Founding Engineer M/F/X - Build autonomous companies.

Twin is the AI company builder. Anyone can describe a business goal in plain English — our platform designs, builds and operates AI agents that execute work end-to-end, using APIs when they exist and browsers when they don’t. Our agents don’t just answer questions: they browse websites, call APIs, recover from failures, remember what matters, and become cheaper and more reliable over time. Over 70,000 businesses already run real workflows on Twin every day.

We're a small team of repeat founders and senior engineers based in Paris. We've raised a $10M Seed led by LocalGlobe and are building one of the most ambitious AI infrastructure companies in Europe.

Job Description

Most AI companies build copilots. We’re building autonomous systems that run real businesses — and you’ll build the core systems behind them. Your work will span the entire product, from low-level Rust infrastructure to user-facing experiences.

Typical Projects Include

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