Full-Stack Software Engineer

About the Role

A fast-growing, seed-stage enterprise AI platform startup based in Berlin is looking for a Full-Stack Software Engineer to join their small, high-impact engineering team. Founded in 2023 and backed by prominent European and international investors, the company builds a comprehensive, security-first platform that helps organizations adopt and integrate generative AI across their entire operations — including chat, workflows, custom agents, and deep integrations with existing tooling.

This is a full-time, on-site role in Berlin, Germany . Visa sponsorship is available. You'll have substantial ownership over features from conception through production, and direct influence on product and architecture decisions at an early stage.

What You'll Do

• Design and implement robust backend systems and APIs powering an enterprise-grade AI platform.

• Build end-to-end solutions spanning backend (Node.js), 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 with the team on technical architecture decisions and system design.

• Maintain and optimize the codebase for performance, reliability, and maintainability.

• Participate in rotating Support Engineer shifts, where engineers across the team periodically focus on supporting customers and the customer support team.

What We're Looking For

Required:

• 3+ years of full-stack web development experience.

• Strong hands-on experience with Node.js , React / Next.js , and TypeScript .

• Proficiency in PostgreSQL and SQL — data modeling, querying, and query optimization.

• Proficiency with Tailwind CSS for frontend styling.

• Experience owning features end-to-end, from conception to production deployment.

• Experience building AI-powered features or integrating AI/ML services into production applications.

• Solid understanding of API design and integration with third-party services.

• Strong CS fundamentals and an ability to contribute to technical architecture and system design discussions.

• Excellent collaboration and communication skills across product and engineering teams.

• Willingness to work on-site in Berlin, Germany .

Compensation & Benefits

• Salary range: $66,000 – $120,000 USD annually (or local equivalent).

• Visa sponsorship available for eligible candidates.

• High degree of ownership and direct impact at an early-stage, mission-driven company.

• Opportunity to shape the product and engineering culture from the ground up.

Location

• Berlin, Germany — on-site.

• Visa sponsorship is available.