Sven Woltmann @svenwoltmann.bsky.social Java Training and Modernization | 30 Years of Java Experience | Speaker at Java Conferences | Author for Professional Journals | HappyCoders.eu – one of the most widely read Java blogs in the German-speaking world
Anders @alvn.dk Open-sourcerer, creator of @KDK.ai and a bunch of other small - sometimes useful - tools
Heavily caffeinated
Csilla Szántó @csillaszanto.bsky.social I help professional SW engineers working on data-intensive appls to develop efficient and intuitive data visualisations so they can work on challenging projects, solving real world problems
Ian Preston @ianopolous.bsky.social Mathematician/particle physicist turned privacy researcher. Java Rockstar #Oxford Building a better web - private, self-sovereign identity, p2p, social - with @peergos.org. Public social media undermines democracy. #covidisairborne #maskswork #cleantheair
Nick Ebbitt @nickebbitt.com Manchester JUG leader, Cloud Native Glasgow organiser. Interested in all things platform engineering, Java and communities
Thomas Darimont @thomasdarimont.bsky.social Java gourmet since 2000. @keycloak Maintainer. @openid Certification team. @springframework Team Alumni. @jugsaar Organizer. @thomasdarimont@social.saarland
https://www.linkedin.com/in/thomasdarimont/
Kevin Wittek @wittek.dev Engineering Manager and Tech Lead at Docker, doing AI & Testcontainers, guitar & simracing, husband & dad
Corneil du Plessis @corneil.bsky.social He/Him.
Problem solver.
Scientific thinker.
Delivering code to production since 1985.
Ex-@spring.io Team
Speaker (only diverse panels)
Opinions are my own.
#KFSM, #NoCrypto, 🇺🇦
Alina Yurenko @alina-yurenko.bsky.social Ukrainian. Love tech, compilers, and open source. Developer Advocate for GraalVM at Oracle. Ambassador of snacks and not running.
Jakub Chrzanowski @chrzanowski.info 🥑 Lead Developer Advocate @JetBrains.com for IntelliJ Platform
🧩 Helps make JetBrains products extensible
🛠️ Builds useful stuff
🦬 Suffers from yak shaving
Ronald Dehuysser @rdehuyss.bsky.social Developer in ${enter your preferred stack here} | Co-JUG organizer | full-time #opensource developer | creator of @jobrunr.bsky.social.
Bad in #socialmedia.
Charles Humble @charleshumble.bsky.social Techie, podcaster, editor, author and consultant, 1/2 of Twofish. I'd rather be making music.
Work: https://www.conissaunce.com
Music: http://www.twofish-music.com
Thomas Wuerthinger @thomaswue.dev Passionate about compilers & programming languages. GraalVM founder & project lead. VP at Oracle. Expressed opinions are my own. For DM: contact@thomaswue.dev
Devoxx UK @devoxx.uk A Developer Community Conference
Sven Ruppert @svenruppert.com Java and Security by day, Bushcrafting by night
Patrick Baumgartner @patbaumgartner.com Working @42talents. Spring Trainer @VMwareTanzu. Co-Organizer @VoxxedZurich, Board member of @jugch, Software Crafters Zurich & SoCraTes Conf Switzerland
Nicolas Fränkel 🇪🇺🇺🇦🇬🇪 @frankel.ch 🧑💻 Developer and architect
🥑 Developer Advocate
✍️ Blogger @ https://blog.frankel.ch/
🎓 Eternal learner
📖 Book author at http://leanpub.com/integrationtest
JCON Conference @jcon.one Java Community Conferences - in-person.
linktr.ee/jcon_conference
Imprint, privacy policy: http://jcon.one
GOTO Conferences @gotocon.com #GOTO Presents the Brightest Minds in Tech.
Check out GOTO Conferences.
https://gotopia.tech
https://www.youtube.com/@GOTO-
jPrime Conference @jprimeconf.bsky.social 
geecon @geecon.bsky.social Java and JVM based technologies, dynamic languages, enterprise architectures, patterns, distributed computing, AI and more
https://geecon.org/ Kraków, 14-15 May 2026
Voxxed Days Luxembourg @lu.voxxeddays.com Voxxed Days conference in Luxembourg. Organized by @yajug.bsky.social. https://luxembourg.voxxeddays.com/en/#registration
Voxxed @voxxed.com Sharing expert knowledge on Java, JVM, Methodology, Cloud, Mobile & Future tech. Follow us for tutorials, presentations and interviews.
Voxxed Days Zürich @voxxedzurich.bsky.social Community Developer Conference in Zurich, Switzerland, taking place on 25 March 2025.
