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Malte FriesMF

Malte Fries

AI Platform Architect

€1,100/day
Lübeck, DE
15+ years

Average response time: 1 hour

Freelancer profile translated to English.
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About Malte

My focus is on building complete systems: RAG pipelines, agents, MCP integration of internal tools, and the surrounding platform. Designing, implementing, and operationalizing architecture.

Currently, I am responsible for the architecture and backend of an enterprise-wide AI platform: over ten thousand users, token throughput in the millions per second, entirely custom in .NET.

I use frameworks like Semantic Kernel, LangChain, or LlamaIndex on a needs-specific basis. Here, the decision favored a custom implementation; in other contexts, established tooling might be the better choice.

Focus areas:

- RAG systems with retrieval, reranking, and document-based access control
- Agentic AI: Orchestration, Agent Loops, A2A
- MCP integration of internal systems
- Enterprise backends in .NET/C#, multi-tenant; multi-cloud: Azure (AI Search, OpenAI), AWS Bedrock, GCP Vertex
- Architecture reviews and technical consulting for teams in development

Before that: 6 years running my own GmbH, then software testing at imbus, followed by test automation for safety-critical medical software. Over 14 years of software development.

Typical mandates: Building or revising RAG/agent systems, AI platform architecture, MCP integration, technical consulting.

Remote. Pragmatic. Hands-on.
  • German

    Native or bilingual

  • English

    Conversational

Remote only
Primarily works remotely

Experience

  • Drägerwerk AG & Co. KGaA
    Software Architect
    MEDICAL
    November 2019 - Today (6 years and 9 months)
    Lübeck, Germany
    At Dräger, I was the sole architect building an internal, enterprise-wide platform for generative AI and RAG, from system architecture, connecting large language models from all frontier providers, to integrating internal applications with the language models via MCP and connecting scope-based knowledge domains.

    Before that, I built a cloud-based test automation stack that enabled testing of ventilation monitoring systems through horizontal scaling.

    Focus areas of my work:

    Platform architecture for AI applications
    Optimization of RAG systems
    Integration of internal systems with AI (including via MCP)
    RAG MCP AI Architecture AI Agent
  • F&G IT Solutions
    Managing Director
    SOFTWARE PUBLISHING
    May 2012 - November 2018 (6 years and 6 months)
    Neumünster, Germany
    Managing Director and Developer in one person. I conceived, developed, and maintained modular software products in .NET for years – based on an extensible plugin/module architecture with its own paying user base.

    This included interface design, automation of complex, stateful workflows, and ensuring robust, unattended continuous operation. In parallel, I held overall entrepreneurial responsibility: sales, license/pricing model, releases, customer support, and direct contact with the user base. In short: end-to-end ownership from the first commit to support.
    .NET software-architecture C# Management B2C

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