Job description
Founding Full-Stack Engineer (AI-Focused)
About the Role
We are looking for a Founding Full-Stack Engineer with strong expertise in TypeScript, React, and AI/LLM integration to join our early-stage team. You will play a critical role in shaping the product, working closely with the founders, and helping define the technical direction of our platform.
This is a unique opportunity to join at the ground floor, take full ownership of core features, and directly influence both the product and company culture.
Key Responsibilities
- Build and scale full-stack applications using TypeScript + React
- Design, implement, and evaluate AI/LLM pipelines (RAG, document ingestion, information extraction, evaluation systems)
- Contribute to backend development using serverless frameworks (Convex or similar)
- Collaborate directly with founders on product strategy and technical decisions
- Work closely with users: join calls, gather feedback, and rapidly translate insights into features
- Help establish engineering best practices and processes in a fast-paced startup environment
Requirements / Qualifications
- 5+ years of experience as a Full-Stack Engineer
- Strong skills in TypeScript, React, and modern frontend frameworks
- Experience integrating LLMs/AI systems (RAG pipelines, vector databases, LangChain, etc.)
- Hands-on backend development experience (Convex, Firebase, Supabase, or similar)
- Comfortable working in a startup setting with high ownership and autonomy
- Excellent communication skills and willingness to engage with users directly
- Based in Germany (Berlin preferred) or willing to relocate; hybrid/remote possible after onboarding
Nice to Have
- Experience with Tailwind, Shadcn, or similar UI frameworks
- Previous experience as a founding engineer or early-stage startup contributor
Location
Berlin, Germany
Employment Type
Full time
