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Software Engineer 3, Vector Search (Atlas) | Hybrid

Vector search Backend performance optimization MongoDB aggregation

About the Role

Join our Vector Search team to help build a high-performance vector database powered by MongoDB. You’ll work on the syntax and implementation behind MongoDB’s $vectorSearch aggregation, enabling fast approximate nearest-neighbor queries for high-dimensional vectors.

This is an opportunity to make a visible impact as we scale search to billions of vectors. Performance and thoughtful engineering are at the core of what we do.

Responsibilities

  • Implement new capabilities in MongoDB’s $search and $vectorSearch aggregation operators
  • Partner with Product teams to define query and index syntax for new search experiences
  • Analyze and resolve performance bottlenecks, especially in filter-heavy query paths

Requirements

  • Strong software engineering skills with experience building and optimizing backend systems
  • Experience working with search, indexing, query execution, or performance tuning
  • Comfort collaborating across teams to translate product goals into technical solutions

Benefits

  • Hybrid work model based in San Francisco
  • Work with a small team delivering large-scale impact for a growing customer base
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Posted on July 16, 2026
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