← All roles

Staff+ Research Engineer, RL Data Platform

Anthropic· AI Research & Engineering
Apply on company site
Hybrid (SF), Hybrid (NYC)$500k - $850kFull-timePosted 1mo ago

About the role

Staff+ level role on Anthropic's RL Data Platform team responsible for building and operating the systems that produce, move, and serve human feedback data for RL training. Full-stack ownership including web interfaces for annotators, backend services, data pipelines, and researcher tooling with end-to-end project ownership and collaboration with RL researchers.

Responsibilities

  • Design, build, and operate the feedback and data collection interfaces used by human annotators, domain experts, and internal researchers.
  • Build and maintain the backend services, APIs, and pipelines that route model samples to humans and return structured feedback to training.
  • Own the reliability, latency, and usability of systems that run continuously against live model endpoints.
  • Partner with RL researchers to translate loosely specified data needs into well-scoped collection campaigns and the tooling to run them.
  • Build dashboards, monitoring, and inspection tools so researchers can see data quality and throughput without asking an engineer.
  • Identify and remove the bottlenecks between "we want this data" and "it's in the training mix".

Qualifications

  • Strong full-stack engineering skills, with production experience in TypeScript/React on the frontend and Python on the backend.
  • Experience designing and operating backend services and data pipelines that other teams depend on.
  • A track record of owning projects end-to-end, from an ambiguous brief to something in production that people use.
  • Comfort working directly with technical stakeholders whose needs change week to week, and the judgment to push back when something isn't worth building.
  • Effective use of AI tools in your own day-to-day work.
  • Care about the societal impacts of your work.

Skills

Required:Full-stack software engineeringTypeScript/ReactPythonBackend service design and operation

Benefits

  • Competitive compensation and benefits, optional equity donation matching, generous vacation and parental leave, flexible working hours, and a lovely office space.
Last updated Sep 2, 2026. Interested? Apply on the company site.

About Anthropic

building reliable, interpretable, and steerable AI systems

Anthropic is an AI safety and research company that's working to build reliable, interpretable, and steerable AI systems.

ai-infrastructure-and-developmentliquid-ai-recruiting-targetsetter-30setter-30-2026-q1wing-list-2026wing-list-2026-giga-stage
Company profileWebsite

More open roles at Anthropic