AI Fullstack Engineer in Berlin

AI Full-Stack Engineer (m/f/d)

Remote within Germany | Permanent | Circa 5 years’ experience

The opportunity

We’re hiring an AI Full-Stack Engineer on behalf of a confidential client to build AI-powered business applications.

You’ll work across the full development lifecycle, turning ideas into reliable production software. This is a hands-on role combining full-stack engineering, applied AI and close collaboration with product and business stakeholders.

Client details will be shared during the recruitment process.

What you’ll do

• Build applications end to end, covering user interfaces, backend services, databases and cloud deployment.

• Develop frontends using React and TypeScript, with backend services in Python/FastAPI or Node.js.

• Integrate LLMs into applications for document analysis, knowledge retrieval and workflow automation.

• Build RAG pipelines using enterprise data, embeddings and vector search.

• Improve AI reliability through evaluation, monitoring, source citations and appropriate safeguards.

• Implement secure authentication, role-based access and data protection controls.

• Own automated testing, CI/CD and production performance.

• Collaborate with stakeholders on requirements, architecture and technical trade-offs.

What you’ll bring

• Around five years of professional software engineering experience, including substantial full-stack development.

• Strong React and TypeScript skills, alongside backend experience in Python or Node.js.

• Practical experience integrating LLMs or generative AI into applications, beyond using AI coding tools.

• Solid knowledge of APIs, relational databases and maintainable software architecture.

• Experience deploying applications on AWS, Azure or GCP.

• Familiarity with Docker, automated testing and CI/CD.

• Clear communication, ownership and effective remote collaboration.

• Professional proficiency in English. German is not required.

Five years of AI-specific experience is not expected.

Nice to have

• Experience with LangChain, LangGraph, LlamaIndex or similar frameworks.

• Knowledge of vector databases, LLM evaluation and observability.

• Experience building multi-tenant SaaS or enterprise integrations.

• Familiarity with Kubernetes, infrastructure as code or asynchronous processing.

The role offers

• Permanent employment.

• Remote working within Germany.

• Ownership across the full product lifecycle.

• The opportunity to build practical AI applications and influence engineering decisions.