Ken Finnigan @kenfinnigan.me Distributed systems builder, author.
https://www.commonhaus.org/ Council member.
Observability focused. Ex: @workday, @redhat.
Amateur genealogist.
Opinions are my own. he/him
Mastodon - @kenfinnigan@fosstodon.org
Marcus Hellberg @marcushellberg.dev Applied AI Researcher, Speaker, DevRel expert.
Java Champion.
VP of AI Research @vaadin.com
Jakob Homan @jakobhoman.bsky.social Software engineer. Data infra guy. Apache Committer/PMC on various projects. WebAssembly enthusiast. Also cinema, street photography and sarcasm...
No relation to that fascist fuck.
Jonatan Ivanov @jonatan-ivanov.bsky.social @micrometer.io and @spring.io maintainer, Spring Observability Team member, Open Sourcerer, Speaker, @seattlejug.bsky.social co-organizer, Java Champion
Erin Schnabel @ebullient.dev Java Champion. Distinguished Engineer and maker of things @ Red Hat. Former @IBM. Chairperson of the Commonhaus Foundation.
Freddy Guime @fguime.bsky.social Distinguished Principal Engineer @expediagroup.bsky.social . Previously of the financial industry. Co-host of
@javapubhouse, podcast for the Java dev. Co-Author of Java 7 Recipes
Graeme @graemerocher.bsky.social Senior Architect at Oracle Labs
Creator of Grails and Micronaut (https://micronaut.io)
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!
Payara Services @payara.bsky.social Jakarta EE & MicroProfile compatible, supported application servers for production and containerized deployments.
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 !
JetBrains @jetbrains.com On a mission to make software development a more productive and enjoyable experience. Make it happen. With Code.
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.
Marcus Biel @bielmarcus.bsky.social Creator of a free Java Youtube course, international speaker, @dev_champions, #ADHD, indie hacker 
Sven Peters @svenpet.bsky.social Tech Culture Advocate at 🧢 Atlassian
NYJavaSIG @nyjavasig.bsky.social The NYJavaSIG, a Java user group based in the NY Metro area, brings together Java developers from the tri-state region and worldwide.
Warszawa JUG @warszawa.jug.pl Java User Group in Warszawa, Poland. https://warszawa.jug.pl/- P @paulfife.bsky.social @paulfife.bsky.social
Devoxx UK @devoxx.uk A Developer Community Conference
Kim Fletcher @kimfletcher.bsky.social Managing Director & co-founder of Re:Build | Event Operations & Community Leader | Ran Devoxx UK | Leader of the Virtual Java User Group
Simon Maple @sjmaple.bsky.social 
Heinz Kabutz 🏝 🇬🇷 🇿🇦 ☕️ @heinzkabutz.com Author of mildly entertaining and somewhat useful #Java Specialists’ Newsletter. Email is heinz at javaspecialists dot eu.
Jakub Chrzanowski @chrzanowski.info 🥑 Lead Developer Advocate @JetBrains.com for IntelliJ Platform
🧩 Helps make JetBrains products extensible
🛠️ Builds useful stuff
🦬 Suffers from yak shaving
George Adams @gdams.bsky.social Go Group Manager @Microsoft, Java Champion, Chairman @adoptium.
Thoughts are my own.
Dion Almaer @almaer.com Bringing nuance to a knife fight 🔪, surprisingly older than @bgalbs
Past: Ajaxian, Shopify, Google, Mozilla, webOS, and more!
Andres Almiray @andresalmiray.com I code for fun and help others in the process. Java Champion. Co-founder of Hackergarten & Hack.Commit.Push. Creator of JReleaser
🚀
Anton Arhipov @antonarhipov.bsky.social Developer Advocate @ JetBrains
https://antonarhipov.com
#java #kotlin #programming
Brian Benz @bbenz.bsky.social Microsoft AI Advocate. Certified stunt coder
Geert Bevin @gbevin.uwyn.com Director of Software Development at Moog Music, Principal Software Engineer at Roger Linn Design, Father of MPE, Board Member at Asheville Music School, Creator of RIFE2 & bld, Java Champion, Maker, 3D Printing & Design, Singer, Guitarist, Kung Fu, Tai Chi
Bruno Borges @brunoborges.bsky.social Empowering developer communities.
Jeanne Boyarsky @jeanneboyarsky.bsky.social Software developer in NYC, Java Champion, FIRST FRC mentor, CodeRanch moderator, Toastmaster. Author of OCP Java Certification Study Guides and "Real World Java: Helping you Navigate the Java Ecosystem".
