Founding AI Engineer @ - 20VC backed

As founding AI engineer, you'll have high agency to hone your skills with AI and solve hard real-world problems that bring delightful experiences to handly's partners. You will own AI products end to end, make the core product and technical decisions, and turn messy, real-world workflows into AI that does the work for partners.

What you'll do

• Quote generation: Turn voice notes, photos and documents from customers and architects into a six-figure quote, priced intelligently from the partner's own catalog.
• Measurements: Measure buildings from satellite imagery, drone footage and public building data, without a site visit.
• Back office in natural language: An MCP layer over the whole product, so partners can manage their back office in a chat.
• Email intelligence: Capture intelligence from email threads and attachments, automate communication with clients and suppliers, and aggressive anti-phishing and spam protection.
• Self-improving pipelines: Use every correction, edit and rejection to improve the next output.
• Evals: Build the evaluation sets and benchmarks that gate every AI feature before it ships.

What you'll need

• 4+ years of full-stack engineering experience (exceptions apply for exceptional engineers).
• You have shipped AI features that real users depend on, and continiously evolved them.
• Strong full-stack TypeScript comfortable across backend, web and mobile.
• Experience building evals, benchmarks and self-improving loops that automate research on AI capabilities.
• Strong prompt engineering: structured outputs, tool use, agents, and good judgment about when an LLM is the wrong tool.
• Comfortable with ambiguity. You lead your projects end to end and want to grow with the company.

Nice to have

• You have built your own fully functional AI side project.
• Creative about capturing data and context (transcripts, photos, documents, voice) to improve AI features.

What they offer

• Competitive compensation: €80–110k + 0.4–0.7% equity.
• Unlimited access to frontier models and custom software factory.
• Flat hierarchy with as much responsibility as you want.
• Minimal meetings: plannings and demo Fridays, no stand-ups.
• Modern, light-filled office in Berlin-Mitte with regular team outings.