JavaZone @javazone.bsky.social JavaZone 2026, Norwegian Java conference, takes place on September 2-3, 2026, at Nova Spektrum, Lillestrøm near Oslo.
www.javazone.no
@dev2next.bsky.social @dev2next.bsky.social The conference to learn, apply, and improve our craft; spearheaded by @venkats.bsky.social
JNation 🇵🇹 May 26 & 27 - 2026 @jnationconf.bsky.social The Java, Javascript, devops, security and Artificial Intelligence Conference in Portugal.
May 26 & 27 2026.
https://jnation.pt
Devnexus @devnexus.bsky.social THE LONGEST-RUNNING AND LARGEST JAVA CONFERENCE IN THE USA. MARCH 4-6, 2025 BE THE FIRST TO KNOW OUR NEWS https://atlj.ug/StayInformed https://devnexus.com/
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.
Devoxx France @devoxx.fr 🤖 Devoxx France 🤖
Conférence pour les développeurs & développeuses
📍 Paris Palais des Congrès
📆 RDV du 7 au 9 avril 2027 pour la 15ème édition !- C Jochen Mader @codepitbull.bsky.social - Family
- Veganism
- Music
- Code
JavaForumNord @javaforumnord.bsky.social Die jährliche Community Konferenz der Java User Groups aus dem Norden, alle Themen rund um Java und Softwareentwicklung.
JChampions Conference @jchampionsconf.bsky.social Join us for the annual Java Champions online conference on 2025-01-23, 2025-01-24, 2025-01-27, & 2025-01-28
Visit https://jchampionsconf.com to see our lineup and to register for free.
The Onion @theonion.com America’s Finest News Source. A @globaltetrahedron.bsky.social subsidiary.
Get the paper delivered to your door: membership.theonion.com
Join The Onion Newsletter: https://theonion.com/newsletters/
Kevlin Henney @kevlin.bsky.social consultant · father · he/him · human (very) · husband · itinerant · programmer · keynote speaker · technologist · trainer · writer
@marcandsweep.bsky.social @marcandsweep.bsky.social 
Martin Klähn @mklaehn.bsky.social 
Benjamin Nothdurft @dataduke.bsky.social 🎤 Community, Leadership, Java, Cloud
🏅 8x Oracle ACE Pro, JUG Leader
🌍 San Francisco, CA <> Jena, GER
🔗 www.linktr.ee/dataduke
Daniel Terhorst-North @tastapod.com Runs Goalwards: 'Your business, optimized.' Started BDD, caused Cucumber. Optimizes orgs, teams, code. Coach, mentor, geek, mischief-maker. Christian, infrequent blogger. WWGH
https://goalwards.co
David Delabassée @delabassee.bsky.social Senior Director of Java Developer Relations - Oracle
Views are my own!
Daniel Bryant @dani-bry.bsky.social 
Devoxx Belgium @devoxx.com Devoxx Belgium 2026 : 5 - 9 October in Antwerp
Mark Reinhold @mreinhold.org Chief Architect, Java Platform Group, Oracle · Views are my own · https://mreinhold.org- T @tonyprintezis.bsky.social @tonyprintezis.bsky.social
Gergely Orosz @gergely.pragmaticengineer.com Writing The Pragmatic Engineer (@pragmaticengineer.com), the #1 technology newsletter on Substack. Author of The Software Engineer's Guidebook (engguidebook.com). Formerly at Uber, Skype, Skyscanner. More at pragmaticengineer.com
Johannes Bechberger @mostlynerdless.de OpenJDK hacker at SapMachine, works on hello-ebpf for fun
Foojay, the Friends Of OpenJDK @foojay.io Foojay.io is the central resource for the Java community’s daily information needs, a place for friends of OpenJDK, and a community platform for the Java ecosystem — bringing together and helping Java professionals everywhere.
Kelsey Hightower @kelseyhightower.com Minimalist
Virtual Java User Group @virtualjug.bsky.social Hi from VirtualJUG (vJUG), the world's first online-only Java User Group. Join us, and the best Java experts in the community!
Brian Goetz @briangoetz.bsky.social Java Language Architect at Oracle. Author, Java Concurrency in Practice (http://amzn.to/2nzZnkl). Also, cats.
Joe Darcy @jddarcy.bsky.social OpenJDK developer at Oracle, floating-point fancier, marathoner, record-setting fast walker, episodic photographer. Views expressed may or may not be held by any person or org.
@billykorando.bsky.social @billykorando.bsky.social 
Jfokus @jfokus.se Jfokus is all about developers!
