• Jobs
  • Startups
  • Hire
LoginSign up

Role description

Mechanical Design Engineer - Robot Parts & Enclosures (Contract)

OS3 logoOS3YC S26
TypeContract
WorkplaceRemote
SalaryINR 360,000–800,000
LocationSan Francisco, CA
Engineering

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.

Relevant archetypes

Apply on Y Combinator
Save

Company info

OS3 logo

OS3

Affordable, intelligent humanoid robots built to deploy at scale

Pre-seedYC S26Fresh from YCBrand new
Founded2025
HQSan Francisco, United States
Size
Unlock human wisdom
ThesisTermsPrivacy
1–10 employees
IndustryTechnology, Information and Internet
Funding
  • Pre-seed · Aug 11, 2026

Claim os3robotics.com

Work at os3robotics.com? Sign in to claim this org and manage its profile.

© 2026 Saywise Inc.