Ray Tsang @saturnism.me Loves Java, Cloud, and Developer Productivity. Java Champion.
Kevin Wittek @wittek.dev Engineering Manager and Tech Lead at Docker, doing AI & Testcontainers, guitar & simracing, husband & dad
Angie Jones @angiejones.tech Tech's Favorite Auntie
VP Eng, AI Tools & Enablement @ Block
#techgirl1908
Robert Zych @zychr.bsky.social Software Engineer @ Raft, Apache Pinot Contributor, lives in Sacramento area.
Adi Polak @adipolak.bsky.social Code | Test | Deploy | Get paged
Data streaming, Machine Learning and AI app intensive Systems
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.
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.
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.
Voxxed Days Luxembourg @lu.voxxeddays.com Voxxed Days conference in Luxembourg. Organized by @yajug.bsky.social. https://luxembourg.voxxeddays.com/en/#registration
Voxxed Days Zürich @voxxedzurich.bsky.social Community Developer Conference in Zurich, Switzerland, taking place on 25 March 2025.
Devoxx Greece @devoxxgreece.bsky.social Devoxx Greece is a 3-day conference taking place from April 23rd to 25th, 2026, at the Athens Megaron International Conference Center.
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 !
Jonathan Vila 🥑☕️ - 🇪🇺🇪🇸🇵🇷 @vilojona.bsky.social Senior Staff Developer Advocate 🥑 @Sonar | Java Champion | Oracle ACE | IBM Contributor | Conference cofounder JBCNConf & DevBcn & AI4Devs | BarcelonaJUG organiser
Basil Berntsen @basil404.bsky.social Cloud architect by day. I like containers, openstack, terraform, ansible, AI IDEs, and black espresso.
By night, I build Flowdoku Sudoku.
I am a real person: handcrafted, small batch, organic posting only. No AI generated or automated communication.
Pawel Jozefiak @joozio.bsky.social I like start new things in Digital. I experiment a lot.
#ecommerce #marketing
My blog: https://thoughts.jock.pl/
Kelsey Hightower @kelseyhightower.com Minimalist
Kevlin Henney @kevlin.bsky.social consultant · father · he/him · human (very) · husband · itinerant · programmer · keynote speaker · technologist · trainer · writer
Balkrishna Rawool @balarawool.bsky.social Java | Spring | OOP & FP |
Debugging apps using System.out.println() since 2003.
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
Ko Turk @handle.invalid 🦊 Voxxed Amsterdam conference organiser --> amsterdam.voxxeddays.com
👥 JUGLeader @CodeLabJUG
🧑💻 Working @CodeLab
🎤 Speaker, talks about #Green #Java #Kotlin
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
JobRunr @jobrunr.bsky.social An easy way to perform background #job #processing in #java. Distributed and backed by persistent storage. Open-source and free for commercial use.
Moderne.ai @moderneai.bsky.social Deterministic tools for humans and agents to drive code change accurately and at scale. One repo or 100,000 of them.
DBOS @dbos.dev Build reliable backends effortlessly.
Website: dbos.dev
Open source: https://github.com/dbos-inc/dbos-transact-py
Justin Abrahms @justin.abrah.ms Aspiring solarpunk. Decentralized/local first curious. Good computer programmer. He/they.
Harry Pierson @devhawk.net Passion * Technology * Ruthless Competence
Husband & Father
Engineer at @dbos.dev
Beer League Hockey Player
Amateur Powerlifter
He/Him
Dominik Tornow @dominiktornow.bsky.social Founder Resonate HQ | Distributed Async Await | Thinking in Distributed Systems | https://dtornow.substack.com
Loïc Magnette @lomagnette.bsky.social Java developer | AI agents with LangChain4j & Quarkus | BeJUG co-organizer | Conference speaker | Wildlife lover
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
Marcin Grzejszczak @toomuchcoding.com Java Champion. Working on observability and contract testing - Micrometer, Spring Cloud Contract.
Thomas Vitale ☀️ @thomasvitale.com Software Engineer 📚 Author of “Cloud Native Spring in Action” 🛳️ CNCF Ambassador ☕️ Java Champion 🍃 Creator of @arconia.io for Spring Boot 🎙️ International Speaker 👨💻 OSS. Work with Java and Cloud Native.
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
JChateau Unconference @jchateauunconf.bsky.social Official account of the JChateau Unconference, next edition is March 04th-08th 2026
Voxxed @voxxed.com Sharing expert knowledge on Java, JVM, Methodology, Cloud, Mobile & Future tech. Follow us for tutorials, presentations and interviews.
