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Jupskill

Backend Software Engineer

Exa Labs · San Francisco, CA

On-siteFull-timeSponsors visa$180k–$350k/yr
Raised $247M in Sep 2026Posted Jun 26, 2025
Apply now ↗

Backend engineer on Exa's search architecture, building massive-scale systems for web crawling, data processing and retrieval. Projects are flexible based on skills and interests, such as keyword search over billions of pages, crawlers and custom vector databases.

What you'll do

  • Build and maintain high throughput, low latency search systems
  • Build data processing pipelines handling millions of documents per day
  • Optimize systems for performance
  • Work on crawling, keyword search and vector database projects

Requirements

  • Experience writing and maintaining high throughput, low latency systems
  • Ability to build data pipelines processing millions of documents per day
  • Comfortable optimizing systems to an exceptional degree
  • Care about finding high quality information

Nice to have

  • Experience in a high performance language (C++, Rust, etc.)

Benefits

  • Premium healthcare (medical, dental, vision)
  • Fertility benefits
  • 16 weeks fully paid parental leave
  • Monthly wellness stipend
  • Visa sponsorship

Skills

C++Data PipelinesDistributed SystemsRust

Outlined skills are listed as required.

Full original description

Exa is an applied AI lab building a search engine unlike the world has ever seen. We build massive-scale infra to crawl the entire web, train state-of-the-art embedding models to process it, and design super high performant vector databases to retrieve over it. We now power search for Cursor, Cognition, HubSpot, and over 400,000 developers and have raised $350m from Lightspeed, Benchmark, and a16z.

 

Our ultimate goal is to build perfect search over all the world's information, far beyond Google. If you want to build massive-scale ML systems that will define the way the new AI world consumes information, this is the place for you.

 

As a backend engineer, you'd play a critical role in our search architecture. 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

Logistics

  • Location: This is an in-person opportunity in San Francisco.

  • Visas: We're happy to sponsor international candidates (e.g., STEM OPT, OPT, H1B, O1, E3). While we cannot guarantee your visa, we have historically been successful in sponsoring candidates from all over the world. If you receive an offer, our team will work hard to get you a visa.

  • Benefits: We offer premium healthcare benefits (medical, dental, vision), fertility benefits, 16 weeks of fully paid parental leave for all new parents, and a monthly wellness stipend to all of our employees.

Exa is an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to race, creed, color, religion, sex, sexual orientation, gender identity or expression, national origin, disability, age, veteran status, marital status, pregnancy or related conditions, criminal histories consistent with applicable law, or any other basis protected by applicable law.

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