Exa is building a search engine from scratch to serve every AI agent. We build massive-scale infrastructure to crawl the web, train state-of-the-art embedding models to process it, and design super high performant vector databases in rust to search over it. If you like compute, we also own a $5M H200 GPU cluster (and soon 5x'ing that) and regularly spin up batchjobs with tens of thousands of machines.

We recently raised an $85M Series B from Benchmark, and we are rapidly building the most intelligent search engine in history. We're high agency, low-ego, and united by the feeling that this is one of the last problems worth getting right.

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

Desired Experience

- You have experience writing and maintaining high throughput, low latency systems

- You can build data processing pipelines that deal with millions of documents per day

- You're comfortable optimizing a system to an exceptional degree

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

- Plus: Experience in some high performance language (C++, Rust, etc.)

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). In addition to premium healthcare benefits (medical, dental, vision), we also offer fertility benefits and a monthly wellness stipend to all of our employees.