Friends of OpenJDK

With over 20 years of diverse experience across various roles and companies, Marit is passionate about building awesome software in collaboration with amazing people, and making developers’ lives better. She is committed to continuous learning and actively shares her expertise in programming, software development, testing, and test automation. Marit regularly presents at international conferences, participates in webinars, and appears on podcasts. Additionally, she writes blog posts and tutorials, creates videos, and is a contributor to the book “97 Things Every Java Programmer Should Know” (O’Reilly Media).

Simon Martinelli is a Java Champion, Vaadin Champion, and Oracle ACE Pro, with over three decades of experience as a software architect, developer, consultant, and trainer. As the owner of Martinelli LLC, he specializes in optimizing full-stack development with Java and has a deep focus on modern architectures and software modernization. He frequently shares his expertise by speaking at international conferences, writing articles, and maintaining his blog: https://martinelli.ch. His passion for teaching is reflected in his work as a lecturer at two universities of applied sciences in Switzerland.  

Geertjan leads the Friends of OpenJDK (Foojay.io) community and is an OpenJDK and open-source advocate. He’s worked at Sun Microsystems and Oracle and currently is at Azul. 

Ondro Mihályi is Director & Jakarta EE expert at OmniFish https://omnifish.ee/about-us/#ondro. Ondro is a core member of several opensource projects and Jakarta EE specification projects. He’s a frequent conference speaker, leader of the Czech JUG, and a Java Champion. He has co-founded OmniFish, which provides enterprise support for Eclipse GlassFish and expert Jakarta EE services.