More about me at https://linktr.ee/jeanneboyarsky
Tom Cools @tomcools.be DevRel @Timefold | Conference (Keynote) Speaker 🗣️ | #Java Champion | @BeJUG Organizer | Kind of a weird guy 😅
Holly Cummins @hollycummins.com @IBM - Senior Principal Software Engineer, working on Quarkus. Java Champion, developer, author, #cloud surfer and maker. My views are my own.
Eric Deandrea @ericdeandrea.dev @java-champions.bsky.social | Sr. Principal Software Engineer (@quarkus.io) @IBM | speaker | author | @bostonjavausers.bsky.social Vice Chair & board member | tinkerer | boater | black belt in martial arts | Opinions are my own
Frank Delporte @frankdelporte.be Senior Technical Writer at Azul - Author of “Getting Started with Java on the Raspberry Pi” - Blogging, writing, podcasting, and experimenting about all things #Java and #JavaOnRaspberryPi - Java Champion
Brian Demers @bdemers.io Father, Geek 🤓, Beekeeper 🐝, Java Champion ♨️, and Developer Advocate 🥑 at Gradle
Marit van Dijk @maritvandijk.bsky.social 💻 Software Developer | ☕🥑 Java Developer Advocate @ JetBrains | 🏆 Java Champion | 🎤 International Keynote Speaker | 👩💻 Pronouns: She/her
https://maritvandijk.com/
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 🏔️
Markus Eisele @myfear.com Developer, turned to consulting, developer relations, sales, and landed in marketing.
Writing books for #Oreilly.
Into Java, Kubernetes and such.
Legal called to tell you that I'm not officially speaking for IBM.
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
Chris Engelbert / noctarius - エンゲルベルト クリス @noctarius.com DevRel / Tech Marketing @ simplyblock.io
Noctarius ツ, #Devrel, #Opensource, #JapaneseFood, #JavaChampions
Ex Timescale, clevabit, Instana, Ubisoft, Hazelcast
Views are my own
Linktree: https://linktr.ee/noctarius2k
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
Viktor Gamov @gamussa.dev Principal Developer Advocate at @confluent.io, ☕️Java Champion, Co-author Kafka in Action, Flink aficionado
Trisha Gee @trishagee.bsky.social Java Champion, Developer Productivity Advocate, Author
https://trishagee.com
https://linktr.ee/trisha_gee
🇪🇸🇬🇧🇪🇺
David Gómez G. @dgomezg.bsky.social JavaChampion. @madridjug.es co-organizer. I love doing stuff with other people, learning from others & sharing what I know.
Rodrigo Graciano @graciano.bsky.social Java Champion, NYJavaSIG leader, Software Engineer
Ivar Grimstad @theguywiththeduketattoo.com Java Champion | Jakarta EE Developer Advocate | The guy with the Duke tattoo
https://jakarta.ee/community/developer-advocate/
Gerrit Grunwald @hansolo.eu JUG Founder, Java Champion, IBM Champion, ❤️ Java, coding in general, mountain biking and photography...may the force be with you... http://gravity-labs.de
Arun Gupta @arungupta.bsky.social 
Mark ⚡️Heckler @mkheck.bsky.social Computer scientist & MBA, pilot, inglés y español. Java Champion, Google Dev Expert in Kotlin, Rockstar presenter, author of Spring Boot: Up & Running. Ex Oracle, Pivotal, VMware, Microsoft, Moderne
Daniel Hinojosa @dhinojosa.bsky.social Developer of sorts: Typically Java, Scala, and Haskell once in a while.
Michael Hunger @mesirii.de Developer Advocacy & Labs at Neo4j.
Happy dad of 3 girls ADHD GraphAddict JavaChampion
Code http://github.com/jexp
Words http://medium.com/@mesirii
Network http://de.linkedin.com/in/jexpde
Angie Jones @angiejones.tech Tech's Favorite Auntie
VP Eng, AI Tools & Enablement @ Block
#techgirl1908
evanchooly @evanchooly.bsky.social Java Champion. Kotlin fanatic. Bit twiddler. New Yorker. Pronounces it jif. SSE at @Datadog. @evanchooly@mastodon.social
Josh Long 🍃 @starbuxman.joshlong.com Spring Developer Advocate
Java Champion
Kotlin Google Dev Expert
https://YouTube.com/@coffeesoftware
https://github.com/joshlong
Dervis Mansuroglu @dervis.bsky.social Leading the Norwegian JUG in Oslo, Java Champion, speaker, developer and principal officer at NAV IT (Norwegian gov).
