I’ve spent twenty-five years leading technology transformation at scale — hyperscale cloud at Microsoft Azure, security for a quantitative investment firm where the IP was the product, and now the technology strategy for critical U.S. financial market infrastructure, where downtime is not an option.
And I still build. Nights and weekends I work at the AI frontier with my own hands — agentic systems, autonomous coding pipelines, knowledge infrastructure for AI-native organizations. The executive work and the builder work feed each other: scale teaches you what breaks, the frontier teaches you what’s coming, and a security career teaches you to distrust every claim until you’ve verified it yourself.
The essays here sit at that intersection: what happens when AI meets institutions built entirely on human assumptions — the tacit knowledge, social contracts, and inferred context that every organization runs on and almost none has written down. Sometimes that’s security economics, sometimes architecture, sometimes leadership, which I’ve come to believe is human infrastructure in the most literal sense.
Essays ship here first, a few times a quarter. The full archive, my decision record, and a machine-readable version of everything lives at https://matt.rathbun.email. Don’t take my word for any of it — the receipts are linked.
