Konstantin Belinski @belinski.dev 
@sajanssens.bsky.social @sajanssens.bsky.social 
@timveijndhoven.bsky.social @timveijndhoven.bsky.social 
Ruud @ruud.online Software engineer from the Netherlands. Always looking for new stuff to learn. https://www.ruud.online
Balkrishna Rawool @balarawool.bsky.social Java | Spring | OOP & FP |
Debugging apps using System.out.println() since 2003.- A Abdullah @abdullahsen.bsky.social Android Developer
Ghost AI Modeling @businessao.bsky.social Traffic Automation Builder • AI Personas • OFM • I Post full methods on my Twitter - https://x.com/ghostautomation
FOLLOW - https://x.com/ghostautomation- B I love Java @btdev.bsky.social Java developer
Roy Braam @rbraam.bsky.social OpenValue Amsterdam | Conference speaker | Board member Amsterdam JUG | Love to share knowledge | Father of 2 | Does something with Computers
Jens Knipper @jensknipper.de Software Engineer working for @openvalue.eu
Blogging on jensknipper.de
Michaël van de Giessen @tubby.nl Java web developer at http://intractief.nl , #satisfactory gamer, #lanparty fossil, #UX freak, #coderdojo and #devoxx4kids mentor, actually partly javanese https://tubby.nl
Hanno Embregts 🎤🎸 @hanno.codes Java Developer 💻 by day, musician 🎤🎸 by night. A bit of both at developer conferences.
🏆 Java Champion
♠️ Oracle ACE Pro
🎟️ NLJUG Leader
👨🏼💻 Trainer / Technology Advocate at Info Support
🔗 hanno.codes
🇺🇦🏳️🌈🌱 Code for good
@bert-breeman.bsky.social @bert-breeman.bsky.social 
@shoogerbrugge.bsky.social @shoogerbrugge.bsky.social java code nerd | boardgames | run tennis feyenoord | nature | vintage vinyl scooters | travel | friends | mother wife | food | something like that
Tom Cools @tomcools.be DevRel @Timefold | Conference (Keynote) Speaker 🗣️ | #Java Champion | @BeJUG Organizer | Kind of a weird guy 😅
Ionut Balosin @ionutbalosin.bsky.social 👨💻 Principal IT Architect • 🎓 Technical Trainer • 🏆 Java Champion • ♠️ Oracle ACE Associate • 🔑 Security Champion • 🎤 Speaker • ✍️ Blogger • 🌍 www.ionutbalosin.com
Jordy Onrust @jonrust.bsky.social Tech consultant Rijks ICT Gilde
@furiousfurfur.bsky.social @furiousfurfur.bsky.social Software Developer. Gamedev Enthusiast. Sci-Fi Wrangler. All round know-it-all. He/him.- R @r088.bsky.social @r088.bsky.social
Lutske van der Meer @lutskedev.bsky.social Software Engineer @Craftsmen | Speaker | Community builder
Full-stack dev with a focus on Java, Angular & AI.
Passionate about Machine Learning, cats 🐾, and sharing knowledge.
Advocating for diversity as a woman in tech.
ApeldoornJUG, JUGNoord,Devoxx4Kids
Hubert Klein Ikkink @mrhaki.com Love to develop applications with gr8 technologies at JDriven. Interested in #java, #groovy, #clojure, #kotlin, #asciidoctor, #micronaut, #gradle.
https://www.mrhaki.com 🇳🇱🇪🇺🏳️🌈
@llroelj.bsky.social @llroelj.bsky.social 
Vasco Veloso @vasco-veloso.bsky.social A helicopter view of life and tech. More tech, really.
Johan Hutting @johanhutting.bsky.social Senior software engineer / Developer advocate @ ING, co-organiser JUG Noord and ING backend summit.
Opinions expressed are my own.
