Software Engineer Intern
Relling · San Francisco, CA, US
Job Description
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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