Full-Stack Engineer (Founding Team)

Join a small, high-conviction founding team building an AI-powered project management platform for the construction industry. As one of the first engineers, you will own the product technically from day one - partnering directly with the founders to build a category-defining platform that automates documentation, workflow management, decision tracking, and risk analysis for construction projects.

This is a high-ownership, high-impact role where you will work across the full stack, from data models and backend systems to polished, responsive user interfaces, with your code shipping to real customers in days.

Note: German language fluency is a hard requirement for this role.

What You’ll Do

• Build customer-facing features end-to-end, from database design through beautiful, responsive frontends.
• Design robust, scalable systems capable of handling complex workflows and large, real-world datasets.
• Operate in a high-velocity environment where ideas move to production in days, not months.
• Work with complex construction-industry data and build sophisticated, automated workflows.
• Contribute directly to product direction and technical architecture alongside the founding team.

Required:

• Fluent German speaker (hard requirement).
• Strong proficiency in TypeScript and Next.js for full-stack development.
• Hands-on experience with PostgreSQL and Supabase, including vector data.
• Familiarity with LangChain, TanStack Query, and shadcn UI for building UIs and AI-driven data workflows.
• Stable work history - preference for roles lasting 12+ months (internships excluded).
• Ability to take end-to-end ownership of features and directly impact customer outcomes.

Nice to Have:

• Experience building and shipping scalable applications in an early-stage startup environment.
• Background or domain interest in construction, real estate, or project management tooling.
• University degree in Computer Science or a related field (valued, not required).
• Collaborative mindset with comfort working closely with founders and shaping product decisions.

Tech Stack: TypeScript · Next.js · Supabase (PostgreSQL + vectors) · LangChain · TanStack Query · shadcn UI · Vercel

• Salary: $70,000 - $90,000 USD annually (or local equivalent).
• Early-stage equity participation.
• Direct influence over product and technical strategy as a founding-team engineer.
• Visa sponsorship is not available for this role.