Reinforcement Learning Research Engineer — Scale AI Systems

Company: anthropic
Apply for the Reinforcement Learning Research Engineer — Scale AI Systems
Location: London
Job Description:

Anthropic is seeking a Research Engineer in Reinforcement Learning to collaborate with researchers and engineers to advance capabilities and safety of large language models. The role blends research and engineering, implementing novel approaches and shaping research directions, including agentic models via tool use for open-ended tasks and improving reasoning in mathematics.

You will architect RL infrastructure, design training environments, and accelerate AI research with scalable systems and

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Posted: October 21st, 2026