Full Stack Developer (AI SaaS)

About the Role Join a growing AI SaaS team building chat and voice agents that help customers navigate complex product ranges online and in stores. You'll contribute to the development of customer-facing AI products and their supporting services. What You'll Do - Build and maintain application services using NestJS and TypeScript. - Work with MongoDB to support product functionality and data needs. - Integrate current large language model APIs into AI-powered features. What We're Looking For - Several years of professional NestJS experience, typically within a 3 to 10+ year engineering background. - Very strong TypeScript skills and solid MongoDB experience. - Hands-on experience with current LLM APIs. - Native or C2-level German proficiency. Compensation & Benefits Visa sponsorship is not available. Location Remote across Europe, or hybrid from Cologne or Hamburg, Germany. The primary location is Cologne, North Rhine-Westphalia, Germany.