Research Engineer, Machine Learning (Reinforcement Learning)

We're looking for a Research Engineer in Reinforcement Learning to advance the capabilities and safety of large language models. As a Research Engineer, you'll collaborate with a diverse group of researchers and engineers to design, implement, and test novel training environments, evaluations, and methodologies for reinforcement learning agents. You'll also work on architecting and optimizing core reinforcement learning infrastructure, driving performance improvements across our stack, and collaborating across research and engineering teams to develop automated testing frameworks and build scalable infrastructure.

Requirements

• Proficient in Python and async/concurrent programming with frameworks like Trio
• Experience with machine learning frameworks (PyTorch, TensorFlow, JAX)
• Industry experience in machine learning research
• Balance research exploration with engineering implementation
• Strong systems design and communication skills

Benefits

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