Software Engineer - Horizons Team

Anthropic is seeking a Senior Software Engineer to join their Horizons team, focusing on advancing AI capabilities and safety. This role combines cutting-edge AI research with robust engineering practices, working on large language models, reinforcement learning, and tool-use development. The position offers a competitive salary range of $280,000-$560,000 and requires 5+ years of experience.

The role involves building critical infrastructure for AI research, including data pipelines, distributed systems, and developer tools. You'll work in a collaborative environment where pair programming is valued, and your work will directly impact the development of safe and beneficial AI systems.

Anthropic stands out for its approach to AI research as "big science," operating as a cohesive team on large-scale research efforts. They value impact over smaller, specific puzzles and view AI research as an empirical science. The company offers excellent benefits, including visa sponsorship, flexible working hours, and generous leave policies.

The ideal candidate will bring strong Python programming skills, experience with distributed systems, and a passion for AI safety. While experience with LLMs or machine learning isn't required, strong software engineering fundamentals and communication skills are essential. The role is hybrid-based in San Francisco, requiring at least 25% office presence.

This is an opportunity to work at the forefront of AI development with a team committed to creating reliable, interpretable, and steerable AI systems. Anthropic encourages applications from diverse backgrounds, recognizing that representation is crucial in developing AI systems with significant social and ethical implications.