Simon Martinelli @martinelli.ch Java Champion, Vaadin Champion, Oracle ACE Pro, Published Author, International Speaker, Programming Architect, and Lecturer for AI-driven Software Engineering, Software Architecture, Java, Persistence, and DevOps.
https://martinelli.ch
Rustam Mehmandarov @rustam.no Passionate computer scientist 📍🇳🇴
Java Champion ☕ | Google Developer Expert (GDE) for Cloud ⛅ | Docker Captain 🐳 | Public speaker 🎙️ | Mentor & Community leader 🌟 | All things Java, Cloud, AI/ML, data, & open source | Ex-leader of JavaZone & javaBin.
Eddú Meléndez Gonzales @eddumelendez.bsky.social 🇵🇪 Java Chavo, Software Engineer and Open Source Contributor. Working on Testcontainers. Opinions are my own.
Ana-Maria Mihalceanu @ammbra1508.bsky.social
Java Champion Alumni | Architect| Sr. Developer Advocate @Oracle 🇳🇱 | Speaker | Co-founder@BucharestSCC. Opinions are my own. 
Gunnar Morling @gunnarmorling.dev Technologist @ Confluent · Ex-lead of Debezium · Spec lead of Bean Validation 2.0 · Creator of Hardwood, kcctl, JfrUnit, MapStruct · Java Champion · morling.dev · 🚴
Maarten Mulders 💙💛 @mthmulders.bsky.social Architect, developer, trainer & speaker @ Info Support. Also Java Champion and Oracle ACE Pro. Other: food, music & photography. Views are my own; interpretations are yours.
Charles Oliver Nutter @headius.bsky.social JRuby co-lead, Java champion, Ruby hero, JavaOne Rockstar, international traveler and speaker. Book me for your next event! I depend on your donations and sponsorships! https://github.com/sponsors/headius
Daniel Oh @danieloh30.bsky.social Java Champion, CNCF Ambassador & TAG DevEX Co-Chair, Microsoft MVP, Developer Advocate, Technical Marketing, Keynote Speaker, Published Author bit.ly/danielohtv
Nicolai Parlog @nipafx.dev Java enthusiast with a passion for learning and sharing. Developer Advocate at Oracle but views and posts are my own.
Pratik Patel @prpatel.dev master builder of nachos
software . technology . not a bot
Julien Ponge @julien.ponge.org Software enthusiast | Scientist | #JavaChampions | Personal account, not the views of my employers | I will not discuss much politics here
https://julien.ponge.org/
🥼 Piotr Przybył @piotrprz.bsky.social Software Gardener. Java Champion. Docker Captain. Edutainer. Speaker. Trainer. Художник. Honorary Bavarian. 👨💻👨🌾
#Java #Testcontainers #Linux #Programming
softwaregarden.dev
Views are mine, impressions are yours.
Matt Raible @mraible.bsky.social Software engineer with a passion for skiing, mountain biking, VWs, and good 🍺. Driving a '66 21-window & a '90 Syncro. Made in Montana. https://raibledesigns.com
Ixchel Ruiz @ixchelruiz.bsky.social Assiduous traveler, Software Developer, Java Champion, CDF Ambassador, Open Source advocate, public speaker and mentor.
Antoine Sabot-Durand @antoine.sabot-durand.net Java Champion, boardgames and rpg addict. I work at @SCIAM.fr. Former Jakarta EE CDI spec lead. I’m also the co creator of the @vidocq.dev MicroProfile implementation.
jbáruch 🎩 @jbaru.ch Head of DevRel at @tweetsbyport - the Agentic SDLC Platform. Co-author of #LiquidSoftware and #DevOps Tools for #Java Developers. Java Champion, MSFT MVP for AI, CNCF Ambassador Alumni.
Brian Sam-Bodden (BSB) @bsbodden.bsky.social Polyglot Programmer, Technologist, Author, and Entrepreneur. Applied AI/ML and Data Science. Former Principal Applied AI Engineer at Redis. Former Developer Advocate 🥑 @Java_Champions
Oleg Šelajev @shelajev.bsky.social Oleg Šelajev is a developer advocate at Docker working mainly on developer productivity, Testcontainers, improving how we set up local development environments and tests, and building applications with AI parts. Developer. Author. Speaker. Java Champion. D
Nate Schutta @nts.bsky.social Java Champion. Speaker. Author. Architecture Monkey. Storyteller.
http://ntschutta.io
Ray Tsang @saturnism.me Loves Java, Cloud, and Developer Productivity. Java Champion.
