Geoffrey De Smet @geoffreydesmet.bsky.social PlanningAI expert, Timefold co-founder, OptaPlanner creator, complex scheduling and routing, Operations Research, Java, Kotlin, open source, international speaker
Johannes Bechberger @mostlynerdless.de OpenJDK hacker at SapMachine, works on hello-ebpf for fun
Devoxx UK @devoxx.uk A Developer Community Conference
Una Kravets @una.im Making the web more stylish ✨🎨 DevRel Lead for CSS & Web UI @ Google Chrome. Cohost of the CSS Podcast & host of Designing in the Browser. 🌎 una.im 
Cédric Champeau @melix.champeau.me Il/Lui. Ingénieur informatique chez #Oracle (Les opinions exprimées ici sont les miennes). Astronome amateur. Auteur de #JSolEx. Conseiller municipal minoritaire à Montaigu-Vendée.
Pasha Finkelshteyn 🇩🇪⬅️🇷🇺(✡️) @asm0dey.site Developer advocate for @BellSoft
Love people, both listen and talk to
https://asm0dey.site/
Johan Hutting @johanhutting.bsky.social Senior software engineer / Developer advocate @ ING, co-organiser JUG Noord and ING backend summit.
Opinions expressed are my own.
Brian Goetz @briangoetz.bsky.social Java Language Architect at Oracle. Author, Java Concurrency in Practice (http://amzn.to/2nzZnkl). Also, cats.
Belgian Java User Group @bejug.bsky.social Java now, Java always :)
Ethan Mollick @emollick.bsky.social Professor at Wharton, studying AI and its implications for education, entrepreneurship, and work. Author of Co-Intelligence.
Book: https://a.co/d/bC2kSj1
Substack: https://www.oneusefulthing.org/
Web: https://mgmt.wharton.upenn.edu/profile/emollick
CentOS @centos.org The Community Enterprise Operating System
@podmanio.bsky.social @podmanio.bsky.social 
FOSDEM @fosdem.org https://fosdem.org
Maggie Appleton @maggieappleton.com Staff Research Engineer @githubnext.com. But actually a designer.
Adores digital gardening, end-user development, and embodied cognition. Makes visual essays about design, programming, and anthropology.
📍 London
🌱 maggieappleton.com
Bryan Cantrill @bcantrill.bsky.social Co-founder and CTO of Oxide Computer Company. According to Field of Schemes, "tech exec and Oakland A's fan" -- but more of an Oakland Ballers fan now.
Grady Booch @booch.com scientist, storyteller, philosopher
computingthehumanexperience.com
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
🚀
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
Pierre Chapuis @catwell.info https://catwell.info
Software @ https://finegrain.ai/. AI and Distributed Systems.
Known as @pchapuis or @catwell elsewhere.
antirez @antirez.bsky.social Reproducible bugs are candies 🍭🍬
I like programming too much for not liking automatic programming.
JTaccuino @jtaccuino.github.io A pure Java experience for people into notebooks like Jupyter - https://github.com/jtaccuino/jtaccuino
Jim Grisanzio @grisanzio.bsky.social Building FOSS Communities https://grisanzio.com/ #foss #opensource
Cedric Clyburn @cedricclyburn.com Developer Advocate at Red Hat • Organizer KCD New York • Previously at MongoDB • containers, k8s, & everything in between
Víctor Orozco @tuxtor.bsky.social Java Champion, Oracle ACE Pro, I like to code
Cay Horstmann @horstmann.com Nothing to see here...keep moving! Specifically, to Mastodon: https://foojay.social/@cayhorstmann
Ludo @ludoch.bsky.social Java, Google, App Engine, Cloud Run, PaaS, Developers.
9ième, Pigalle, SOPI, Vallée de Silicone, SF.
Jonathan Giles @jonathangiles.net Principal Java Architect for libraries at Microsoft and a Java Champion. Previous: Consulting Member of Technical Staff on Java at Oracle/Sun Microsystems.
@bercut2000.bsky.social @bercut2000.bsky.social 
Emily Jiang @emilyjiang.bsky.social Java Champion, Book Author, MicroProfile Guru, Jakarta EE supporter
Edwin Derks @edwinderks.bsky.social Java Champion | Architect | Writer | Speaker | Contributor for Jakarta EE and MicroProfile | Car Maniac | Extreme Dance & Metal Music Fan |
Michael Minella @michaelminella.com Husband, Father, Director at Broadcom responsible for @spring.io, a Java Champion, curmudgeon on OffHeap, author, photographer, maker. Thoughts are my own. (he/him)
Nacho Cougil @icougil.bsky.social Founder of @BarcelonaJUG | Cofounder of @devbcn.bsky.social | Java Champion | Principal Software Engineer at @dynatrace |
Java & JVM stuff, forensics, irony & more
Maurice Naftalin @mauricenaftalin.bsky.social 
Jean Bisutti @jeanbisutti.bsky.social Software engineer at Microsoft, QuickPerf, Java Champion
Mary Grygleski @mgrygles.bsky.social 
Erin Schnabel @ebullient.dev Java Champion. Distinguished Engineer and maker of things @ Red Hat. Former @IBM. Chairperson of the Commonhaus Foundation.
Sebastian Daschner @daschners.bsky.social Helping developers solving the challenges of enterprise software.
