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Software, SaaS, Communication

Founding Full-Stack Engineer

San Francisco, California, United StatesOnsiteFull Time$150,000–$220,000 /yrPosted 1 month agoHidden Gem · YC Startup

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Role summary

As the founding full-stack engineer, you will be the first technical hire, working directly with the founders to build the product and shape the company culture. You will be responsible for shipping full-stack features, improving AI systems and runtime, and building robust backend infrastructure. This role requires strong experience with React, TypeScript, and Node.js, a deep understanding of AI systems and prompt engineering, and a strong sense of ownership and product polish.

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
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