Check out the conference: http://www.jfokus.se
Reza Rahman ☮ @reza-rahman.bsky.social Java technologist, leader, author, speaker. Past key member of Oracle’s and Microsoft’s Java teams. Jakarta EE Ambassador. Anti-racist. This account is squarely mine as are the views here.
#javabubble @javabubble.bsky.social Use the #javabubble or #java hashtags
The biggest community of Java Developers in Bsky!
I follow everyone who mentions #Java or #JavaBubble in their posts and repost them all!
Built by @raphaeldelio.dev
Not an official Java account
Jim Grisanzio @grisanzio.bsky.social Building FOSS Communities https://grisanzio.com/ #foss #opensource
Ron Pressler @pressron.bsky.social 
Chet Haase @chethaase.com Comedy writer, recovering software engineer.
Finding joy in saying nonsense with a straight face.
Most recent book: chethaase.com/androids
@wouter.coekaerts.be @wouter.coekaerts.be 
OpenJDK @openjdk.org The place to collaborate on an open-source implementation of the Java Platform and related projects · https://openjdk.org
Jacek Laskowski @handle.invalid Freelance Data(bricks) Engineer • Databricks MVP • #ApacheSpark #MLflow #DeltaLake #UnityCatalog #Databricks #Python #uv • Java Champion • ASF member • he/him
Into #LLMOps #MLOps #GenAI
https://www.linkedin.com/in/jaceklaskowski
Lgd. Viktor Klang @viktorklang.com Architect, Java Platform Group at Oracle.
⚡️Views are my own. ⚡️
Daniel Bryant @danielbryantuk.com Platform Engineer and PMM at Syntasso | News/Podcast at InfoQ | Web 2.0 coder, platform engineer, Java Champion, CS PhD | cloud/K8s, APIs, IPAs, running | learner/teacher
Bill Burke @handle.invalid Web dev. Farmer. Tipperary. Bullocks. Bees. Bad weather. 🇺🇦🇵🇸
@java-champions.bsky.social @java-champions.bsky.social 
Stuart Marks @smarks.bsky.social Java/JDK/OpenJDK developer, Oracle Corporation. The views expressed here are my own and do not necessarily reflect the views of Oracle. Mostly on @stuartmarks@mastodon.social ; formerly @stuartmarks on Twitter.
Régina ten Bruggencate @reginatb38.bsky.social Java developer, Member of Duchess, Java Champion and working for Trailblazers. Loves walking, geocaching, photography and playing historical figures.
Sergei Egorov @bsideup.github.io Cloud builder. Java Champion. @testcontainers co-creator. Prev: CEO/co-founder at @AtomicJarInc (acqd by @docker), StaffEng at @Pivotal/@vmware, @zeroturnaround.
📍 Boulder, CO 🏔️
CrAIg Walls @habuma.com Java Champion / Alexa Champion / Author of “Spring AI in Action”, “Spring in Action” & “Build Talking Apps for Alexa”/ Disney Parks Fanatic/ tabletop games player.
https://www.habuma.com
Roy van Rijn @royvanrijn.com Director of OpenValue Rotterdam, is a @Java_Champions, founder of Rotterdam JUG, public speaking: Java, AI, math, algorithms
Vlad Mihalcea @vladmihalcea.bsky.social @Java Champion working on Hypersistence Optimizer, author of High-Performance Java Persistence.
Blogging at http://vladmihalcea.com
Jonathan Vila 🥑☕️ - 🇪🇺🇪🇸🇵🇷 @vilojona.bsky.social Senior Staff Developer Advocate 🥑 @Sonar | Java Champion | Oracle ACE | IBM Contributor | Conference cofounder JBCNConf & DevBcn & AI4Devs | BarcelonaJUG organiser
Venkat Subramaniam @venkats.bsky.social Programmer, author, speaker, founder Agile Developer, Inc., co-founder of @dev2next Conference, professor @CSatUH
Víctor Orozco @tuxtor.bsky.social Java Champion, Oracle ACE Pro, I like to code
Marcin Grzejszczak @toomuchcoding.com Java Champion. Working on observability and contract testing - Micrometer, Spring Cloud Contract.- T Tom Schindl @tomsontom.eurosky.social CTO at Bestsolution.at, Java and Typescript Developer
Simon Maple @sjmaple.bsky.social 
Yuichi Sakuraba @skrb95.bsky.social Java Developer
Java Champion
Simon Ritter @speakjava.bsky.social Deputy CTO at @AzulSystems. Java Champion, member Java SE Expert Group, JCP EC, OpenJDK Vulnerability Group and Adoptium SC. AMA about Java and JVM.
