

We’re looking for someone to join our hardware team and run our new machine shop. You’ll lead prototype manufacturing for all future comma products, from comma four-style devices to our new datacenter products.

We’re building SendCutSend at home. The shop already has a Haas VF-2, a lathe, 3D printers, and budget for whatever else we need to bring prototyping fully in-house.

You’ll own parts from CAD to finished prototype: CAM, setup, fixturing, machining, inspection, and iteration with the hardware team. You’ll turn ambiguous ideas, sketches, and early designs into working parts fast.

Qualifications

  • Experience with CAM, CNC setup, and machining
  • Excellent attention to detail
  • Resourceful enough to take ambiguous designs from sketch to working prototype
  • Haas CNC experience is a plus
  • Mechanical engineering and CAD skills are a plus

How to apply

Email work@comma.ai with examples of cool projects you've built.

Pay: $80,000.00 - $120,000.00 per year

Benefits:

  • 401(k)
  • Dental insurance
  • Flexible schedule
  • Health insurance
  • Paid time off
  • Vision insurance

Work Location: In person

Salary : $80,000 - $120,000

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