Prototyping Engineer, Hands

1X Technologies
San CarlosPosted 5 March 2026

Tech Stack

Job Description

1X builds the world’s most dexterous humanoid hands in-house. We prototype every day, break stuff, and ship real progress daily. The job: Live inside the Hands team. Turn mech designs into working hardware overnight. Be the guy everyone pings when they need a new finger, joint, or test rig yesterday. You’ll do: - Same-day / next-day prototypes for the hand: mill, turn, print, cut, assemble, solder - Quick-turn CAD (Onshape/SolidWorks) part in hand bolted on robot→ → - Build functional assemblies: tendons, sensors, skins, gears, whatever it takes - Run abuse tests, cycle tests, drop tests on the bench - Iterate mechs with the design team until it survives real use - Hack test rigs so we can measure force, speed, precision fast - Keep your corner of the shop stocked and machines running - Document just enough so the next rev is faster