KI-Entwickler LLM / RAG / Agenten – Python oder TypeScript (m/w/d)

Contract type
Ongoing
Work mode
Remote · DACH-Region
Experience
Mid-level · 3+ years

Job description

Build production AI applications for enterprise clients, including dialogue systems, semantic search, RAG pipelines and tool-using agents.

At a glance

Employment
Full-time · Employee (employment agreement)
Work mode
Remote · DACH-Region
Languages
German – C1

What you'll do

  • Integrate language models into business applications: RAG with retrieval and reranking, tool calling, MCP servers, multi-agent workflows
  • Build evaluation: measure answer quality, limit hallucinations, keep costs and token usage under control
  • Select models and keep them swappable (Azure AI Foundry, AWS Bedrock, open models), considering governance and data protection
  • Operations: containers, CI/CD, monitoring, alerting
  • Close coordination with the client's business department, architecture and operations

What we're looking for

  • At least three years of software development in Python or TypeScript, after training or studies
  • At least one LLM application that ran productively at a client or employer (RAG, tool calling, agents), with your contribution to it
  • Docker, CI/CD and Git from day-to-day project work
  • German at least C1 in speaking and writing

Nice to have

  • Kubernetes or OpenShift, Helm
  • MLOps tools (MLflow, Kubeflow, model serving) and classic ML in production operation
  • Vector databases, embedding models, rerankers
  • Azure AI Foundry, AWS Bedrock or Vertex AI
  • EU AI Act, ISO 27001, accessibility
  • Experience at rail, public authorities or social insurance
  • Prometheus and Grafana, ArgoCD, SAFe

Benefits

  • Real production projects: AI that goes live at the client, no innovation lab, no slides
  • Remote-first in the DACH region; occasionally on site, otherwise you work from where you work well
  • Internal upskilling: we invest in your AI skills
  • MacBook
  • Flat hierarchies: the founders are your direct contacts

How to get hired

  1. 1Apply with a CV only, no cover letter needed
  2. 2Early availability is a clear plus
  3. 3We get back to you within a few days

Apply

About Rockstardevelopers GmbH

We know how to build software that holds up when it matters

Rockstardevelopers, founded 2015 in Mannheim, with offices in Stuttgart and Munich

Mission

Shift focus toward AI: LLM applications, RAG, agent systems that go productive at the client

Key facts

  • 2015
  • Mannheim, Germany
  • Founded in 2015 in Mannheim, with offices in Stuttgart and Munich
  • Clients include Deutsche Bahn and IT service providers in the public sector
  • Project language is German
  • Client meetings mostly in Frankfurt am Main

Partners & customers

Deutsche Bahn

What they value

  • Software that holds up in real operations
  • Flat hierarchies