Research Engineer, Machine Learning (Reinforcement Learning) at Anthropic

Anthropic is hiring a Research Engineer, Reinforcement Learning to blend research and engineering work on large language models. The role focuses on agentic models using tool use, computer use, autonomous software generation, reasoning, training environments, evaluations, infrastructure, distributed systems, profiling, optimization, and automated testing. Candidates should be proficient in Python and async programming, have machine learning framework experience, and bring industry machine learning research experience. The position offers a hybrid arrangement requiring office presence at least 25% of the time, visa sponsorship may be available, and an annual salary of £260,000–£630,000 GBP.