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JCONJava conferenceJavaXDEV Software GmbH

Review: JCON Europe 2023 attracts international Java community to Cologne

From June 20 to 23, the Java conference JCON Europe 2023 took place at the Cinedom in Cologne. After a long period of virtual events, it was great to finally experience the event again as an in-person event as it was always intended. With attendees from over 60 countries and 5 continents, JCON Europe 2023 was a truly global event. XDEV, as a Gold Partner and co-organizer, was of course also represented with an entire delegation.

The conference offered attendees, some of whom had traveled from Brazil, Nicaragua and South Africa, a comprehensive program with over 120 top-notch speakers over the four days. From the basics to the latest developments and best practices, there was something for every Java developer to discover. The variety of talks and workshops once again made it clear how vibrant and innovative the Java community is.

In addition to new input from the Java world in the unique cinema atmosphere with a huge screen, the conference naturally also offered participants the opportunity to network. During the breaks and in the evening there were plenty of opportunities to exchange ideas with like-minded people and to make new contacts.

We captured some opinions from the guests:

A N M Bazlur Rahman · Java Champion | Software Engineer | JUG Leader | Author | Blogger | Editor at InfoQ and Foojay.IO
“JCON offered a fantastic opportunity to meet people I had previously only known online, allowing for meaningful in-person connections. The event excelled in bringing together speakers from around the world, making it a truly global gathering. The impressive venue, featuring a large hall and a huge screen, added to the overall experience and created a captivating atmosphere. The positive energy and enthusiasm felt throughout the event made it a memorable and enjoyable experience.”

Emily Fortuna · Developer Advocate at Temporal
“The attendees! The vibe! The organizing staff! I was really blown away by the warm, thoughtful people I met and the great conversations I had. I also appreciated that there were more women attendees than in some conferences I've been to. Thank you for a great event and all your care that you put into it.”

Martin Lippert · Spring Tools Lead & Sustainability Ambassador at VMware
“Well organized and a great location. I love the cinema environment. Absolutely awesome!
Richard and the team did a great job of creating a very nice atmosphere where everybody felt welcome. It felt like the whole organizing team really cared about every single attendee and speaker. Well done!!! The free drinks in the fridges were great as well.”

JCON Europe 2023 was undoubtedly a great success and showed that the desire for personal exchange and shared learning is unbroken. We thank all participants, speakers and organizers for their commitment and are already looking forward to JCON Europe 2024!

But first, the JCON World as an online conference in November 2023 is just around the corner! Details can be found at