I build cloud systems by day and write about them at night.

Most days I'm in Luxembourg wiring Kafka topics between Java and NestJS services that move 300,000+ fund transactions per hour for a Tier-1 bank. The platform is 70+ microservices on EKS, which is more than it needs to be, which I wrote a whole post about. I'm a consultant at CACEIS, doing what I'd describe as boring distributed systems work at high stakes.

On the side I write technical books. Three so far: agentic AI for software engineers, AWS cost optimization, and AI security. Each one came out of getting stuck on something at work, looking around for a clean explanation, and realizing nobody had written one. The books are the explanation I wish someone had handed me 18 months earlier.

Before Luxembourg I shipped fintech and CRM software from Montreal and Yaoundé. I have an MSc in Reliable Software Systems and Big Data Analytics from the University of Luxembourg, and I'm AWS Certified Solutions Architect. The certification was useful. The fintech years before that were where I learned what production actually means.

Outside of code I follow markets closely, which is partly how I ended up working in fintech in the first place. I play tennis when the weather holds. I read more than is reasonable. If you want to talk about agents, AWS bills, or whether the bank really needed 70 services, I'm easy to reach.