Rijo Sam @rijosam.com Java Chapter Lead @ ABN AMRO | Public Speaker
Loves Java ☕ | Cycling 🚴🏽♂️ | Burgers 🍔
rijosam.com
@josroseboom.bsky.social @josroseboom.bsky.social 
Nataliia Dziubenko @nataliiadziubenko.com 🇺🇦🇳🇱 Making cool stuff at Azul, passionate about everything Java & JVM https://nataliiadziubenko.com/
Piter @piterdb.bsky.social Amsterdam, {Dev}*
Michel van Dongen @michelvandongen.bsky.social Director Software Engineering at adesso NL | Manager Blue4IT | co-leader Utrecht Java User Group
Sally @sallym12.bsky.social 
Jan Ouwens @jqno.nl Developer ◦ Java/JVM ◦ EqualsVerifier ◦ speaker ◦ @yoink.nl but opinions mine ◦ 👨👩👧 ◦ 🇳🇱🇪🇺 ◦ 🖖🏻 ◦ 💚 ◦ 🇺🇦🌻 ◦ he/him
Martin @martinvisser.bsky.social I know how to write Kotlin and Java (see, I just did) @openvalue.eu
KP @kapej.com Open Accelerator | Building Tech Tribes | Social Entrepreneur | Open Source Advocate | Community Builder | Fryslân | Tech Nerd | Family Man | Padel Player | Lazy Runner
Ankur Kumar @ankurkumar.bsky.social 📝 A Techie, Blogger, Educator & Mentor
🖥️ Shares Learnings on Cloud, GenAI, Platform Engineering, Microservices, DevOps, Data Engineering
💙 Loved Husband, Proud Dad
💡 Founder Vedcraft.com - a platform for enabling Cloud, GenAI
🎯 Sports🏎️ 🎾 🏏🏒, Loves ☕🎦📘
William Heinzer @williamheinzer.bsky.social 
Voxxed Days Amsterdam @amsterdam.voxxeddays.com Accelerate your skills at Voxxed Days Amsterdam on April 1st and 2nd, 2026! The conference for the next generation of developers.- T @tw33tzr4kidz.bsky.social @tw33tzr4kidz.bsky.social
Jan-Hendrik Kuperus @jhkuperus.bsky.social Founder & Director @Yoinknl | GSF Champion
| Coder | Architect | Speaker | Nerd | Teacher | Father | Husband | Amateur Baker 🍞 | Tinkerer | LEGO Nerd | Science Fan | Human
Marit van Dijk @maritvandijk.bsky.social 💻 Software Developer | ☕🥑 Java Developer Advocate @ JetBrains | 🏆 Java Champion | 🎤 International Keynote Speaker | 👩💻 Pronouns: She/her
https://maritvandijk.com/
Liroy Leshed @liroy.bsky.social Founder & CEO of 21tycoons. Makers of TYCOON (CRM), Bonfire (https://bonfirehq.com), and Squeezer. email me at liroy@tycooncrm.com.
https://tycooncrm.com | https://squeezerhq.com
Stefan Poindl @tohuwabohu.io Senior Software Engineer at OpenValue Vienna. Likes to write about tech related shenanigans.
@ejnark.bsky.social @ejnark.bsky.social 
Kaya Weers @kayaweers.bsky.social Java developer with a great love for innovation | Conference speaker | Likes to play soccer and travel the world
OpenValue @openvalue.eu Better software, faster. Java & full stack development, consultancy and training. Read more on http://openvalue.eu and http://openvalue.training.
Tom Wigleven @tomwigleven.bsky.social Principle Engineer @ OpenValue
@mauropalsgraaf.bsky.social @mauropalsgraaf.bsky.social 
Chris Romkema @c-romkema.bsky.social Software engineer @ OpenValue Utrecht.
Frank @walinga.dev 
@aw4x.bsky.social @aw4x.bsky.social 
Paulien van Alst @paulienvanalst.bsky.social Software engineer and speaker @OpenValue | Kotlin - Java | @Kotlin | @JUGNoord co-organiser | 🇳🇱🇫🇷
https://sessionize.com/paulien-van-alst/
Piet van Dongen @pietvandongen.com (Software) enthusiast @openvalue.eu. Value hypothesis loop focused. iSAQB® Accredited Software Architecture Trainer. He/him.
