Geertjan Wielenga (@geertjanw) 's Twitter Profile
Geertjan Wielenga

@geertjanw

Senior Director of Open Source Projects @AzulSystems @foojayio (foojay.io), Amsterdam Java User Group, @TheASF @NetBeans PMC Chair, and @Java_Champions.

ID: 19857029

calendar_today01-02-2009 13:37:49

17,17K Tweet

8,8K Followers

4,4K Following

Jonatan Ivanov (@jonatan_ivanov) 's Twitter Profile Photo

I'm presenting on Observability at Devnexus in early March. It's one of the the best Java conference in the USA and you should be there too! Aaand a 40% discount on ticket prices: SPEAK40

Azul (@azulsystems) 's Twitter Profile Photo

Greetings from Devnexus! We’re here at booth #33 — come say hi if you’re in Atlanta! 👋 Learn how Azul can supercharge your #Java apps, boost performance, and save you money. Plus, we’ve got awesome swag like Duke Brick sets, #JVM hats, and more!

Greetings from <a href="/devnexus/">Devnexus</a>! We’re here at booth #33 — come say hi if you’re in Atlanta! 👋 Learn how Azul can supercharge your #Java apps, boost performance, and save you money. Plus, we’ve got awesome swag like Duke Brick sets, #JVM hats, and more!
Foojay.io (@foojayio) 's Twitter Profile Photo

CVE-2025-0851 is a newly identified vulnerability that raises important questions about potential risks in Deep #Java Library's ecosystem, details provided by Brian Vermeer Snyk on Foojay.io. foojay.io/today/path-tra… #foojaytip

CVE-2025-0851 is a newly identified vulnerability that raises important questions about potential risks in Deep #Java Library's ecosystem, details provided by <a href="/BrianVerm/">Brian Vermeer</a> <a href="/snyksec/">Snyk</a> on Foojay.io. foojay.io/today/path-tra… #foojaytip
Zoran Sevarac (@zsevarac) 's Twitter Profile Photo

Join me for the webinar at Foojay.io to find out how your @Java skills can help you to build production ready, Java native, AI models! Together with 2 more Java Champions Frank Greco and pratik patel

Zoran Sevarac (@zsevarac) 's Twitter Profile Photo

Join us for the first Foojay.io Online Webinar and learn how to build, train, and deploy AI/ML models entirely in Java -no stack switching, no Python glue code, just pure Java power. Monday, April 28th 18:00 CEST | 9AM PT Live on YouTube Speakers Frank Greco Zoran Sevarac pratik patel

Join us for the first <a href="/foojayio/">Foojay.io</a> Online Webinar and  learn how to build, train, and deploy AI/ML models entirely in Java -no  stack switching, no Python glue code, just pure Java power.
Monday, April 28th 18:00 CEST | 9AM PT Live on YouTube
Speakers <a href="/frankgreco/">Frank Greco</a> <a href="/zsevarac/">Zoran Sevarac</a> <a href="/prpatel/">pratik patel</a>
AmsterdamJUG (@amsterdamjug) 's Twitter Profile Photo

The next Amsterdam JUG lunchtime conversation brings you into direct contact with Bruno Souza! Sign up quick, limited seats: meetu.ps/e/P55zX/12MMHr…

Foojay.io (@foojayio) 's Twitter Profile Photo

"AI test generation? It's here and it can write test code fast, which is cool. But don't just trust it blindly." Jonathan Vila 🥑 ☕️ -🇪🇺🇪🇸🇵🇷 Sonar tells you all about it: foojay.io/today/ai-drive… #java code snippets included!

"AI test generation? It's here and it can write test code fast, which is cool. But don't just trust it blindly." <a href="/vilojona/">Jonathan Vila 🥑 ☕️ -🇪🇺🇪🇸🇵🇷</a> <a href="/SonarSource/">Sonar</a> tells you all about it: foojay.io/today/ai-drive… #java code snippets included!
Rafael del Nero (@rafadelnero) 's Twitter Profile Photo

🚀 Fantastic news! I've published a FREE book with 50+ real-world #Java interview questions for mid/senior developers aiming for international jobs & top salaries. 🌍💼 💻 Download now & start growing your career: #JavaChallengers #JavaCareer javachallengers.com/java-interview…

dev2next (@dev2next) 's Twitter Profile Photo

Want lower latency, faster throughput & better stability? Then attend pratik patel's session at dev2next, which dives into the key techniques for building scalable, high-performance Java apps 🚀 dev2next.com/speaker/1efff4… 🎟️ dev2next.com 🙌Code JOIN-PRATIKP-50OFF = discount

Want lower latency, faster throughput &amp; better stability? Then attend <a href="/prpatel/">pratik patel</a>'s session at dev2next, which dives into the key techniques for building scalable, high-performance Java apps 🚀

dev2next.com/speaker/1efff4…

🎟️ dev2next.com
🙌Code JOIN-PRATIKP-50OFF = discount
Foojay.io (@foojayio) 's Twitter Profile Photo

On Foojay, Miro Wengner OpenValue discusses the trajectory of machine learning and his own insights and experiences, check it out: foojay.io/today/do-we-un…

dev2next (@dev2next) 's Twitter Profile Photo

Thinking of coming to dev2next? 🚀 Make it more than just a conference. Colorado Springs is the perfect place to extend your trip into a vacation! Grow your skills. Grow your network. Grow your sense of wonder. Register now & plan your adventure! 🌄 dev2next.com