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Full-Stack Software Engineer, Reinforcement Learning

Anthropic — Application Software · Artificial Intelligence (AI) · Business/Productivity Software

San Francisco, CA | New York City, NY Mid Posted Apr 14, 2026
TypeScriptPythonReactREST/APIsCloudFull-StackFrontendBackendAI/LLMML
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About the role

About Anthropic Anthropic’s mission is to create reliable, interpretable, and steerable AI systems. We want AI to be safe and beneficial for our users and for society as a whole. Our team is a quickly growing group of committed…

What the index says about this role

  • First seen by JobLarper — Aug 2, 2026, 76 days ago. Older postings collect hundreds of applicants — a tailored résumé matters more the longer a role has been live.
  • No pay range in our index for this listing. Across 171 indexed Full Stack Engineer roles in US that do publish one, the middle half sits between $200k and $326k, median $230k — JobLarper's read of the market, not a figure from Anthropic.
  • What Full Stack Engineer roles ask for — across 778 indexed openings: Full-Stack (100%), Frontend (66%), Backend (65%), React (62%), REST/APIs (52%). This posting names Full-Stack, Frontend, Backend, React, REST/APIs, TypeScript.
  • Anthropic is hiring actively — 336 open roles indexed, 59 first appeared in the last 30 days.

Derived from the 28,483 roles JobLarper indexes daily from official company boards — not from the job description above.

⚡ JobLarper watched this role appear on Anthropic's official board on Apr 14, 2026. Sign up free to get alerted minutes after roles like this go live, and tailor your real résumé to the exact description — nothing invented.

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