Jaap Coomans @handle.invalid Father | Husband | Developer | Java | Kotlin | @brabantjug.nl leader | Speaker | Craft beer sampler | Board game player | Willem II 🔴⚪🔵| He/him
Brabant JUG @brabantjug.nl Java User Group for the province of North-Brabant. Community for anyone interested in Java and Open Source in or around Brabant.
LaurensLeeuwis @leeuwis.eu 
Anton de Ruiter @aruit.bsky.social Manager Java Belastingdienst
Paco van Beckhoven @devpaco.bsky.social 🇨🇭🌈 Software engineer @hexagon_dr |
Studied software engineering @UvA_Amsterdam | Conference speaker | Running | Climbing | Skating | Gaming
Vincent Heet @vincentheet.bsky.social Principal Engineer, Software, DevOps, Cloud infrastructure, Kubernetes. Working at Topicus.
Ben Linders @benlinders.bsky.social 
Cees Bos 👨🏻💻 📉🔍📈 ✅ @ceesbos.nl Observability enthusiast | Grafana Champion | Java Developer
Always looking for ways to improve software with better observability and what new insights can be gained.
🖥️ @openvalue.eu as a software & observability engineer and SRE.
📖 ceesbos.nl
Makan Sepehrifar @makan1869.bsky.social Infinity… and Beyond
Hinse ter Schuur @coduinix.bsky.social 🇳🇱 Software Engineer @ SDB | #Java | Speaker 🗣 | he/him
Raphael De Lio @raphaeldelio.dev AI Engineer | Software Engineering | Forward Deployed Engineer @ Redis (@redis.io)
https://raphaeldelio.com | https://youtube.com/raphaeldelio | https://linktr.ee/raphaeldelio
Robert Scholte @rfscholte.bsky.social Founder/owner Sourcegrounds, Java Champion, former Maven chairman, international speaker, bookreviewer
Apeldoorn JUG @apeldoornjug.bsky.social Bringing together Java developers in the Apeldoorn area (The Netherlands). Follow us to keep up with events in the community! The Apeldoorn Java User Group is an initiative of Belastingdienst, Kadaster, Luminis & Profit4Cloud.
www.meetup.com/apeldoornjug
Steffan Norberhuis @snorberhuis.bsky.social AWS & DevOps | Founder Rocketleap
Ramon Wieleman @rwieleman.bsky.social Founder of Code Nomads | Conference Speaker | Interested in Productivity, Software Technology, Media, Sports | Certified Beer Taster
Brian Vermeer @brianvermeer.nl Java Champion | JUG leader
NLJug & VirtualJug | Oracle ACE Pro | CS Master at Utrecht University | Java | Haskell | Security | Dutch Air Reserve | Views are my own
Sharat (Shar) Chander - 🟦🌊 @sharatchander.bsky.social 🇺🇸🇨🇦 #DemocracyMatters | #DevRel |Previously at Oracle, Sun Microsystems, Verizon, & Bell Atlantic | University of Maryland (Undergrad) and Loyola University, Baltimore (MBA) | 70s rock, R&B, 80s alternative and Rap lover | Views mine
Artem @artemy.nl err and err and err again, but less and less and less
Bert Jan Schrijver @bjschrijver.dev CTO @OpenValue.eu, JUG leader @NLJUG.bsky.social. J-Fall/Spring organizer, @JavaChampions.bsky.social, @iSAQB.bsky.social, JavaOne rock star speaker, Duke’s choice award winner, Java/architecture/CD/DevOps.
Jago de Vreede @jagovreede.bsky.social Java Developer | International Speaker | Automate *everything*
§kuthus @skuth.us ○
🔗Skuth.us
Bees @apisbees.bsky.social I like bees and science. And helping with @metaminds.bsky.social
Corey Cottrell @coreycottrell.bsky.social AI tinkerer and protagonist. Pro-democracy. Resisting fascism. The Singularity is near.
Musician.