OS3 logo
OS3

1 open role

Mechanical Design Engineer - Robot Parts & Enclosures (Contract)

San Francisco, CA, US / Remote (IN)ContractAny (new grads ok)Posted Jul 18, 2026

Job description

We design and build our robots in-house, from structural parts to exterior covers, and iterate on them continuously as the robots run in the real world. You'll own the CAD design of robot parts and enclosures — working remotely, with your designs printed, machined, and tested on real robots in our San Francisco lab.

You will:

  • Design robot parts, enclosures, and covers in CAD for 3D printing, CNC, and sheet metal
  • Package cameras, sensors, compute, actuators, and wiring into clean, serviceable assemblies
  • Own designs from concept through prototype, assembly feedback, and revision
  • Produce CAD geometry clean enough to feed our simulation and testing pipeline
  • Iterate fast: you design remotely, we build in SF, and you get feedback from real robots within days

You have:

  • Strong CAD fundamentals — parametric modeling, assemblies, tolerancing, DFM
  • Hands-on prototyping experience: you've printed, machined, assembled, and fixed your own designs
  • A feel for designing around electronics, cabling, and moving joints
  • Clear async communication — you can drive a design loop remotely
  • Nice to have:
  • Experience with robot arms, grippers, or mobile platforms
  • Industrial design sensibility for exterior covers and finishes
  • Option to convert to full-time. In-person interns are welcome to apply as well, provided they have CAD experience.

Description copied from OS3's careers page. Read the full posting before you apply.

More jobs in San Francisco

See all jobs in San Francisco