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Model Performance Software Engineer, Claude Code

Anthropic · San Francisco, CA | New York City, NY

Model Performance Software Engineer, Claude Code is open at Anthropic in San Francisco, CA | New York City, NY. The posting gives a salary of $405K - $485K. Posted on Feb 2, 2026, and still on Anthropic’s careers page when we last checked, on Nov 14, 2026.

About the role

We're looking for a Staff Software Engineer to set technical direction at the intersection of engineering and research on the Claude Code team. In this role, you'll partner directly with Anthropic's researchers and engineering leadership to shape how we measure, understand, and improve Claude's coding capabilities. You'll architect the systems, tooling, and evaluation infrastructure that determine how quickly our…

The opening lines of the posting. The rest is on Anthropic’s careers page.

Hiring at Anthropic

Anthropic has 669 open roles right now, 59 of them remote. Most are in Engineering, Sales & Business Development and Data & Research. The median advertised salary across its roles with a published range is $352K. See all its roles

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