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Archived listing. No job board we track has listed this role since 3 Aug 2026, so it has probably been filled. We keep it for reference. See today's verified listings.

Simulation/RL Integration Engineer

Lumen LabsREMOTE (US/Canada), then ONSITE SF from fall 2026

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Lumen (https://lumenresearch.ai) is building the cognitive layer for physical AI. Most robotics efforts today learn from thousands of hours of human teleoperation; we think that has a ceiling. White paper: http://lumenresearch.co/paper
Team of two ex-founders — you'd be #3. Pre-seed, runway well into 2027, raising a seed later this year.
We test many model architectures against many sims, and hooking them together is our biggest pain point. We use Gymnasium and Shimmy as the plumbing and upstream useful pieces as open-source contributions. You'd build per-sim adapters to a shared interface contract, bridge single-env vs. GPU-vectorized and sync vs. async paradigms, and own our eval harness.
Looking for: strong Python, Gymnasium (especially the vector API), hands-on experience with Isaac, MuJoCo, or Gazebo, and a track record of getting models running in sims where they didn't before.
Email [email protected] about you and your projects — link one where you got a model working in a sim it wasn't built for and you'll jump the pile.
Full posting: https://desert-bearskin-26d.notion.site/Simulation-Engineer-Lumen-399e2e6bfecb80a69dd3fc78b7e8dfbb?source=copy_link

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Where this listing came from

  1. 25 Jul 2026Hacker News first sighting

Seen on 1 board over 9 days.