Research Engineer, RL Engineering
Anthropic · San Francisco, CA | New York City, NY | Seattle
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- Company
- Anthropic
- Location
- San Francisco, CA | New York City, NY | Seattle
- Salary
- $500,000 — $850,000
- Posted
- October 15, 2025
About this job
About the role Reinforcement learning (RL) is how Claude learns to reason, write code, and act autonomously over long horizons. This role sits on the team that builds and owns the RL training system: the system that trains our production models and that researchers across Anthropic run their experiments on. The team works closely with research teams across the company on the science and engineering of making RL work at scale. As a Research Engineer on the team, you'll work at the center of RL at Anthropic. You'll have a direct view of how RL training behaves at the frontier because the system you own sits underneath both production and research runs. ou willl use it with collaborators across research teams to understand what is working, what is fragile, and where the next improvements are.…
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