Johan Janssen

Johan Janssen is a Software Architect at ASML, where he focuses on building high-quality software in demanding, fast-paced environments. Over the course of his career, he has helped organizations deliver reliable systems at speed without compromising maintainability.

Johan is a seasoned international speaker, having delivered more than 100 conference sessions across 28 countries at leading events such as JavaOne, GOTO, Devoxx, JavaZone, J-Fall, Jfokus, and YOW!. He is a recognized expert in the Java ecosystem and has been honored with multiple awards, including Java Champion, JavaOne Rock Star, and Oracle ACE Pro.