Demo

Founding Full Stack Engineer

Floot (YC S25)
San Francisco, CA Full Time
POSTED ON 3/17/2026
AVAILABLE BEFORE 5/14/2026
About the role

As engineer #1, you will work directly with the founders to build the product and shape our culture. You’ll wear many hats and touch everything from AI systems, user-facing features, to backend infrastructure.

WHAT YOU’LL DO
  • Talk to users often to deeply understand how to improve Floot's AI and UX (you can expect to spend 10-20% of your time on support)
  • Ship full-stack features and build the foundational building blocks that users will use to build their apps seamlessly (e.g. storage, payments, auth, etc)
  • Improve our AI runtime to handle edge cases and make our agentic system more reliable
  • Prompt engineering and evals to improve AI output quality (for both function design)
  • Build robust infrastructure for our end-to-end platform to power millions of production apps
REQUIREMENTS
  • Strong full-stack experience with React, TypeScript, and Node.js: you've shipped production features end-to-end
  • Strong sense of ownership: you’re autonomous and own features from start to finish
  • Fast but thoughtful: you ship quickly without cutting corners on things that matter
  • Strong sense for UX and product polish: you believe that craft matters
About Floot

Floot is building the AI-first software foundation for non-coders to build and deploy full-stack web apps. We grew from 5 to 600 paying customers during YC! 🚀

Unlike other platforms that cobble together dev tools, we're rebuilding the entire software stack for a world where AI writes most of the code.

Our goal: Make Floot the default choice for anyone to build and ship software.

  • Our founders are staff engineers from Retool and AWS. Edward (CTO) bootstrapped his last SaaS company to $5M ARR in one year.

Salary : $5

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