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Research Engineer, Machine Learning (Reinforcement Learning)Anthropic • London, England, United Kingdom
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Research Engineer, Machine Learning (Reinforcement Learning)

Anthropic
  • GB
    London, England, United Kingdom
  • GB
    London, England, United Kingdom
Apply Now

About

About Anthropic Anthropic’s mission is to create reliable, interpretable, and steerable AI systems that are safe and beneficial for users and society.
About the Role As a Research Engineer within Reinforcement Learning, you will collaborate with researchers and engineers to advance the capabilities and safety of large language models. The role blends research and engineering: implement novel approaches while contributing to research direction.
Representative Projects
Architect and optimize core reinforcement learning infrastructure, including training abstractions and distributed experiment management across GPU clusters.
Design, implement, and test novel training environments, evaluations, and methodologies for reinforcement learning agents.
Drive performance improvements through profiling, optimization, and benchmarking; implement efficient caching and debug distributed systems.
Collaborate with research and engineering teams to develop automated testing frameworks, clean APIs, and scalable infrastructure.
You May Be a Good Fit If
Proficient in Python and async/concurrent programming frameworks like Trio.
Experience with machine‑learning frameworks (PyTorch, TensorFlow, JAX).
Industry experience in ML research.
Can balance research exploration with engineering implementation.
Enjoy pair programming.
Care about code quality, testing, and performance.
Strong systems design and communication skills.
Passionate about AI impact and committed to safe and beneficial systems.
Strong Candidates May Also Have
Familiarity with LLM architectures and training methodologies.
Experience with reinforcement learning techniques and environments.
Experience with virtualization and sandboxed code execution environments.
Experience with Kubernetes.
Experience with distributed systems or high‑performance computing.
Experience with Rust or C++.
Strong Candidates Do Not Need
Formal certifications or specific education credentials.
Academic research experience or publication history.
Logistics
Annual Salary:
£260,000–£630,000 GBP.
Minimum education:
Bachelor’s degree or equivalent.
Required field of study:
Relevant to the role.
Minimum years of experience:
Depends on internal level.
Location‑based hybrid policy:
Staff should be in office at least 25% of time.
Visa sponsorship:
We sponsor visas when possible.
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  • London, England, United Kingdom

Languages

  • English
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