Founding Engineer
Engineering · Europe · Full-time
Darcy is an AI agent that plans the event, books the vendors, manages the guests, and optimises the budget. We started in June 2026, are backed by Project Europe, and already have live clients ahead of our beta launch in September.
This role leans backend: the systems, data and infrastructure the product runs on. Tech stack: TypeScript, Next.js (App Router), PostgreSQL, Vercel, voice agents, LLM and email APIs.
You own
- Core product features across the stack, from data models and APIs to the voice, LLM and email integrations.
- Features end to end: you scope them, build them, and keep them running once they're live.
- Accounts, permissions, and the infrastructure we'll need as we grow.
- The judgment calls about when to hack something together and when to build it properly.
- The bar for testing, reliability and security.
You'll fit if
- You build with coding agents and still know what's in the codebase.
- You've spent a few years building backend systems and keeping them running.
- TypeScript and Postgres are what we use. If you're coming from Python, Go or Ruby, that's fine.
- You've worked with webhooks, third-party APIs, background jobs and email that reaches real people, including the times they fired twice or died halfway.
- You can look at a change and tell whether it holds up at ten times the load.
- You care how the product feels to use, even when you're working on the backend.
- You're curious about new tech, know what solutions already exist, and are good at turning both into an advantage.
- You're independent. Nobody here will be checking your work daily or breaking tasks down for you, and that's exactly how you like it.
Whether you're a new graduate with impressive projects or an experienced engineer, we want to hear from you.
Experience in events or hospitality is not required. A willingness to learn the domain deeply is.
Bonus: early-stage startup experience somewhere you owned production; multi-tenant auth and permissions built from scratch; anything with real-world side effects, like payments, bookings, logistics or messaging.