David Tanzer @dtanzer.bsky.social Programmer, trainer/coach, climber, #bonsai enthusiast
Helping clients create better software and get better at creating software
React, TypeScript, Java, Kotlin
Pronouns: he/him
https://www.davidtanzer.net
https://www.devteams.at
https://quickglance.at
Eric Evans @deadcafe.org Debian Developer, Apache Software Foundation member, Wikimedian, rider of bicycles.
Web: https://blog.deadcafe.org
Mastodon: @jericevans@mastodon.online (bridged to Bluesky as @jericevans.mastodon.online.ap.brid.gy)
Opinions expressed here are my own.
Tim Berglund @tlberglund.bsky.social VP DevRel at Confluent. Relentless hobbyist. Married to @swimflythrive.bsky.social. Father of three, grandfather of four. Believer in Christ. Opinions should be your own.
Marcin Grzejszczak @toomuchcoding.com Java Champion. Working on observability and contract testing - Micrometer, Spring Cloud Contract.
Sam Brannen @sambrannen.com Core #Spring Framework and #JUnit Committer. Principal Software Engineer at Broadcom. Proud Daddy.
Martin Fowler @martinfowler.com Software Design Loudmouth. Works for Thoughtworks. Also hikes, watches theater, and plays modern board games. He/him.
host of https://martinfowler.com
Peter Pilgrim ✅ @peterpilgrim.bsky.social Principal Engineer Consultant | Java Champion | Keynote Speaker | #TechLead | #Protest | #MicroAggression MINKY’S DAD (2014-2022) 
Mala Gupta @malagupta.bsky.social JavaChampion. Speaker. Books: http://goo.gl/QD6eeh. Co-lead
Delhi JUG. DevNexus Rockstar!
Miro Wengner @mirowengner.bsky.social @Java_Champions, @oracleace, Software Engineer, OpenJDK, @Robo4J, Published Author, father, husband, data geek and dreamer
https://partnerships.packt.com/interview-with-miroslav-wengner/
Ken Kousen @kenkousen.foojay.social.ap.brid.gy Software developer, technical trainer, and author of Mockito Made Clear, Modern Java Recipes, Help Your Boss Help You, Gradle Recipes for Android, Kotlin […]
[bridged from https://foojay.social/@kenkousen on the fediverse by https://fed.brid.gy/ ]
Dan Allen @mojavelinux.com OSS Developer, Community Builder, Asciidoctor, AsciiDoc Language, & Antora Co-Lead, Java Champion, Author, Cornell Alum, Vegan, Lacrosse Friend. Rivian referral code: DANIEL1783828
Jean-Philippe Bempel @jpbempel.bsky.social Sr Sw Eng @Datadoghq, optimize software running on JVM. Love performance topics and mechanical sympathy supporter. Java Champion & @javamissionctrl committer
Voxxed Days Zürich @voxxedzurich.bsky.social Community Developer Conference in Zurich, Switzerland, taking place on 25 March 2025.
Andrew Binstock @platypusguy.bsky.social Lead developer on Jacobin JVM (jacobin.org). Formerly editor of Oracle's Java Magazine and earlier Dr. Dobb's Journal. When not programming, I study the bass clarinet. I value your time so my comments are intended to be helpful (and occasionally humorous).
Jfokus @jfokus.se Jfokus is all about developers!
Check out the conference: http://www.jfokus.se
Stephen Colebourne @jodastephen.bsky.social Java Champion. Joda-Time. Joda-Beans. Joda-Money. JSR-310. ThreeTen-Extra. Blogger. Conference speaker. https://blog.joda.org I do not represent my employer.
Ivan St. Ivanov @ivannov.bsky.social Founder and senior programmer @ VIDA Soft, Open source fan, Bulgarian JUG lead, jPrime conf organizer, Java Champion
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/
Stéphane Épardaud @unfromage.bsky.social FroMage. Works on Quarkus, Vert.x, Ceylon for Red Hat, co-lead of Riviera JUG, Riviera DEV and is generally French…
Georgios Andrianakis @geoand86.bsky.social Principal Software @ Red Hat, working on Quarkus, Langchain4j and others
Guillaume Smet @gsmet.bsky.social Happy camper at Red Hat. Improving Quarkus one commit at a time.
Sven Peters @svenpet.bsky.social Tech Culture Advocate at 🧢 Atlassian
Bridget Kromhout @bridgetkromhout.bsky.social Cloud native open source at Azure. She/her. Likes snow, bicycles, and @joelaha.bsky.social.
