Software Engineer, Tokens and Prompt Structures

Role

This role involves maintaining and improving encoding libraries and prompt structures for Claude, requiring ownership of APIs and abstractions across the codebase. Candidates need 5+ years of software engineering experience, familiarity with ML terminology, and strong communication skills to collaborate with researchers.

Location: San Francisco, CA | New York City, NY
Employment: full time
Work pattern: hybrid
Seniority: mid

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Source and currency

This vacancy came from the organization’s official Greenhouse feed. Source update: 2026-09-16T10:12:43-04:00. Check the employer’s page for the complete description, current availability and application terms.

• job-boards.greenhouse.io/anthropic/jobs/5421263008 ↗

Anthropic RESEARCH PROFILE ↗