Anthropic
Staff Software Engineer, Claude Code
$320K–$625K
San Francisco, CA +3 · Staff · Full-time · Posted Aug 7, 2026
- Location
- San Francisco, CA
New York City, NY
Seattle, WA
San Francisco, California, United States - Experience
- 6+ years of work experience; logistics also says required years correlate with internal job-level requirements.
- Education
- Bachelor’s degree or an equivalent combination of education, training, and/or experience; relevant field of study demonstrated through coursework, training, or professional experience.
- Visa sponsorship
- Visa sponsorship is available, but not guaranteed for every role or candidate; if an offer is made, Anthropic will make every reasonable effort to obtain a visa.
About the job
Build and maintain agentic coding tools and infrastructure, improving developer experience and collaborating with researchers on model capabilities and evaluations.
What you'll do
- Design, build, and maintain scalable features and infrastructure for AI-powered development tools.
- Gather developer feedback and collaborate with researchers on tools and evaluations to improve model capabilities.
- Develop features across the stack, fix bugs, optimize performance, and assess new AI-assisted coding techniques.
What they ask for
- Expert React development, including performance optimization, modern patterns, and component architecture.
- Hands-on experience with large language models and prompt engineering.
- Experience building and maintaining developer tools.
- 6+ years of work experience.
Nice to have
- Experience building and maintaining CLI tools, working in large codebases, or entering unfamiliar development environments.
- Experience with container orchestration, cloud infrastructure, scaling TypeScript projects, Bun, or Deno.
Pay
$320,000 — $625,000 USD (base salary)
Tools
React, Python, VS Code, TypeScript, Bun, Deno
AI focus
Build AI-powered agentic coding tools; work with LLM features and prompt engineering, and collaborate with researchers to improve model capabilities through tools and evaluations.
Model-written summary · the original posting is authoritative