Christoph Diefenthal

Agentic RAG AI System

Christoph Diefenthal
Stuttgart, Germany

Experience

Mar 2025 - Oct 2025
8 months
Stuttgart, Germany

Agentic RAG AI System

Financial Services Provider

  • Developed an agentic RAG system to support the development organization.
  • Technologies: Python, LangGraph, Qdrant, Claude Code, GitHub.
Jan 2025 - Nov 2025
11 months
Stuttgart, Germany

Software Team Consulting

Bertsch Innovation GmbH

  • Scrum implementation, product development guidelines, architecture improvements in the automotive PIM system.
Mar 2023 - Dec 2023
10 months
Mannheim, Germany

Vue.js Development

Financial Services Provider

  • Expanded a comprehensive Vue.js portal, optimized the frontend architecture.
Sep 2022 - Dec 2025
3 years 4 months
Mannheim, Germany

ESB Data-Migration

Finance & Tax Software

  • Synchronization between CRM and Salesforce, data modeling, monitoring, data robustness.
Apr 2022 - Jul 2022
4 months
Frankfurt, Germany

React Developer

DB Systel / Deutsche Bahn

  • Developed interactive data science portals.
  • API integrations and data visualization.
Feb 2021 - Feb 2022
1 year 1 month
Stuttgart, Germany

CTO

mentor-app.de

  • Technical leadership of a coaching platform.
  • Building a microservice architecture and UX design.
  • Managing offshore development.
Jan 2016 - Dec 2021
6 years
Stuttgart, Germany

Automotive & Enterprise Architecture

iteratec GmbH

  • Product development and data integration.
  • Machine learning with neural networks and TensorFlow.
  • Microservices and connected car features.
Jan 2005 - Dec 2016
12 years
Stuttgart, Germany

Software Development & Architecture

Bertsch Innovation GmbH

  • Long-term work on web portals, including introducing WISO Steuer as a web version.
  • PIM/MAM product management, e-commerce, and integration projects.

Summary

Senior Software Architect & AI/LLM Engineer with over 20 years of experience in software development, enterprise architecture, data integration, and modern AI system development. Specialized in agentic RAG systems, LLM orchestration, cloud architecture, product development, and complex enterprise platforms in the automotive, finance, and SaaS sectors.

Skills

  • Ai & Llm: Rag, Langgraph, Openai/claude/mistral, Vector Databases
  • Software Development: Python, Node.js, Java, React, Vue.js
  • Architecture: Microservices, Cloud (Aws/azure), Ci/cd, Devops
  • Enterprise Integration: Esb, Data Migration, Apis, Pim/mam
  • Coaching & Product Development: Agile Methodologies, Team Leadership, Ux

Languages

German
Native
English
Advanced

Education

Stuttgart Media University

Diploma (FH) · Stuttgart, Germany

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