Research Engineer, Machine Learning (RL Velocity)

As a Research Engineer on the RL Velocity team, you'll build and improve the core platform that underpins how we do RL at Anthropic, removing bottlenecks that slow down research and making it easier for the broader org to ship better models faster. This is high-leverage work: small improvements to velocity compound across every researcher and every run.

Requirements

• Strong software engineering fundamentals and a track record of building performant, reliable systems
• Experience with large-scale distributed training (RL, pre-training, or post-training)
• Familiarity with JAX, PyTorch, or similar ML frameworks

Benefits

• Competitive compensation
• Benefits
• Optional equity donation matching
• Generous vacation and parental leave
• Flexible working hours
• Lovely office space