David Heffelfinger @ensode.bsky.social Java Champion, Apache NetBeans PMC Member, Technical Author, Jakarta EE Consultant and Instructor.
Totto @javatotto.bsky.social 
Ivan St. Ivanov @ivannov.bsky.social Founder and senior programmer @ VIDA Soft, Open source fan, Bulgarian JUG lead, jPrime conf organizer, Java Champion
Prof. Dierk König @dierk-koenig.bsky.social Prof. at @FHNW, Groovy in Action, Java Champion, Web, Frege, Artist
Simon Maple @sjmaple.bsky.social 
Vincent Mayers @mayers.io DevRel and Tech Community Leader, Java Champion, MicroProfile.io steering committee, Speaker, Organizer of Devnexus and Atlanta Java Users Group
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.
Mario Torre @mariotorre.bsky.social Follow me on:
https://mario-torre.bandcamp.com
https://mastodon.social/@MarioTorre
The opinion expressed here are my own. Like and share doesn't necessary mean I agree with the content.
I'm leftist and antifascist. No human being is illegal. #fckafd
Deepu K Sasidharan @deepu105.bsky.social @jhipster co-chair.
Developer 🥑 @okta.
Polyglot dev/Speaker/Author.
@Java_Champions.
Java, Rust, JS, DevOps.
ADHD.
Simone Bordet @simonebordet.bsky.social Jetty/CometD Lead. Java and JVM. Web/Network Protocols (HTTP/1/2/3, WebSocket, QUIC). Some CrossFit.
Yuichi Sakuraba @skrb95.bsky.social Java Developer
Java Champion
@steveonjava.bsky.social @steveonjava.bsky.social 
Simon Willison @simonwillison.net Independent AI researcher, creator of datasette.io and llm.datasette.io, building open source tools for data journalism, writing about a lot of stuff at https://simonwillison.net/
Stuart Ritchie @stuartjritchie.bsky.social 
sam mcallister @sammcallister.bsky.social some people call me smca. technical non technical member of staff at @anthropic. prev @stripe. also on http://instagr.am/sam.travel. 🇮🇪
Anthropic @anthropic.com We're an Al safety and research company that builds reliable, interpretable, and steerable Al systems. Talk to our Al assistant Claude at Claude.ai.
OpenJDK @openjdk.org The place to collaborate on an open-source implementation of the Java Platform and related projects · https://openjdk.org
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
Tamas Cservenak @cstamas.bsky.social Resurrecting dead software, Apache Maven and alike.
Olivier Lamy @olamy.bsky.social Speaking English w/ strong French accent #OpenSource #Apache #jetty #jenkins #ultrarunning. Living #downunder @brisbanecityqld. Father of 4 husband of 1🇦🇺🇫🇷
Brian Fox @brianfox.bsky.social Sonatype CTO
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
Jakarta EE @jakarta.ee Hosted by the @eclipse.org, Jakarta EE is focused on enabling community-driven collaboration and open innovation for the cloud.
https://jakarta.ee/
Laur Spilca @laurspilca.bsky.social A #java guy. Pacifist 🕊
Laurence Tratt @ltratt.bsky.social Shopify / Royal Academy of Engineering Research Chair in Language Engineering. https://tratt.net/laurie/
Devoxx Belgium @devoxx.com Devoxx Belgium 2026 : 5 - 9 October in Antwerp
tiffany jernigan 🐦🔥 @tiffanyfay.dev 👩💻🥑 @grafana.bsky.social
☸️ #cncf ambassador
💻 ex- vmware, amazon, intel, docker
🎓 electrical engineering georgia tech
💭 opinions:mine
📸 instagram.com/tiffanyfayj
🇺🇸 seattle, wa
🔗 linktr.ee/tiffanyfay | tiffanyfay.dev
Rafael Winterhalter @rafaelcodes.bsky.social software consultant who likes static typing, coding at http://github.com/raphw 🇧🇻🇩🇪🇪🇺
Kelsey Hightower @kelseyhightower.com Minimalist
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.
Gunter Rotsaert @mydeveloperplanet.com Senior Systems Engineer @TriOpSys ⚡ Blogger ⚡ Musician ⚡ Belgian🇧🇪 living in Holland 🇳🇱
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!
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 #JavaOnRaspberryPi - My "social media focus" is on Mastodon at foojay.social/@frankdelporte, and I will crosspost here. Sorry for the double content if you follow me on both...
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 🏔️
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
Viktor Gamov @gamussa.dev Principal Developer Advocate at @confluent.io, ☕️Java Champion, Co-author Kafka in Action, Flink aficionado
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/
Chandra Guntur @cguntur.bsky.social Hoopy Frood
Java Champion. NYJavaSIG & GardenStateJUG Leader
#Saganist #BeKind #UsualSuspects #TrollBlocker 🖖🏼😎 🇱🇷
अहं ब्रह्मास्मि
Motto: docendo discimus
Website: https://cguntur.me
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
Jason Lee @jasondlee.bsky.social Christian. Husband. Father. Bassist. Martial Artist. Java Champion. Nashville recording artist. Software engineer @ Red Hat. @OKCJUG President. Opinions are mine, but can be yours.
evanchooly @evanchooly.bsky.social Java Champion. Kotlin fanatic. Bit twiddler. New Yorker. Pronounces it jif. SSE at @Datadog. @evanchooly@mastodon.social
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, International Speaker, Programming Architect, and Lecturer for 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.