Martijn Verburg @karianna.bsky.social Making tech co-exist with Humans - Principal Group SWE Manager (Java, Python, Go) @ Microsoft, former CEO @ jClarity (acq. by MSFT) formerly Diabolical Developer, Author, Speaker, Angel Investor, Exec Coach, Non-Exec director, Owner of Low Key Cocktail Bar
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
Michael Vitz @michael.vitz.me Java Champion working as Senior Consultant at INNOQ
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
James Ward @jamesward.com Just another nerd with a podcast: happypathprogramming.com
And a book:
effectorientedprogramming.com
Edson Yanaga @yanaga.io Empowering developers worldwide as Staff Developer Relations Engineer, Wallet Lead, @Google. Java Champion and former 7x Microsoft MVP. Opinions are my own.
Guillaume Laforge @glaforge.dev 🥑 Developer Advocate for Google Cloud ☁️
🧠 Focusing on Generative AI 🤖
⭐ Co-founder of the 🪶 Apache Groovy programming language
☕ Java Champion 🏆
📣 Co-host of Les Cast Codeurs Podcast
🐘 @glaforge@uwyn.net on #Mastodon
Ken Kousen @kousenit.com Author, speaker, software developer, and technical trainer. Java Champion, teaches Java, Groovy, Gradle, Kotlin, Android, Spring. Publishes "Tales from the jar side" newsletter and YouTube channel
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
Kevin Dubois @kevindubois.com 🥑 Dev Advocate @IBM | Cloud Native Developer | Java Champion | Author | Keynote Speaker | Open Source | Based in the Swiss Alps 🏔️🇨🇭
Benjamin Muskalla @bmuskalla.dev ⛱️ currently https://poolside.ai/
🎤 Speaker https://bmuskalla.dev/talks/
☕ Java Champion
👾 Former @github.com Copilot, Gradle, Tasktop, EclipseSource
🧠 All opinions come from my training data
Karl Heinz Marbaise (he/him) @khmarbaise.bsky.social Java Champion
Apache Maven PMC
Apache Software Foundation Member
Mojo Haus Member
Java Developer,
CI / CD Fan
Freelancer
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
Marcin Grzejszczak @toomuchcoding.com Java Champion. Working on observability and contract testing - Micrometer, Spring Cloud Contract.
Gail Anderson @gail-asgteach.bsky.social Java Champion, Book Author, Work with Java, JavaFX, Gluon, GraalVM, Mobile Apps
Jorge Hidalgo 💾💾 /home/deors @deors.bsky.social lecturer in recent runes, father of 2, husband, whistle player, videogames, geek, all things software & platform engineering, java, cloud & devops at Accenture | MálagaJUG Lead | Java Champion | OpenSouthCode.org
@mehmandarov.bsky.social @mehmandarov.bsky.social This account is not in use. Follow me at @rustam.no instead.
Johan Vos @johanvos.bsky.social Java Champion, Gluon and LodgON.
co-lead OpenJFX, lead OpenJDK-Mobile . Java for science, Quantum Computing. PhD
Rabea Gransberger @rgransberger.bsky.social Mother of 2 Kids (2019, 2021), Java Developer, Java Champion
Adam Bien @adambien.blog AWS Hero, JavaONE Rockstar, Consultant, Java Champion
about: https://about.adam-bien.com
linkedin: https://www.linkedin.com/in/adam-bien
trainer: http://airhacks.live and http://airhacks.io
podcaster: http://airhacks.fm
yt: http://youtube.com/@bienadam
Clement Escoffier @cescoffier.bsky.social Quarkus project co-lead. @Redhat Distinguished Engineer @IBM. Java Champion. #quarkus #vertx #smallrye. Rabbit shepherd. Opinions are mine, not of my employer.
Roy van Rijn @royvanrijn.com Director of OpenValue Rotterdam, is a @Java_Champions, founder of Rotterdam JUG, public speaking: Java, AI, math, algorithms
Sébastien Blanc @sebi2706.bsky.social My job is to make developers happy.
Technical Director @sciam.fr
Java champion, OSS, husband and father.
5 🐱
Falk Sippach @sippsack.bsky.social Software architect @embarced, organizer @JUG_DA, @CyberLandConf, @iSAQB, @SpeaKonf, @devsonthestage, member of @Java_Champions
Sven Reimers @sreimers.bsky.social Java Champion,
JUG Leader JUG Bodensee, JTaccuino
Apache NetBeans PMC, OpenJFX author,
Systemengineer @ Airbus Defence and Space