This edition has endedNext: JCON EUROPE 2027Apr 26–29, 2027 · Cologne
Java

JCON EUROPE 2026

This edition has ended

JCON EUROPE 2026 ran May 19–22, 2026 at Cinedom in Cologne, Germany. It is a Java conference. ConferenceGrid lists 26 speakers and 19 sponsors. The next edition, JCON EUROPE 2027, is Apr 26–29, 2027 in Cologne.

Last verified May 6, 2026

JCON EUROPE 2026 is the premier in-person Java community conference in Germany, organized by the Java User Group Oberpfalz in collaboration with JAVAPRO Magazine. Attendees experience an immersive cinema setting, meet top speakers, participate in workshops, and connect with the Java community. The conference features live coding, hands-on frameworks, AI sess…

Visit the official site
26Speakers
19Sponsors
0Sessions
35Companies · in total

Speakers

Programmed at JCON, in alphabetical order.

Adam Bien
Java Champion, Oracle ACE Director, Consultant, Freelancer
Alina Yurenko
Developer Advocate for GraalVM · Oracle
Baruch Sadogursky
Java Champion, DevRel Team & Context Engineering Management · Tessl
Bruno Borges
Principal Product Manager · Microsoft
Bruno Souza
Java Champion, President of SouJava, Java Evangelist · Code4.Life
Dominika Tasarz
Community Manager & Senior Marketing Specialist · Payara
Eberhard Wolff
Head of Architecture · SWAGLab
Emily Jiang
Liberty Cloud Native Architect and Advocate · IBM
Frank Delporte
Java Champion, Senior Technical Writer · Azul
Gerrit Grunwald
Java Champion, Senior Developer Advocate · Azul
Grace Robinson
Product Manager · IBM
Jayashree S Kumar
Principal Member Technical Staff · Oracle
Kevin Wittek
Principal Engineer · Docker
Marc Philipp
Java Champion, JUnit Project Lead · JUnit
Marit van Dijk
Java Champion, Developer Advocate · JetBrains
Markus Eisele
Java Champion, Product Manager and Developer Advocate · IBM Research
Markus Kett
JAVAPRO Magazin Editor in Chief, CEO of MicroStream
Mary Grygleski
VP of Global (Western Hemisphere) · AI Collective
Merlin Bögershausen
Oracle ACE, Software Architect and Engineer · Moderne
Michael Simons
Java Champion, Author, JUG Leader, Senior Staff Engineer · Neo4j
Nupur Agarwal
Tech Lead · ING
Piotr Przybyl
Java Champion, Testcontainers Community Champion, Senior Developer Advocate · Elastic

Sponsors

The companies behind the program. Tiers as disclosed.

Cardano Foundation
Cyrock.AI
GEBIT Solutions
GermanTechJobs
Glorium Technologies
HeroDevs
IBM
iits-Consulting GmbH
JAVAPRO Magazin
Java User Group Oberpfalz
Karakun
MicroStream
Oracle
Sessionize.com
TechDogs
The Main Thread
TuxCare
Vaadin
XDEV Software GmbH

Quick answers

When is JCON EUROPE 2026?
JCON EUROPE 2026 ran May 19–22, 2026 at Cinedom in Cologne, Germany. The next edition, JCON EUROPE 2027, is Apr 26–29, 2027 in Cologne.
Where is JCON EUROPE 2026 held?
JCON EUROPE 2026 was held at Cinedom in Cologne, Germany.
Who is speaking at JCON EUROPE 2026?
ConferenceGrid lists 26 speakers, including Adam Bien (Java Champion, Oracle ACE Director, Consultant, Freelancer), Alina Yurenko (Developer Advocate for GraalVM, Oracle) and Baruch Sadogursky (Java Champion, DevRel Team & Context Engineering Management, Tessl).
Who sponsors JCON EUROPE 2026?
ConferenceGrid lists 19 sponsors, including Cardano Foundation, Cyrock.AI, GEBIT Solutions, GermanTechJobs and Glorium Technologies.
Company intelligence

What does it mean when 35 companies show up, and 3 bet on three roles at once?

35 companies. three are betting more than once.

The numbers below are derived from the speakers, sponsors, and exhibitors on this page, cross-referenced into one ledger. They are the only thing here that 10times.com cannot tell you.

Who's in the room
3All threespeak · spons · exh
16Sponsoringsponsor only
16Speakingspeaker only

In all three roles

Oracle·IBM·HeroDevs

Speakers by seniority

19% of the speakers carry senior titles: C-suite, Founder, VP, or Director-level.

  • C-suite14%
  • VP-level14%
  • Director / Head of312%
  • Manager / Lead623%
  • Product312%
  • Engineer · IC727%
  • Marketing / Brand14%
  • Other roles415%

Of 26 speakers · classified by free-text title

Most-represented companies
#CompanyRolesSpeakers
1OracleSponsor3
2IBMSponsor2
3HeroDevsSponsor1
4Cardano FoundationSponsor-
5Cyrock.AI, Inc.Sponsor-
6GEBIT SolutionsSponsor-
7German Tech JobsSponsor-
8Glorium TechnologiesSponsor-
9iits-consultingSponsor-
10JAVAPRO MagazinSponsor-
11Java User Group OberpfalzSponsor-
12Karakun AGSponsor-
13MicroStreamSponsor-
14SessionizeSponsor-
Sponsors by tier
unspecified19
100% of 19
At peer events but not here

These companies sponsored two or more peer events recently, but aren't on this program. For an organizer, that's a list of warm prospects.

Related events · by shared sponsors
ConferenceDateCityShared sponsors
JCON EUROPE 2027April 26, 2027Cologne6
Open Source Monitoring Conference 2026November 17, 2026Nuremberg4
IT-Tage 2026December 7, 2026Frankfurt am Main4
Open Source SecurityCon 2026November 9, 2026Salt Lake City3
KubeCon + CloudNativeCon North AmericaNovember 9, 2026Salt Lake City3
EKON Oktober 2026November 23, 2026Düsseldorf3

In the same series

Prior and forthcoming editions