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Research Engineer, Pretraining Scaling - London

About Anthropic Anthropic’s mission is to create reliable, interpretable, and steerable AI systems. We want AI to be safe and beneficial for our users and for society as a whole. Our team is a quickly growing group of committed researchers,

Company

Anthropic

Location

London, UK

Status

Open

Posted

2025-09-30T20:38:17+00:00

Anthropic's ML Performance and Scaling team is hiring a research engineer to keep its production pretrained models training reliably at scale. The work spans performance optimization, hardware and networking debugging, experiment design, observability, evaluation infrastructure and launch coordination, with on-call incident response during launches. Candidates should have hands-on large language model training experience or deep JAX, TPU, PyTorch or distributed-systems expertise, and be comfortable with an even split between research and engineering. The role is in-office five days a week in London.