Sven Reimers @sreimers.bsky.social Java Champion,
JUG Leader JUG Bodensee, JTaccuino
Apache NetBeans PMC, OpenJFX author,
Systemengineer @ Airbus Defence and Space
Stephan Janssen @stephanjanssen.be Founder @Devoxx.com Devoxx4kids, BeJUG and DevoxxGenie | Co-founder @Voxxed.com, VoxxedDays - Founder JCS int. acquired by RealDolmen ('02) : See also @ https://stephanjanssen.be
https://grokipedia.com/page/Stephan_Janssen
Mark Struberg @struberg.bsky.social ASF Member http://s.apache.org/strub , Java Champion, JCP and Jakarta EG Member, MicroProfiler, 10k OSS commits, Bezirksrat @GrueneFavoriten, struberg@mastodon.green
Attila Szegedi @szegedia.bsky.social Software engineer @ Datadog. Lives in Switzerland. They/them. Infrequent hiking photos on https://pixelfed.social/asz
Donald Raab @thedonraab.bsky.social Java Champion. Writer of blogs. Creator of the OSS Java library Eclipse Collections. Author of Eclipse Collections Categorically (https://a.co/d/6KmhrNK) . Opinions are my own.
Blog: https://donraab.medium.com/
Michael Simons @rotnroll666.bsky.social 👨👩👦👦👨🏻💻🚴🏻 – Father, Husband, Developer, Athlete. Author of Spring Boot Buch, and DuckDB in Action with Manning. Java champion working at Neo4j on various integrations within the JVM ecosystem.
More: https://michael-simons.eu
Sanne Grinovero @sannegrinovero.bsky.social Passionate about reliability, OSS, and efficiency. Java Champion, tech lead in the Quarkus and Hibernate communities, JVM/Linux explorer. Working at IBM, leading various R&D initiatives.
Aleksey Shipilëv @shipilev.bsky.social In love-hate relationship with machines. Currently: OpenJDK, AWS. "Trust me, it's really me" backlink: https://shipilev.net/#social
Falk Sippach @sippsack.bsky.social Software architect @embarced, organizer @JUG_DA, @CyberLandConf, @iSAQB, @SpeaKonf, @devsonthestage, member of @Java_Champions
Henry Coles @pitest.bsky.social Fiction: Scottish Book Trust New Writer 2023. SCWBI Undiscovered Voices 2024. Repped by Lucy Juckes at @jennybrownagency.bsky.social
https://henrycoles.com
Tech: Made mutation testing popular - Java Champion
https://pitest.org https://www.arcmutate.com
Probir @prpatel.bsky.social 
Rafael Winterhalter @rafaelcodes.bsky.social software consultant who likes static typing, coding at http://github.com/raphw 🇧🇻🇩🇪🇪🇺
Bruce Tate @redrapids.bsky.social Founder Groxio for teaching Elixir; Author of Seven Languages in Seven Weeks, Gold looper. Follow for learning Elixir and programming languages. 
Robert Scholte @rfscholte.bsky.social Founder/owner Sourcegrounds, Java Champion, former Maven chairman, international speaker, bookreviewer
Rabea Gransberger @rgransberger.bsky.social Mother of 2 Kids (2019, 2021), Java Developer, Java Champion
Richard Fichtner 💻☕ @richard.fichtner.dev CEO of @xdev.software, Loves Java ❤️☕, Java Champion, Founder JUG Oberpfalz, Co-organizer @jcon.one, IBM Champion, Oracle Ace, Vaadin Champion, Dongolorian, Father and Husband
Romain Guy @romainguy.dev Photography (https://curious-creature.com), Blog (https://romainguy.dev). In the past: Engineering Director, Android Toolkit team at Google.
Nate Schutta @nts.bsky.social Java Champion. Speaker. Author. Architecture Monkey. Storyteller.
http://ntschutta.io
Ken Fogel @omniprof.bsky.social Java Champion, Retired CS teacher, Author of Transitioning to Java, JChampions Conference organizer, Humanist
Ondro Mihályi @ondromih.bsky.social Java enthusiast. Director at @omnifish.bsky.social. @CZJUG.bsky.social lead. @Java-Champions.bsky.social. @JakartaEE.bsky.social committer. All opinions my own.
Peter Pilgrim ✅ @peterpilgrim.bsky.social Principal Engineer Consultant | Java Champion | Keynote Speaker | #TechLead | #Protest | #MicroAggression MINKY’S DAD (2014-2022)