Morphia @morphia.dev MongoDB object-document mapper for the JVM built on https://github.com/mongodb/mongo-java-driver
Grzegorz Piwowarek @pivovarit.bsky.social Java Champion, Leader @vavr_io @WarszawaJUG
Committee @JDD_Krakow
ex @hazelcast
Dad jokes are my own.
https://github.com/pivovarit
Belgian Java User Group @bejug.bsky.social Java now, Java always :)
@steveonjava.bsky.social @steveonjava.bsky.social 
Cay Horstmann @horstmann.com Nothing to see here...keep moving! Specifically, to Mastodon: https://foojay.social/@cayhorstmann
Axel Fontaine @axelfontaine.bsky.social Creator sprinters.sh, Flyway (sold to Redgate), CloudCaptain.
Java Champion, JavaOne RockStar.
Jesse Wilson @swank.ca Programming, inclusivity, sustainability, & 🦕. he/him.
publicobject.com
Brice Dutheil @bricedutheil.bsky.social Java engineer, mockito commiter
Marc Philipp @marcphilipp.de Software engineer and @junit.org team lead, Java Champion and open source enthusiast, father, husband & family person (he/him)
Website: https://marcphilipp.de
Mastodon: https://chaos.social/@marcphilipp
JUnit Team @junit.org Shaping the future of testing on the JVM
Lari Hotari @lhotari.bsky.social OSS contributor https://github.com/lhotari, Distributed Systems Engineer. Principal Engineer at StreamNative. Apache Pulsar PMC member. Apache Software Foundation member. 🇫🇮🇨🇦🇪🇪🇺🇦
Commonhaus Foundation @commonhaus.org The Commonhaus Foundation is dedicated to supporting the growth and stability of open-source projects through collaboration and innovation. https://commonhaus.org
Manu Sridharan @manu.sridharan.net CS prof at UC Riverside in Programming Languages and Software Engineering. Original author of NullAway. https://manu.sridharan.net
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.
Matthias Bünger @bukama.bsky.social Loves #Java, JakartaEE and testing | @maven.apache.org PMC and ASF member | Slow runner 🏃♂️
Martin Bonnin @mbonnin.net Chocolate Droid Officer 🍫
Keep Android Open: https://f-droid.org/en/2026/02/20/twif.html
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.
CERN Java User Group @cernjug.bsky.social https://cern.ch/jug
TriJUG @trijug.dev Home of the Triangle Java Users Group (TriJUG) serving the Triangle region (Raleigh/Durham/Chapel Hill) of North Carolina, US. #java
Sergi Almar @sergialmar.com 
Anthony Chu @anthonychu.ca dev ➡️ dev advocate ➡️ product manager @ Microsoft on Azure Functions.
Prev. @azurecontainerapps.io & Static Web Apps.
🍁 Vancouver, BC
Opinions are mine. he/him ☁️🏒🧋🚲😷
GStreamer @gstreamer.org Open Source Multimedia Framework
Website: https://gstreamer.freedesktop.org
Forum: https://discourse.gstreamer.org/
Matrix chat: https://discourse.gstreamer.org/t/new-gstreamer-matrix-chat-space/675
Boston Java Users ACM Chapter @bostonjavausers.bsky.social Formerly the New England Java Users Group (NEJUG). Visit us on Meetup to see upcoming events and to join: https://meetup.com/nejug1
Daniel Garnier-Moiroux @garnier.wf Fiddler of things. Makes computers go beep-boop 🤖 Contributor to Spring Security. Spring Meetup Paris. 🍃
Certified Java Champignon 🍄
Ruth Suehle @suehle.bsky.social President, #Apache Software Foundation ( #ASF )
Makes lots of things & #highland dances
GeekMom.com writer
https://linktr.ee/suehle
Emily Bache @emilybache.com Software Developer, Technical Coach, YouTuber. She/her.
emilybache.com
Rob Winch @rwinch.github.io Open source enthusiast; Project Lead for Spring Security
Jack Vanlightly @vanlightly.bsky.social Researcher, advisor, writer, formal verification eng @ Confluent.
Everything data (dist sys, databases, messaging, data eng/analytics).
https://jack-vanlightly.com, https://www.hotds.dev
Credit: ESO/B. Tafresh
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
Matthias J. Sax 🦦 @mjsax.bsky.social American Homeowner 🇺🇸 | Battle Born | Go Bills 🦬 | Software Engineer at Confluent | GM of KafkaStreams 🦦 | ASF Member, Committer and PMC member (Apache Kafka, Apache Flink, Apache Storm) — Reno. Home Means Nevada.
Danica Fine @thedanicafine.bsky.social Opinions my own.
Developer Advocate. 🥑 ❄️
http://linktr.ee/thedanicafine
FrankG @frankgreco.bsky.social AI/ML Consultant and Technology Strategist, Educator, NYJavaSIG Chair, Java Champion, Musician, Writer, Obnoxious Foodie, and very bad Fisherman. #STEAMnotSTEM #Diversity
JavaLand @javaland.bsky.social JavaLand – The Java Community Conference
https://www.javaland.eu
Arc of AI Conference @arcofai.bsky.social Arc of AI Conference
Joshua Bloch @joshbloch.bsky.social Effective Java author, API Designer, CMU Prof, Swell guy.