Julia Evans @b0rk.jvns.ca programming and exclamation marks
blog: jvns.ca
zines: wizardzines.com
Chad Fowler @chadfowler.com GP&CTO @blueyard.com
Author, musician, speaker, developer
AT-proto based encrypted group chat protocol: @freeq.at
Regenerative Software with the Phoenix Architecture: https://aicoding.leaflet.pub/
https://chadfowler.com/
Nicolas Fränkel 🇪🇺🇺🇦🇬🇪 @frankel.ch 🧑💻 Developer and architect
🥑 Developer Advocate
✍️ Blogger @ https://blog.frankel.ch/
🎓 Eternal learner
📖 Book author at http://leanpub.com/integrationtest
Patrick Baumgartner @patbaumgartner.com Working @42talents. Spring Trainer @VMwareTanzu. Co-Organizer @VoxxedZurich, Board member of @jugch, Software Crafters Zurich & SoCraTes Conf Switzerland
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
Mattias Karlsson @matkar.bsky.social Jfokus founder, Java Champion, JUG leader, Software Vagabond, Family father, Motorcyclist & Kiva supporter. Check out @jfokus.bsky.social
José Paumard @josepaumard.bsky.social #Java #DevRel @Oracle, bartender #JEPCafe and https://dev.java, Java Champion Alumnus, JavaOne Rockstar. I post about #Java, sometimes cooking, Opinions are my own. Posts are in EN and FR.
Brian Benz @bbenz.bsky.social Microsoft AI Advocate. Certified stunt coder
Grady Booch @booch.com scientist, storyteller, philosopher
computingthehumanexperience.com
Scott Hanselman 🌮 @scott.hanselman.com I want you to win and be happy. Code, OSS, STEM, Beyoncé, T1D, open source artificial pancreases, Portland, 3D printing http://hanselminutes.com inclusive tech podcast! VP/Member of Technical Staff, Microsoft/GitHub 🌮
http://hanselman.com/about
Felipe Yanaga @theyanaga.bsky.social Google | Tar Heel | Robertson Scholar | (All things) Java
Tom Cools @tomcools.be DevRel @Timefold | Conference (Keynote) Speaker 🗣️ | #Java Champion | @BeJUG Organizer | Kind of a weird guy 😅
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
Marit van Dijk @maritvandijk.bsky.social 💻 Software Developer | ☕🥑 Java Developer Advocate @ JetBrains | 🏆 Java Champion | 🎤 International Keynote Speaker | 👩💻 Pronouns: She/her
https://maritvandijk.com/
Bruno Souza @brjavaman.bsky.social Since 1995, helping software developers improve their careers and work on cool projects with great people!
Java Evangelist
JCP Executive
SouJava Leader
Devoxx Belgium @devoxx.com Devoxx Belgium 2026 : 5 - 9 October in Antwerp
Ivar Grimstad @theguywiththeduketattoo.com Java Champion | Jakarta EE Developer Advocate | The guy with the Duke tattoo
https://jakarta.ee/community/developer-advocate/
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.
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
Ray Tsang @saturnism.me Loves Java, Cloud, and Developer Productivity. Java Champion.
Kevlin Henney @kevlin.bsky.social consultant · father · he/him · human (very) · husband · itinerant · programmer · keynote speaker · technologist · trainer · writer
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.
Nick Ebbitt @nickebbitt.com Manchester JUG leader, Cloud Native Glasgow organiser. Interested in all things platform engineering, Java and communities
Mads Opheim @madsopheim.com Sosialist, feminist, Java, Kotlin, Jakarta EE, MicroProfile. Styremedlem i Raudt Oslo. Oracle ACE. IBM Champion. Rosenborg herrar og kvinner. He/him.
Gunnar Hillert @hillert.bsky.social Spring Developer, Java Champion, 2019 Kona IRONMAN Finisher, formerly @oracle @pivotal @vmware @spring.io @atlantajug @devnexus. Plant collector. Board member at Hawaii Island Palm Society.
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
Jonathan Vila 🥑☕️ - 🇪🇺🇪🇸🇵🇷 @vilojona.bsky.social Senior Staff Developer Advocate 🥑 @Sonar | Java Champion | Oracle ACE | IBM Contributor | Conference cofounder JBCNConf & DevBcn & AI4Devs | BarcelonaJUG organiser
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.
