Member of Technical Staff, Post-Training, RL Infra is open at Mirendil in San Francisco. The posting gives a salary of $300K - $400K. Posted on Jun 24, 2026, and still on Mirendil’s careers page when we last checked, on Nov 14, 2026.
About the role
We are looking for engineers to help build the post-training stack for frontier reasoning models. This role sits at the intersection of research and infrastructure. You will work to push the scale of our RL stack, whether it is novel recipe ideas, reliability, or performance. Some example areas you might work on (not limited to): - Design and build reliable infrastructure for large-scale RL training - Implement…
The opening lines of the posting. The rest is on Mirendil’s careers page.
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