Company
The motion layer for a generation of robots.
ArenaLabs is the product line of Apocynthion Inc., based in California. We hire deliberately and ship in public.
Mission
Humanoid robots will need a cerebellum. We are building it.
The robotics industry is racing to build a cortex — vision-language-action models that plan tasks, talk to humans, and reason about the world. None of that matters if the body cannot move. ArenaLabs builds the layer underneath: a motion foundation model that gives any humanoid full-body motor intelligence out of the box, decoupled from the brain stack above it and the hardware below.
Open roles
Small senior team. Hiring now.
We are hiring to ship the foundation model by Q4 2026. No junior hires this cycle. Equity is meaningful. Compensation is competitive with senior FAANG bands plus a frontier-lab bonus pool. Below-market base with above-market equity is on the table for the right person.
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Research Engineer — Motion
Own a pillar of the motion foundation model. PyTorch, distributed training, ablation discipline. You have published or shipped at the level of AMASS / Motion-X / SMPL-H / MotionBERT / BeyondMimic — or are obviously about to.
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ML Systems Engineer
Make 128×H100 sing. Megatron / FSDP / TransformerEngine, profilers, kernel-level intuition. You have measured wall-clock on a real cluster, not just a tutorial notebook.
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Robotics Integration Engineer
Get the motion foundation model onto real hardware. Unitree G1, custom humanoid OEMs. ROS2, real-time control, motion retargeting, sim-to-real. The bridge between the model and the robot.
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Founding Designer
Own the visual surface — Studio UI, website, deck, product film. McLaren-papaya cinematic. The discipline of saying no. Portfolio first, resume second.