Founding Product Engineer

• Production experience shipping TypeScript, React, and Next.js applications.
• Strong product design ability in Figma, including user flows and high-fidelity UI.
• At least one shipped product or feature where you owned both design and frontend implementation.
• Ability to move independently from an unclear idea to a tested, working interface.
• Solid frontend fundamentals: component architecture, responsive layout, accessibility, API state handling, and performance.
• Experience making product decisions rather than only implementing tickets or finished designs.
• A portfolio, live product, or code sample that clearly shows your design and engineering contribution.
• Fluent Polish for daily team communication.
• Availability to work on-site in Warsaw five days per week.

Own product design and frontend from first idea to launch, building clear, polished AI-agent experiences with the founder in Warsaw.

Build a personal AI agent from first concept to shipped product. You will own product design and frontend implementation across web and iOS, working directly with the founder and a small technical team in Warsaw.

This is a 0-to-1 role. You will define how users interact with an AI agent, design the product experience, and build the interfaces yourself. The product is not fully specified, so you will make product decisions, test quickly, and ship working versions.