Staff+ Software Engineer – RL Data Platform

About the role

Anthropic’s RL Data Platform team builds the systems that collect, process, and serve the human feedback that powers Claude. As a Staff+ Software Engineer you will own end‑to‑end development of web interfaces, backend services, and data pipelines that enable researchers to turn new data ideas into training signals within days.

Key responsibilities

• Design, build, and operate feedback and data‑collection interfaces used by annotators, domain experts, and internal researchers.
• Develop and maintain backend services, APIs, and pipelines that route model samples to humans and return structured feedback for training.
• Ensure reliability, low latency, and high usability of systems that run continuously against live model endpoints.
• Partner with RL researchers to translate loosely defined data needs into scoped collection campaigns and tooling.
• Create dashboards, monitoring, and inspection tools so researchers can assess data quality and throughput without engineering assistance.
• Identify and eliminate bottlenecks between data request and inclusion in the training mix.

Required profile

• Strong full‑stack engineering experience with production‑grade TypeScript/React front‑end and Python back‑end.
• Proven ability to design, operate, and scale backend services and data pipelines used by multiple teams.
• Track record of owning projects from ambiguous briefs to production‑ready releases.
• Comfort working directly with technical stakeholders whose needs evolve rapidly, and the judgment to push back when necessary.
• Commitment to the societal impact of AI systems.

Required skills

• TypeScript
• React
• Python
• Backend services development
• Data pipeline engineering
• API design