Markus Stolzenburg

As founder of Stolzenburg Ventures, I build production AI end to end and advise companies on AI adoption and build-vs-buy. I work hands-on in Claude / Claude Code — agents, prompt and agent architecture, MCPs, multi-agent pipelines and RAG — and take a brief from whiteboard to a working prototype in days. My proof point is MethodStrength, a live, AI-native strength-training app I built solo and shipped to real users: AI as the core product logic (adaptive plans, a post-workout feedback loop, overtraining detection), an offline-first PWA, and a 77% cut in token cost per plan through prompt architecture. I codified my own AI-assisted delivery method (GSD: Discuss → Plan → Execute → Verify) to ship at startup speed. Typical engagements: AI prototyping and 0→1 product development, agent and LLM solution architecture, and pragmatic AI-adoption strategy that ships rather than stalls in workshops.

I led the group-wide AI and automation programme for FOM, Germany's largest private university (BCW Group), end to end — from strategy through real adoption. I built AI ways of working, role-specific upskilling and internal champions, and established reusable playbooks and paved paths so capability compounded instead of depending on a central team, with impact measured in time saved, quality and ROI. The hard part was never the tooling — it was getting teams to change their daily habits, driving adoption through leaders by influence rather than top-down authority. I also scaled the digital engineering organisation from 15 to over 45 people, leading engineering, product and data teams.

As Head of Digital Client Experience & Digital Transformation, I led the transformation programme for the newly merged Hauck Aufhäuser Lampe (≈1,200 people), aligning the digital client experience across the combined bank. I steered the digital agenda across business lines, drove change and adoption rather than rollout alone, and managed executive and C-level stakeholders to keep priorities aligned through a complex post-merger integration.