#GeeCON is now open for CFP submissions for the 2026 edition, happening on May 14–15! Step in, share your story, and inspire the community — submit your talk proposal on #Java, #AI, #SoftwareEngineering, #Microservices, #Cloud, #SoftwareCraftsmanship, or #Agile. 2026.geecon.org/cfp/

Save the dates – 14–15 May 2026. GeeCON is coming better than ever! 2026.geecon.org

🎥 Access GeeCON 2025 recordings & help our little friend Kuba! If you couldn’t attend GeeCON, you can still donate ~35 EUR at 2025.geecon.org/recordings/ to get full access to the videos. Let’s show the strength of the Java community once again! 💪 #fundraiser #charity #geecon

127 snippets selected for @geecon.bsky.social talk "The Best of Java Shorts Show: 100 Snippets in 45 Minutes" See you very soon in Room 1. #java #geecon

It is real! @adamdudczak.bsky.social @ @geecon.bsky.social ! Today in Cracov! Only in cinema! Be there!

@geecon.bsky.social Go!

Familiar with Java streams? Time to take the next step! Ron Veen (@ronveen) at #geecon will reveal the secrets of Stream Gatherers and how to create advanced custom operations that transform data processing. Expect hands-on insights! 2025.geecon.org/speakers/inf...

Domain-Driven Design sounds great, but are we always building good models? Vadzim Prudnikau at #geecon will show how to avoid traps and mistakes that lead to… useless models. Get ready for some hard truths! 2025.geecon.org/speakers/inf...

Let’s welcome Viktor Gamov from Confluent, who will show at #geecon 2025 that stream processing in Java is more than tech – it’s a real adventure. Want to see how the pros do it? Don’t miss it! 2025.geecon.org/speakers/inf...

Join #geecon 2025 and meet Otavio Santana – Java master, open source leader, and Duke’s Choice Award winner! Discover how he simplifies database operations for modern architectures and inspires you to reach higher. Learn from a true innowator shaping the future. 2025.geecon.org/speakers/inf...

Thrilled to have Michał Gawarzyński, Engineering Manager @Allegro, join us to share his insights on “The Art of Trade-off”. Learn how Allegro’s marketing automation system processes 25,000+ incoming events... 2025.geecon.org/speakers/inf...

Excited to welcome Bazlur Rahman (@bazlur.ca) – Java Champion, author, and speaker – to our stage! Join his session, “Java + LLMs: A Hands-on Guide to Building LLM Apps in Java”, for a deep dive into harnessing the power of Java for large language model applications. 2025.geecon.org/speakers/inf...

Meet Piotr Łaskawiec at #geecon 2025! JVM expert and pragmatic problem-solver reveals how GenAI can work smoothly in your app. Join us and experience the future of software! 2025.geecon.org/speakers/inf...

Mads Opheim (@madsopheim.com) is about to take the #geecon stage! With political insight and a passion for modern practices, he’ll show how diverse experiences turn a developer into a leader who inspires others. 2025.geecon.org/speakers/inf...

Dylan Beattie (@dylanbeatt.ie) is about to take the keynote stage at #geecon! 🤟 With his unique blend of tech expertise and rockstar flair, he'll show you how to become a coding legend. Get ready for a session that combines code, comedy, and rock 'n' roll! 2025.geecon.org/speakers/inf...

Meet Andrus Adamchik at #geecon 2025. He will show you how to wield Java data like a Swiss Army knife — versatile, powerful, and indispensable. Get ready for insights that will sharpen your code and your thinking! 2025.geecon.org/speakers/inf...

A big thank you to Allegro (allegro.tech) for joining #geecon as a Gold level sponsor once again! 2025.geecon.org/partners/all...

How do you handle 500TB of audit logs without breaking the bank? In his #geecon talk, Jacek Marmuszewski will show how cloud-native architecture and smart DevOps practices make it possible — fast, scalable, and cost-effective. 2025.geecon.org/speakers/inf...

Wanna learn something new about #Scala and #Kotlin? 💻 Then don't miss the chance to meet our experts in May! 🔹 @geecon.bsky.social: @warski.org & Rafał Maciak 🔹 Scala meetup in Amsterdam: @warski.org #conference #scalameetup #java #softwaredevelopment

Are Java streams always the answer? Maurice Naftalin (@mauricenaftalin.bsky.social), author and Java expert, will share his insights at #geecon. Discover the strengths and limitations of streams in real-world scenarios. 2025.geecon.org/speakers/inf...

Szymon Sadowski is about to turn your CI pipelines into a well-oiled machine! Expect practical hacks that make automation not just efficient, but downright enjoyable. Ready to develop smarter, not harder? 2025.geecon.org/speakers/inf...

Leonid Igolnik (Clari EVP of Engineering) challenges conventional thinking on #AI in software dev — with the clarity of someone who’s built at global scale. 2025.geecon.org/speakers/inf...

Take AI to the next level with Gemini 2.0! Márton Kodok will demonstrate how to create intelligent agents capable of multi-turn workflows at #geecon. Don't miss this opportunity! 2025.geecon.org/speakers/inf...

Baruch Sadogursky is bringing a fresh perspective to #geecon! Discover how insights from psychology can help developers balance speed and precision in their work. Ready to rethink your approach? 2025.geecon.org/speakers/inf...

Mateusz Rzeszutek (Staff Software Engineer at Clari) will show how Arrow + Flight SQL are reshaping how database frontends communicate. Includes a JDBC comparison and a live demo! Join him at #geecon! 2025.geecon.org/speakers/inf... #ApacheArrow #FlightSQL #Java

Great thanks Sabre Poland (www.sabre.com/locations/po...) for joining #geecon Silver sponsors once again! 2025.geecon.org/partners/sab...

