GConferenceGridThe Conference Catalogue · Vol. 2026Folio № C570DF
Java

JCON EUROPE 2026

J

CON 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…

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26Voices
19Underwriters
0Exhibitors
0On the bill · sessions
35Companies · in total
§I

The Voices

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

— and 4 more, by name unsung —

§II

Underwritten By

The houses 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
Intermission
Part the Second · For the Buyer

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.

01Fig. 01 — Composition of the House
3All threespeak · spons · exh
16Sponsoringsponsor only
0Exhibitingexhibitor only
16Speakingspeaker only

The Triple-Threat

Oracle·IBM·Herodevs

02Fig. 02 — The Voices, 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 on the bill · classified by free-text title

03Fig. 03 — The Heaviest in the Room
  1. 01OracleSp3V
  2. 02IBMSp2V
  3. 03HerodevsSp1V
  4. 04Cardano FoundationSp
  5. 05Cyrock.AISp
  6. 06GEBIT SolutionsSp
  7. 07GermanTechJobsSp
  8. 08Glorium TechnologiesSp
  9. 09iits-Consulting GmbHSp
  10. 10JAVAPRO MagazinSp
  11. 11Java User Group OberpfalzSp
  12. 12KarakunSp
  13. 13MicroStreamSp
  14. 14Sessionize.comSp
04Fig. 04 — By Tier
unspecified19
100% of 19
05Fig. 05 — The Missing · who's 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.

06Fig. 06 — Adjacent Convocations · by shared underwriters

In the same series

Prior and forthcoming editions