Site Reliability Engineer, RL Infra

What Thinking Machines Lab says about it

ABOUT THINKING MACHINES The mission of Thinking Machines is to build AI that extends human will and judgment. We are training frontier models with Inkling, developing Tinker to let people make models their own, and crafting interfaces that broaden human-AI communication. We believe the future worth building is human, and we're hiring people who want to build it. ABOUT THE ROLE We're looking for a Site Reliability Engineer (SRE) to drive reliability for RL Infra end-to-end. RL training is unlike a typical batch training job: it interleaves rollout generation, environment or tool interactions, reward scoring, and policy weight updates in a continuous loop, often across long-tailed trajectories with unpredictable latency. Keeping this loop healthy — and keeping it healthy for many concurrent tenants sharing the same underlying clusters — is the core of this role.

The opening of the posting. Read it on Thinking Machines Lab’s own board →