Research Engineer / Scientist - Reinforcement Learning is open at PrimeIntellect in San Francisco. The posting gives no salary; similar roles in the United States advertise a median of $172K. Posted on Oct 16, 2026, and still on PrimeIntellect’s careers page when we last checked, on Nov 14, 2026.
About the role
Algorithm research - Develop and test RL methods for reasoning, coding, and long-horizon tasks, including changes to training objectives and policy optimization. - Investigate stability in asynchronous RL, including policy staleness, trainer/sampler mismatch, and numerical differences between training and rollouts. - Work with data and evaluation researchers to understand how task selection, rewards, and training…
The opening lines of the posting. The rest is on PrimeIntellect’s careers page.
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