Relling Systems (YC S25) builds ready-to-deploy AI robot workcells for US manufacturers. We design and test in San Francisco and put systems to work on factory floors. This role is in person in Potrero Hill, San Francisco.
What you'll doBuild and test control sequences for robot workcells, including sensors, actuators, interlocks and recovery.
Bring up hardware with software and mechanical engineers; diagnose failures with measurements and logs.
Document states, interfaces and commissioning checks so a cell can be debugged on a factory floor.
Hands-on controls, electrical or robotics project experience. Coursework plus a strong build is welcome.
Can explain a state machine, read a wiring diagram and test a failure safely.
PLC, industrial networking, motor-control or Formula Electric subsystem experience is useful, not mandatory.
Apply with your resume and a short description of something you built. Project links are optional. Tell us what you owned, what failed and how you tested the fix. Coursework, student teams and personal projects count.
Skills Required
- Hands-on controls, electrical, or robotics project experience
- Ability to explain a state machine
- Ability to read a wiring diagram
- Ability to test a failure safely
- PLC experience
- Industrial networking experience
- Motor-control experience
- Formula Electric subsystem experience
What We Do
Relling builds and deploys turnkey, AI-native robot workcells for American manufacturers, targeting high-mix, contact-rich production tasks that conventional automation struggles to handle. Its systems automate assembly, machine tending, finishing, kitting, welding, and inspection—work that classical automation cannot economically handle. Cells are scoped and qualified off-site, then run on US factory floors in weeks, bringing physical AI into practical manufacturing operations.
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