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Full Stack Engineer

Usul (Yc S24)

Usul (Yc S24)

Software Engineering
San Francisco, CA, USA
USD 160k-220k / year + Equity
Posted on Feb 25, 2026

Usul

AI Platform for Winning Defense & Government Contracts

Full Stack Engineer

$160K - $220K0.10% - 0.50%San Francisco, CA, US
Job type
Full-time
Role
Engineering, Full stack
Experience
Any (new grads ok)
Visa
US citizen/visa only
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Joonghyun Lee
Founder
Joonghyun Lee
Founder

About the role

The government puts out a firehose of data every day, outlining what they bought and the capabilities they want to buy. You will be our Full Stack Engineer for building the pipeline to make this data useful, as well as talking to our users to see what’s the best way to browse and interpret this data.

Who we're looking for

  • Knows how to build AI Agents and utilize LLMs effectively
  • Has confidence to present to (and get roasted by) our customers
  • Works in-person at our San Francisco office
  • Has passion for solving mission-critical national security problems
  • Builds intuitive UIs with React & NextJS
  • Is willing to learn and iterate quickly

About the interview

  • 15-minute screening with Joon (CTO)
  • 15-minute Culture Fit Interview with Oliver (CPO) / Jarren (CEO)
  • 3-hour Technical Interview with Joon (CTO)
  • On-site at San Francisco
  • Offer!

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About Usul

Usul helps companies win government contracts in 60+ nations. Our goal is to build a global marketplace for governments to buy products and services quickly across Defense, Energy, IT and Healthcare.

We're backed by top defense investors and serving Fortune 500s, the US government and NATO as customers.