Staff Software Engineer Search

AI safety and research company building reliable, interpretable, and steerable AI systems, including the Claude product family and developer platform.

Series F+Recently funded0 current maintainers0 active leadsTeam intelligence

Maintainer signals as of 9/23/2026

San Francisco, United States
About Anthropic

Anthropic PBC develops frontier AI systems and deploys them through Claude products and the Claude Platform, with a stated focus on safety, interpretability, and steerability.

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Skills

Candidate Availability

Required and preferred rules are kept separate and reflect the wording in the original posting.

About the Role

You will design and implement core search systems from the ground up. You will establish metrics and tooling to evaluate search quality, improve search algorithms and indexing mechanisms, and increase search accuracy and efficiency for information retrieval.

Requirements

  • 5+ years building complex distributed systems in production
  • Knowledge of indexing, retrieval, and ranking
  • Coding skills in Python, Go, Java, or similar languages
  • Experience with high-volume data processing architectures

Responsibilities

  • Build the search platform from scratch
  • Establish metrics and tooling to measure and improve search quality
  • Enhance search algorithms and indexing mechanisms

Benefits

  • Visa sponsorship support
  • Optional equity donation matching
  • Generous vacation
  • Parental leave
  • Flexible working hours