Research Engineer, Machine Learning (Horizons)
AnthropicSan Francisco, California, United States • New York, New York, United States
Posted October 1, 2025
280000 - 425000 USD year
Full Time
About the Company
Anthropic is an AI research company focused on developing reliable, interpretable, and steerable AI systems. Their flagship product, Claude, is an AI assistant designed for tasks of any scale. The company's research encompasses natural language processing, human feedback mechanisms, scaling laws, reinforcement learning, code generation, and interpretability, setting them apart with a commitment to transparency and control in AI development.
Job Description
Anthropic is seeking a Research Engineer to contribute to their Horizons team. The role focuses on advancing reinforcement learning, specifically agentic models and improving reasoning abilities. This involves building infrastructure, designing training environments, and driving performance improvements across the stack. The team's mission is to create reliable and beneficial AI systems.
Requirements
- Proficient in Python and async/concurrent programming with frameworks like Trio
- Experience with machine learning frameworks (PyTorch, TensorFlow, JAX)
- Experience with reinforcement learning techniques and environments
- Strong systems design and communication skills
- Passion for the potential impact of AI
- Strong candidate may have experience with LLM architectures
- Strong candidate may have: Familiarity with LLM architectures
- Experience with virtualization and sandboxed code execution environments
- Experience with Kubernetes
- Experience with distributed systems or high-performance computing
- Experience with Rust and/or C++
Benefits
- Equity
- Benefits
- Flexible working hours
- Office space
- Parental leave
- Generous vacation