Ana-Maria Mihalceanu @ammbra1508.bsky.social
Java Champion Alumni | Architect| Sr. Developer Advocate @Oracle 🇳🇱 | Speaker | Co-founder@BucharestSCC. Opinions are my own. 
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
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
Pratik Patel @prpatel.dev master builder of nachos
software . technology . not a bot
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.
evanchooly @evanchooly.bsky.social Java Champion. Kotlin fanatic. Bit twiddler. New Yorker. Pronounces it jif. SSE at @Datadog. @evanchooly@mastodon.social
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
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.
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.
David Delabassée @delabassee.bsky.social Senior Director of Java Developer Relations - Oracle
Views are my own!
jbáruch 🎩 @jbaru.ch DevRel Team tessl.io
Java Champion, Ex-CNCF Ambassador.
Co-author of #LiquidSoftware and #DevOps Tools for #Java Developers.
Bruno Borges @brunoborges.bsky.social Empowering developer communities.
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 · 🚴
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
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.
Abdel Sghiouar @boredabdel.bsky.social Cloud Developer Advocate @Google | Co-Host of @kubernetespodcast.com | Devoxx Morocco PC | CNCF Ambassador | Opinions are my own.
#k8s #cloud #servicemesh #security
Rabea Gransberger @rgransberger.bsky.social Mother of 2 Kids (2019, 2021), Java Developer, Java Champion
Trisha Gee @trishagee.bsky.social Java Champion, Developer Productivity Advocate, Author
https://trishagee.com
https://linktr.ee/trisha_gee
🇪🇸🇬🇧🇪🇺
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
Mark Reinhold @mreinhold.org Chief Architect, Java Platform Group, Oracle · Views are my own · https://mreinhold.org
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 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
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
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 🏔️
Bert Jan Schrijver @handle.invalid 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.
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
Max Rydahl Andersen @maxandersen.xam.dk Quarkus co-lead - Distinguished Engineer, Red Hat. Creator of https://jbang.dev
Devoxx UK @devoxx.uk A Developer Community Conference
Quarkus @quarkus.io Supersonic Subatomic Java
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
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
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, 🇺🇦
Arun Gupta @arungupta.bsky.social 
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
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
Julien Lengrand-Lambert 🥑👋 @lengrand.fr Head of Developer Relations 🇫🇷🇳🇱🇪🇺🇺🇦 ✨ Sucker for good #DX, #kotlin #GoogleDevExpert ✨, Editor 🇳🇱 #Java magazine . Growing my own food. #devrel #climate
🌐 https://lengrand.fr/
Phil Webb 🍃 @philwebb.dev Working in OSS on Spring Boot.
https://linktr.ee/phillipwebb
A N M Bazlur Rahman @bazlur.ca Java Champion 🏆 Empowering Developers through Speaking 🗣️ Writing ✍️ Mentoring 🤝 & Community Building 🌍 Published Author 📖 Contributing Editor at InfoQ and Foojay.IO
DNAstack
https://bio.site/bazlur
Books: https://bazlur.ca/books/
Nate Schutta @nts.bsky.social Java Champion. Speaker. Author. Architecture Monkey. Storyteller.
http://ntschutta.io
Erin Schnabel @ebullient.dev Java Champion. Distinguished Engineer and maker of things @ Red Hat. Former @IBM. Chairperson of the Commonhaus Foundation.
Gail Anderson @gail-asgteach.bsky.social Java Champion, Book Author, Work with Java, JavaFX, Gluon, GraalVM, Mobile Apps
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
Eddú Meléndez Gonzales @eddumelendez.bsky.social 🇵🇪 Java Chavo, Software Engineer and Open Source Contributor. Working on Testcontainers. Opinions are my own.
Celestino Bellone @cbellone.bsky.social 'The ticket guy' / Chief Ticketing Officer @alf.io
/ Chief Everything Officer @swicket.io
. Biggest fan of @raffaellar.bsky.social
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.
Peter Lawrey @peterlawrey.bsky.social Java Champion | Vanilla Java Blog (6M views) | CEO of Chronicle Software with 8 out the top 11 investment banks as clients.
Six kids from 3 to 26
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.
Antonio Goncalves @agoncal.bsky.social Principal Software Engineer @Microsoft @Azure @JavaAtMicrosoft @devoxxfr @parisjug @Java_Champions @pluralsight #BookAuthor #Jazz #Tango Us/We