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# Full Stack Developer (AI SaaS)

- **Company:** Clera
- **Location:** Hamburg, Germany
- **Experience:** Experienced
- **Contract:** Permanent contract
- **Skills:** Application Programming Interfaces (APIs), Artificial Intelligence, Application Services, Software as a Service, MongoDB, TypeScript, Large Language Models, NestJS
- **Published:** October 27, 2026
- **Apply:** https://startup.jobs/full-stack-developer-ai-saas-clera-10580514

## About the Role

* 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.

## Description

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., * 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.