Full-Stack Software Engineer

ABOUT THE ROLE This is a full-stack engineering role at an early-stage enterprise AI platform, where you will own features end-to-end and have a direct hand in shaping product and architecture decisions. You will work across the full stack, from backend APIs and database design to frontend integration, on a product that helps organizations roll out AI safely and at scale. WHAT YOU'LL DO - Design and implement robust backend systems and APIs to power an AI platform built on Node.js. - Build end-to-end solutions spanning backend logic, database layers, and frontend integration. - Develop and optimize database schemas, queries, and data models for performance and scalability. - Implement API endpoints and integrate with third-party services and AI/ML providers. - Collaborate on technical architecture decisions and system design with the wider engineering team. - Maintain and improve the codebase for reliability, performance, and long-term maintainability. - Participate in regular support engineer rotations, assisting customers and the customer support team. WHAT WE'RE LOOKING FOR - 3 or more years of full-stack web development experience, with genuine depth on both frontend and backend. - Strong, hands-on TypeScript proficiency across the full stack (this is a firm requirement). - Solid experience with Node.js, React/Next.js, and Tailwind CSS. - Proficiency with PostgreSQL: data modeling, querying, and query optimization. - Experience owning features from conception through to production deployment. - Experience building AI-powered features or integrating AI/ML services into applications. - Strong CS fundamentals and system design instincts. - Clear communication and collaboration skills, comfortable working closely with product leadership. - Willingness to participate in customer-facing support engineer rotations. COMPENSATION & BENEFITS Salary range: 66,000 to 120,000 EUR annually. Visa sponsorship is available for candidates relocating to Berlin. LOCATION On-site in Berlin, Germany. This is not a remote role.