The #geecon 2025 schedule is here! Packed with world-class speakers, hot topics, and unmissable sessions #java, #JVM, #AI, #FP, #cloud, #architecture, #performance, #DevOps, #TeamCulture. Dive in, plan your days, and join us for our 15th anniversary edition! 2025.geecon.org/schedule/

What if data could tell stories? Josef Goldstein will show you how words are changing the game at #geecon. Join him to explore the future of data communication! 2025.geecon.org/speakers/inf...

Artur Skowroński brings over a decade of JVM expertise to #geecon 2025! Discover how groundbreaking tools are shaping Java’s role in AI-driven development. Ready for a glimpse into the future? 2025.geecon.org/speakers/inf...

They say, "Every line of code brings us closer to innovation". We’re thrilled to introduce our Platinum Sponsor for #geecon 2025 – give it up for Tesco Technology! Say hello to their team and check out latest opportunities: www.tesco.com/careers/en-G... #TescosTomorrowMadeByYou #TescoTechnology

Emily Jiang (@emilyjiang.bsky.social) is heading to #geecon! 🚀 Get ready to rethink app modernization with AI + OpenRewrite. Discover how to build smarter, faster, better 2025.geecon.org/speakers/inf...

Please welcome Pega (www.pega.com) among #geecon 2025 Silver sponsors. Thank you! Explore more about their culture and career opportunities: 2025.geecon.org/partners/pega/

Refactoring beyond limits — Andrii Rodionov brings his JVM expertise to #geecon once again! Discover how multi-language tools are shaping the future of engineering. 2025.geecon.org/speakers/inf...

Join us in welcoming Dmytro Vyazelenko (@dyazelenko.bsky.social), Principal Consultant at Aeron, JCrete and JAlba disorganizer to #geecon. Known for pushing the limits of performance and design, Dmytro will inspire you to think beyond the obvious. Get ready! 2025.geecon.org/speakers/inf...

Chaos meets structure! Thrilled to announce Konrad Szałkowski (@smijran.bsky.social), Senior Staff Software Engineer at Visa and Java enthusiast, as a speaker at #geecon 2025! In his talk he promises to tame the wild world of concurrent systems. 2025.geecon.org/speakers/inf...

Join us at GeeCON to hear from Charles Nutter (@headius.bsky.social), a nearly 30-year Java veteran and co-leader of the JRuby project since 2005. This time he will talk about Building Efficient Dynamic Languages ​​on the JVM 2025.geecon.org/speakers/inf...

Code and a cash revolution? Sounds about right! Revolut (www.revolut.com) is teaming up with #GeeCON 2025 as a Silver Partner. Building the future of finance takes top-tier tech. Meet their team in Kraków this May and see how they're redefining the game. 2025.geecon.org/partners/rev...

Excited to announce our next speaker! Meet Bartłomiej Pisulak – Director of Cloud Quality Engineering at Pega. Bartłomiej will talk about leading in the era of #AI 2025.geecon.org/speakers/inf...

Ever thought of using IntelliJ as a game engine? Alexander Chatzizacharias (@glycin.bsky.social) will blow your mind with a creative take on game development at #geecon! Don’t miss it! 🚀 2025.geecon.org/speakers/inf...

We are happy to welcome Clari (www.clari.com) among #geecon 2025 Gold sponsors once again! Clari is growing and looking for great people to join the team. Check out their careers page (www.clari.com/careers/) to find out more about open positions. 2025.geecon.org/partners/cla...

Virtual Threads are changing the game. Want to know how they evolved? Join us and Daniel Kec at #geecon in May! 2025.geecon.org/speakers/inf...

Olga Gupalo (@olyagupalo.bsky.social), a member of the GraalVM and Graal.Cloud teams, will reveal the secrets of building efficient Java containers! Don't miss it! #java #GraalVM #Cloud 2025.geecon.org/speakers/inf...

Please welcome @FusionAuth (fusionauth.io) as #geecon 2025 Silver sponsor. Thank you!

#geecon is where the Java community compiles ideas! While we're still reviewing #c4p, you can already look forward to an amazing lineup of speakers #java, #JVM, #AI, #FP, #cloud, #architecture, #microservices Secure your ticket before Feb 21 and join us for unforgettable experience! 2025.geecon.org

Rustam Mehmandarov (@rustam.no) is a passionate computer scientist, Java Champion, and Google Developers Expert for Cloud. Join him at #GeeCON for a discussion on optimising #Java for #Cloud. 2025.geecon.org/speakers/inf...

Are functional programmers different? Do they think or do things differently? Or do they find Java ridiculous? Jaroslav Tulach will tell us about it at #geecon. Join us! 2025.geecon.org/speakers/inf...

Real testing means catching the fire before it catches you 🔥 Enter Nicolas Fränkel (@frankel.ch) at #geecon! From Testcontainers to vCluster to GKE, he'll show you how to build a CI/CD pipeline so solid that even Friday deploys will feel like a walk in the park. 2025.geecon.org/speakers/inf...

#geecon #15 (May 14-16) in Kraków is shaping up to be legendary! It’s your last chance to join the lineup for our anniversary edition—submit your talk now! Apply here 👉 2025.geecon.org/cfp/ #geecon #CFP #Java #JVM

Missed the latest #geecon monthly? No worries, here’s the latest issue! 🎉 Check out new speakers, early bird ticket updates, and more! Catch up now before it’s too late! mailchi.mp/geecon/geeco...

Scaling microservices to thousands? Join Natan Silnitsky at #geecon to learn how Wix reinvented their approach with Single-Runtime—blending serverless flexibility with monolithic cost efficiency. Simplify infra and drive innovation 2025.geecon.org/speakers/inf...