@justinegehring.bsky.social @justinegehring.bsky.social 
Tagir Valeev @tagir-valeev.bsky.social Work at JetBrains. Java Champion. Check my Java book: https://mng.bz/671p
Apache Maven @maven.apache.org 
Ed Burns @edburns.bsky.social Beneficiary of white privilege, Ed Burns is a software stylist, speaker, and author, currently working in the server side Java space. (he/him)
http://purl.oclc.org/NET/edburns/
Quarkus @quarkus.io Supersonic Subatomic Java
Siva @sivalabs.in 💻 Software Developer || ☕ Java Developer Advocate @ JetBrains || https://sivalabs.in || https://youtube.com/sivalabs
Interested in Java, Kotlin, Docker, and Software Architecture.
Graeme @graemerocher.bsky.social Senior Architect at Oracle Labs
Creator of Grails and Micronaut (https://micronaut.io)
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
GraalVM @graalvm.org GraalVM compiles your applications ahead of time into native executables that start instantly, scale fast, and use fewer resources 🚀
Fabio Niephaus @fniephaus.com Research Manager on the @graalvm.org team at Oracle. Graal Languages, Native Image, developer tools, GraalVM developer experience. Previously at @hpi.bsky.social, @googlecolab.bsky.social, and @matonguitars.bsky.social. Views are my own.
Modern Software Engineering @modernswe.bsky.social The Modern Software Engineering Channel ➡️ https://www.youtube.com/@ModernSoftwareEngineeringYT
Adam Warski @warski.org Sharing elegant solutions to everyday problems | R&D @ VirtusLab, SoftwareMill | #AI #Scala #FP #Java | Blogger | #OSS developer
Marc Brooker @marcbrooker.bsky.social Serverless, databases, and serverless databases at AWS. Views my own.
Check out my blog: https://brooker.co.za/blog/
Justin @jaffray.bsky.social turning to the succor of modern computing machines, let us renounce all analytic tools
https://buttondown.com/jaffray justinjaffray.com
Kris Freedain @krisfreedain.com Senior Community Manager #OpenSearch & #OpenSearchAmbassador (at AWS) #OpenSource | (opinions are my own) | father | husband | #Buddhist | #meditation | garage gym #powerlifting | he/him | Portland | #BAONPDX
https://krisfreedain.com/
Elizabeth Ponce @bizzybits.bsky.social 
Anton Arhipov @antonarhipov.bsky.social Developer Advocate @ JetBrains
https://antonarhipov.com
#java #kotlin #programming
Todd Ginsberg @todd.ginsberg.com #Java and #Kotlin developer. @trijug.dev organizer. Conference speaker. Gatherers4j maintainer, Philatelist. Big fan of doughnuts and F1. Raleigh, NC He/Him 🇺🇸🇨🇦
@atlantajava.bsky.social @atlantajava.bsky.social 
Dave Farley @davefarley77.bsky.social Software Engineer, Consultant & Author.
The Modern Software Engineering Channel: https://www.youtube.com/@ModernSoftwareEngineeringYT
Support Me On Patreon: https://bit.ly/ContinuousDeliveryPatreon
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
Martin Kleppmann @martin.kleppmann.com Associate Professor at @cst.cam.ac.uk, researching decentralised systems and security protocols. Advisor to the Bluesky team. Wrote “Designing Data-Intensive Applications” (O’Reilly). he/him
ScyllaDB @scylladb.com ScyllaDB is the database for data-intensive applications that require predictable performance at scale (like @Bsky.app)! 
Madrid JUG @madridjug.es Madrid Java User Group (MadridJUG) es un grupo de desarrolladores cuyo interés es compartir el conocimiento y realizar actividades en torno a Java y la JVM
James Perkins @jamezp.bsky.social 
@wroclawjug.bsky.social @wroclawjug.bsky.social 
Kansas City Developer Conference @kcdc.bsky.social The Kansas City Developer Conference (KCDC) is Kansas City's premier educational conference for software development. Catch it August 13-15, 2025! https://kcdc.info #kcdc2025
Mark van Osch @markvanosch.bsky.social Principal Software Engineer / Java Chapter Lead / Coding a better world together @Rabobank
https://www.linkedin.com/in/markvanosch
Java User Group Hamburg @jug-hamburg.bsky.social The JUG in the North! We offer the best Hamburg weather and inquisitive Meetup participants! Info on the talks here: https://www.meetup.com/de-DE/jug-hamburg/
Bob Paulin @bobpaulin.com Thinker-doer. Developer. ASF Member. Java Champion. Dad x 4.
@montrealjug.org @montrealjug.org