Product Engineer, Mid-Level to Staff

About the Role Join a small team building AI-powered tools for strategic procurement. You will own product work end to end, turning complex spend, contract, and supplier data into useful workflows that help customers make better decisions. What You'll Do Work directly with customers to understand their needs and shape product direction. Build full-stack features, from data models and AI behavior to polished user interfaces. Create interfaces that let users guide AI agents, track progress, and approve actions. Learn from product usage and improve performance, reliability, and engineering workflows. What We're Looking For Experience levels range from mid-level to staff, with approximately 1 to 10 years of experience. Professional TypeScript experience across frontend and backend, plus strong foundations in frontend, backend, and databases. A track record of shipping software for real users and learning from its use in production. Experience working at a startup or small company, and the initiative to own features end to end. Clear communication and good product judgment, including the ability to review and verify AI-generated code. Experience with React or Next.js, PostgreSQL or Supabase, Vercel, and Python is relevant; familiarity with every technology is not required. B2B product experience, data visualization, and AI interface design are useful. Procurement experience is not required. Compensation & Benefits Annual salary: €90,000 to €140,000, with equity. Visa sponsorship is not available. Location Full-time, on-site in Berlin, Germany. Candidates should already be based in Berlin or be willing to relocate.