GConferenceGridThe Conference Catalogue · Vol. 2026Folio № BBD12A
Of the Field

J-Spring 2026

J

-Spring brings together top speakers and an amazing community to exchange ideas, share knowledge, drive insightful conversations, facilitate networking and last but not least – have fun. As a Base, Core, or Key member of NLJUG, you will receive your exclusive discount code for J-Spring via email. J-Spring 2026 is the best place to get a complete overview of…

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36Voices
8Underwriters
0Exhibitors
0On the bill · sessions
34Companies · in total
§I

The Voices

Programmed at J-Spring, in alphabetical order.
Alejandro Serrano Mena
Researcher @ Kotlin Language Evolution Team · Kotlin Language Evolution Team
Ana Maria Mihalceanu
Java Champion Alumni, Certified Architect
Andrei Shakirin
Amazon Web Services
Ario Afrashteh
Lead Engineer focusing on AI & Data
Arnaud Jean
Developer Advocate @ AWS · AWS
Balkrishna Rawool
IT Chapter Lead at ING Bank NV · ING Bank NV
Baruch Sadogursky
DevRel, Tessl AI · Tessl AI
Bouke Nijhuis
CTO @ CINQ ICT · CINQ ICT
Bruno Souza
helping developers design amazing careers
Catherine Edelveis
Developer Advocate at BellSoft · BellSoft
Daniel Garnier-Moiroux
Software Engineer, Spring team · Spring team
Guus de Wit
Software developer at adesso Netherlands · adesso Netherlands
Hinse ter Schuur
Senior Software Engineer at SDB Java · SDB Java
Holly Cummins
Senior Principal Software Engineer, Quarkus · Quarkus
Jago de Vreede
Developer at TenneT · TenneT
James Ward
Developer Advocate @ AWS · AWS
Josh Long
Spring Developer Advocate
Lucía Conde-Moreno
Head of AI Research & Software Engineer at Info Support B.V. · Info Support B.V.
Maik Kingma
Principal Consultant @ the/experts. · the/experts.
Marc Buma
Owner - Bumos · Bumos
Marit van Dijk
Software Developer | Java Champion | Senior Developer Advocate at JetBrains · JetBrains
Michael Coté
cote.io

— and 14 more, by name unsung —

§II

Underwritten By

The houses behind the program. Tiers as disclosed.
ABN AMROGold
RabobankGold
BelastingdienstBronze
LogiusBronze
OutlookBronze
RijksoverheidBronze
SoftwareCBronze
Sopra SteriaBronze
Intermission
Part the Second · For the Buyer

What does it mean when 34 companies show up — and 1 bet on three roles at once?

“34 companies. one 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
1All threespeak · spons · exh
7Sponsoringsponsor only
0Exhibitingexhibitor only
26Speakingspeaker only

The Triple-Threat

Rabobank

№ 02Fig. 02 — The Voices, by Seniority

11% of the speakers carry senior titles — C-suite, Founder, VP, or Director-level.

  • C-suite26%
  • Founder / Owner13%
  • Director / Head of13%
  • Manager / Lead514%
  • Engineer · IC1953%
  • Research / Science26%
  • Other roles617%

Of 36 on the bill · classified by free-text title

№ 03Fig. 03 — The Heaviest in the Room
  1. 01RabobankSp·G1V
  2. 02ABN AMROSp·G
  3. 03BelastingdienstSp·B
  4. 04LogiusSp·B
  5. 05OutlookSp·B
  6. 06RijksoverheidSp·B
  7. 07SoftwareCSp·B
  8. 08Sopra SteriaSp·B
  9. 09AWS2V
  10. 10BellSoft2V
  11. 11ABNAMRO1V
  12. 12adesso Netherlands1V
  13. 13Alliander1V
  14. 14Amazon Web Services1V
№ 04Fig. 04 — By Tier
gold2
25% of 8
bronze6
75% of 8
№ 06Fig. 06 — Adjacent Convocations · by shared underwriters