I build high-integrity retail and AI-driven ecosystems, with a focus on Agentic Engineering: turning AI agents and LLM-powered workflows into reliable, production-ready products.

• Agentic Engineering & LLMs: Building, training, and deploying custom LLMs, autonomous AI agents, and dependable agentic workflows.
• AI Governance: Certified AI Officer with a focus on the EU AI Act, advising on responsible AI adoption, risk management, and compliance-oriented implementation.
• Scalable Architectures: High-integrity, real-time ecosystems using NestJS, React, and PostgreSQL.
• Cloud Architecture: Certified Azure Architect designing scalable enterprise solutions and DevOps pipelines.

• chat-takeout-md: A local-first CLI that converts Claude and Gemini data exports into portable Markdown archives, including images and documents available in the export. Processing is entirely offline.
• OpenClockwork: A self-hostable, mobile-first PWA for time tracking and attendance, designed around real-world German labour-law workflows. Built with React, NestJS, PostgreSQL, Prisma, and an API-first REST/WebSocket architecture.
• SourceBraid: A local-first workflow for turning web sources into durable Markdown archives that stay under the user's control.

If these projects save you time or help you build something better, you can support their continued development through GitHub Sponsors. Sponsorships help cover hosting, domains, CI infrastructure, documentation, and the time required to maintain dependable open-source releases.

As CTO of Bütema AG, I lead the technical vision for Digital Signage and Mobile ERP (mERP):

• mERP Ecosystem: Mobile software networking all POS processes with deep merchandise system integration.
• Digital Signage: Architecting CMS and hardware for global screen networks and LED walls.
• AI & Automation: Implementing solutions like the AI assistant KIra for automated retail services.

Architecting a UCP-native Mobile ERP system designed for Agentic Commerce:

• Vision: Enabling AI agents to negotiate and purchase via the Universal Commerce Protocol.
• Tech: Using Azure AI Vision for instant JSON-LD product transformation and high-integrity inventory systems.

Building a Universal PWA for seated events such as Prunksitzungen, theater, and venues:

• Vision: Helping operators increase revenue and reduce stress by letting guests order at the table via QR code, pay with PayPal, and keep kitchen and runner workflows clear in real time.
• Tech: Universal PWA with role-based Guest, Kitchen, Runner, and Admin views, PayPal Express Checkout, WebSockets for real-time order/status updates, tablet-based Kitchen Display, smartphone Runner View, and live revenue tracking.

• ⛳ Golf (HCP <14) . 🍷 Wine Enthusiast

"Excellence through innovation. Turning ambitious visions into scalable, production-ready solutions."