Writing
Practical notes on engineering leadership, applied AI and technology transformation, written for people who lead and build engineering teams.
- 30 June 2026
What production RAG actually cost us
What a production RAG stack really took: from a cheap Gemini API to our own fine-tuned Gemma, and why the model was never the expensive part.
AILLMsRAGCost - 23 June 2026
How we went from six platforms to two
How we reduced six e-commerce platforms to two, cut annual costs from about €4M to €3M and maintained a 99.99% SLO.
Engineering leadershipPlatform transformationCost - 16 June 2026
What ten years of production AI taught me
A chatbot for twenty thousand bank employees before ChatGPT, a risk review cut from two weeks to a day, and the one lesson that outlived every model.
AIEngineering leadershipLLMs - 9 June 2026
Fractional, interim, or full-time CTO: which one do you actually need?
A straight comparison of fractional, interim and full-time CTOs: when each one fits, when it is the wrong call, and how to decide for your stage.
Fractional CTOEngineering leadershipHiring