Research Engineer, Machine Learning (Reinforcement Learning)

Visa sponsorship: Anthropic says on this job page "We do sponsor visas!", adding that it cannot sponsor every role and candidate but will make every reasonable effort if it makes an offer.

Anthropic, the AI safety and research company behind Claude, is hiring a Research Engineer for its Reinforcement Learning teams in London. The role mixes research and engineering: building and improving AI models that can use tools, write software and reason better.

What you'll do:

• Build and optimise core reinforcement learning infrastructure across GPU clusters
• Design and test new training environments and evaluations
• Profile, benchmark and speed up training and evaluation systems
• Work with research and engineering teams on testing frameworks, APIs and scalable infrastructure

What they ask for: strong Python including async/concurrent programming, experience with ML frameworks such as PyTorch or JAX, industry ML research experience, good systems design and communication skills, and care for code quality. Formal certifications or publications are not required.

Annual salary £260,000 - £630,000. Applications are reviewed on a rolling basis.

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Apply directly on Anthropic's website using the button on this page.