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SWE Intern

Stack Auth

Salary not specified
Aug 28, 2025
San Francisco, CA, US
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Stack Auth is looking for an intern to help build tools for hackers, builders, and founders, contributing to their open-source customer platform that handles authentication, payments, customer support, analytics, and marketing emails.

Requirements

  • Skills: TypeScript

Responsibilities

  • Want to build tools for hackers, builders, and founders, and join us at our hacker house this summer?
  • We build everything that's between the developer and the user — that's authentication, payments, customer support, analytics, marketing emails, and so much more.
  • We are building on TypeScript, Next.js and PostgreSQL.
  • Stack Auth is 100% open-source and self-hostable.
  • Auth is a very complicated problem to tackle; we spend lots of time making sure our SDK, REST APIs, and database schemas are as clean as they can be.
  • In order to remain lean despite pushing out new features every day, we automate wherever possible.
  • For example, we use AI to test our frontends and our own snapshot test framework on the backend; also, we use LLMs to automate documentation gruntwork.

Other

  • Internship
  • US citizen/visa only
  • We're based in a hacker house in San Francisco.
  • We're a small & agile team of builds who value intellectual curiosity over anything else — if that resonates, we should chat.
  • If you're applying, please read this and you'll already be ahead of 80% of applicants: