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In office (San Francisco)
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Intern
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Confirmed on the employer's own hiring board on Oct 16, 2026. First seen by Alion on Aug 28, 2026.

Overview
Company
Impact
Profile match
Relling is a San Francisco startup that automates American manufacturing with AI robot workcells qualified off-site and installed on the customer floor within weeks. It was founded by SpaceX and NASA alumni to address the manufacturing labor shortage and hires a robot learning engineer along with growth, partnerships and business operations staff. The company is headquartered in San Francisco, California, United States.
Backed by Y Combinator

You'll work on the stack that gets a policy from "recorded a human doing it" to "running on a line." Depending on your strengths and what's on fire, that could mean:

  • Data collection tooling. Teleop capture, episode management, labeling pipelines. The difference between 8 minutes of usable demonstrations and 8 minutes of garbage is almost entirely tooling.

  • Training and evaluation infrastructure. Reproducible runs, checkpoint management, and - the part everyone skips - real evaluation harnesses. If we can't measure a policy's success rate with enough trials to trust the number, we don't know anything.

  • Policy work. Imitation learning (ACT, diffusion policies), visual servoing, observation-space design. Our experience matches the published literature here: what you condition the policy on matters more than which backbone you pick.

  • Perception glue. Segmentation and tracking models feeding structured observations to controllers. Lots of SAM2, DINOv2, and small task-specific networks.

  • Deployment. Getting the above onto real hardware, at real control frequencies, without it falling over on hour four.

You will also do unglamorous things: fix the data loader, chase a 20 Hz timing mismatch, re-cut a fixture, sit next to the cell and watch it fail 40 times. This is the job.

What we're looking for

Required

  • Strong Python. You've written code other people had to maintain.
  • Comfort with PyTorch - you can read a training loop and know where to put a breakpoint.
  • Enough Linux and git to be self-sufficient.
  • Empirical instincts. When something doesn't work, your first move is to isolate a variable, not to change three things and re-run.
  • Currently enrolled in CS, EE, ME, robotics, or equivalent - or you can demonstrate the skills some other way. We care about the second clause.

Nice to have (genuinely optional - we don't expect all of these)

  • Hands on real robots: ROS/ROS2, arm kinematics, cameras, calibration.
  • Familiarity with modern manipulation policies - ACT, Diffusion Policy, VLAs (π0, RDT, OpenVLA, GR00T).
  • CAD, fixturing, or any ability to make a physical thing exist.
  • You've run an experiment that failed and can explain precisely why.

What we don't require

  • Publications.
  • Prior internships.
  • Knowing the specific model families above. If you can learn fast and debug carefully, the domain is learnable in weeks.

How we work

  • Small scope, real ownership. You'll own something that ships, not a side quest that gets archived in September.

  • Evidence over vibes. We read papers, and we assume their numbers are optimistic until we reproduce them. Independent verification is a first-class activity here.

  • Honest failure reporting. Telling us early that an approach isn't working is more valuable than making it look like it is.

  • Physical reality wins. A load cell and an if-statement beat an elegant policy that can't sense the thing it needs to sense.

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