Hi there! 🌿 👋


I'm Stefano Guerrini, a backend software engineer based in Haarlem, Netherlands.
I currently work at Marktplaats, where I help scale one of the biggest marketplaces in the country.

I work — and I've worked — with a bunch of backend technologies like Java, Scala, Kotlin, Kafka, Debezium, RabbitMQ, Redis, MySQL, Postgres, AWS, Docker, Kubernetes and more.

I love designing event-driven systems — clean, asynchronous, and built to scale. I enjoy working in teams where collaboration, transparency, and shared ownership are part of the culture. I like solving real-world problems with simple, scalable code.


Read my posts — thoughts on code, systems, and the occasional rabbit hole.