# Staff+ Software Engineer, VectorDB at Anthropic

- Company: Anthropic
- What the company does: Anthropic is an AI safety and research company that's working to build reliable, interpretable, and steerable AI systems. Backed by Accel, Bessemer and General Catalyst.
- Company website: https://www.anthropic.com/
- Type: Startups (AI role)
- Level: Senior
- Location: New York City, NY | Seattle, WA; San Francisco, CA | New York City, NY | Seattle, WA
- Work setup: On-site
- Posted: 2026-10-20
- Apply by: 2026-12-04
- Apply: https://job-boards.greenhouse.io/anthropic/jobs/5458044008?utm_source=1752vc&utm_medium=careers
- Page: https://www.1752.vc/careers/jobs/anthropic-staff-software-engineer-vectordb/

## About the role

Anthropic is looking for a Staff+ Software Engineer to work on the vector search infrastructure behind Claude. Retrieval is how Claude learns about the world. Web search across claude.ai, the API and agentic surfaces, memory across conversations, and the reinforcement learning workloads that train our next models all depend on fast, cheap, high-recall nearest-neighbor search over billions of vectors. Found on 1752vc Careers, the job board for startup and VC roles.

## What they're looking for

- Direct experience building a vector database or approximate nearest-neighbor search system that ran in production at scale
- Deep knowledge of ANN index structures (graph-based, clustering-based or disk-resident approaches), vector quantization and filtered search
- Experience with search relevance and ranking
- Strong systems programming skills in a language such as Rust, C++ or Go, including performance-critical and memory-intensive code
- Experience designing and operating large-scale distributed storage or serving systems with strict latency and reliability requirements
- A track record of independently scoping and delivering ambiguous, multi-quarter technical projects

Tags: Software Engineering - Infrastructure

Source: 1752vc Careers, https://www.1752.vc/careers/jobs/anthropic-staff-software-engineer-vectordb/