Security Engineer / Research Engineer, RL Security is open at Anthropic in San Francisco, CA | New York City, NY | Seattle, WA. The posting gives a salary of $320K - $405K. Posted on Oct 20, 2026, and still on Anthropic’s careers page when we last checked, on Nov 14, 2026.
About the role
Reinforcement learning is how Claude learns to reason, write code, and act autonomously over long horizons. At frontier scale, an RL run is a large distributed system: training, sampling, and environment execution run concurrently across a large fleet of accelerators and hosts. As an engineer in RL Engineering, you'll work on keeping that system secure as it scales. This is a hands-on engineering role. You'll work…
The opening lines of the posting. The rest is on Anthropic’s careers page.
Hiring at Anthropic
Anthropic has 669 open roles right now, 59 of them remote. Most are in Engineering, Sales & Business Development and Data & Research. The median advertised salary across its roles with a published range is $352K. See all its roles
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