Backend Engineer

Exa is building a search engine from scratch to serve every AI application. We build massive-scale infrastructure to crawl the web, train state-of-the-art embedding models to index it, and develop super high performant vector databases in rust to search over it. We also own a $5m H200 GPU cluster and routinely run batchjobs with 10s of thousands of machines. This isn't your average startup :)

As a backend engineer, you'd play a critical role in lots of our backend systems. We're pretty flexible on what projects people work on based on their skills and interests.

Desired Experience

• You have experience with some high performance language (C++, rust, etc.)

• You’re comfortable optimizing the crap out of a system

• You care about the problem of finding high quality information and recognize how important this is for the world

Example Projects

• Recreate google-level keyword search over 10 billion pages in 1 month

• Build a state-of-the-art crawling system that works optimally for any website

• Build a custom vector database that runs over a billion vectors in under 100ms

This is an in-person opportunity in San Francisco. We're happy to sponsor international candidates (e.g., STEM OPT, OPT, H1B, O1, E3).