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Experience

2025-02-01

2 min read

Software Engineer at Heimat24 AI

Building intelligent AI applications with emphasis on RAG, Chatbots, and Automation systems.

AIPythonHaystackRAGChatbotsComplianceGDPR
Company

About Heimat24 AI

Heimat24 AI is at the forefront of AI-powered solutions for the Public sector. We're building intelligent systems that help goverment agencies achieve more in their day to day task using data secure and GDPR compliant frameworks.

My Role

As a Software Engineer at Heimat24 AI, I work on developing and deploying AI applications that solve real-world problems. My focus areas include:

RAG (Retrieval-Augmented Generation)

Building a compplex RAG system that ingested documents, and full website content in order to provide meaninful context to our AI Agents for meaningful, helpful and context aware replies

Conversational AI

Developing chatbots that can handle users inquiries, provide support, recommendations, and assist with their queries process in multiple languages.

Clients Specific applications

Developped specialsised applications and Addons for platforms like MS Outlook to allow our users to have access to their RAG database when responding to emails in their day to day support tasks.

Key Projects

Intelligent Document Assistant

Built a RAG-powered system that processes property documents and answers tenant questions in natural language. The system uses:

  • Haystack: For document processing and retrieval
  • Vector Databases: For efficient semantic search
  • OpenAI APIs: For natural language understanding

Multi-Language Support

Implemented translation and localization features to support tenants from different countries, making the platform accessible to Germany's diverse population.

Data secure Chat application

Built the model support for our multimodal application integration well performing models providers Claude, Gemini, as well as open source models such as Deepseek and more

Technologies

I work with a modern AI stack:

  • Python: Primary development language
  • React: Frimary frontend framework
  • Haystack: AI application framework
  • FastAPI: API development
  • PostgreSQL: Data storage
  • Stripe: Payment processing
  • Docker: Containerization and deployment

What I'm Learning

Every day brings new challenges and learning opportunities:

  • Advanced RAG techniques and optimization
  • Prompt engineering for production systems
  • Scaling AI applications for real-world use
  • Balancing AI capabilities with cost and performance

Team Culture

Working at Heimat24 AI means being part of a team that values:

  • Innovation and experimentation
  • Learning and knowledge sharing
  • User-centric design
  • Technical excellence

Impact

The work we're doing is helping thousands of people use data private AI applications in their day to day work. It's rewarding to build systems that make a real difference in people's lives.

Related

Status Terminal

Mathieu Foko

Mathieu Foko

Software Engineer + AI Student

Open to collaborations

Current Focus

  • Building AI applications at Heimat24
  • Studying AI in Germany
  • Shipping Swift + Next.js apps

I build software people actually use. Most days I am shipping AI workflows, retrieval systems, and product features, then heading back to class to study modern AI systems.