Patrick Baumgartner

For as long as I have known Buildpacks, I always wanted to be able to change JVM vendors (Bellsoft, Oracle, Azul, etc.) easily: why `BP_JVM_VERSION` but no `BP_JVM_VENDOR` ? Well, my dream has come true thanks to the excellent Daniel Mikusa Read on: blog.paketo.io/posts/one-bu...

New IntelliJ IDEA Tech Talk episode! @antonarhipov.bsky.social and Spring AI project lead @tzolov.bsky.social unpack Spring AI 2.0: tool search, skills, and sub-agents – all built on tool calling. Plus live demos cutting token usage by ~50% and a preview of v2.1. 👉 youtu.be/ILn2GX8s1FM 👈

🚀 Today we opened the Call for Speakers and ticket sales for #VDZ27! Got a talk to share? Want to join us in Zürich? Now’s the time. 👇 vdz27.voxxeddays.ch/ #Voxxed #VoxxedZurich #VDZ27 #itwillbefun

I just ran a speed test in the sky. Amazing reception with #Starlink and #SAS. And it's basically for free!

On my way to #JAVAZONE to present one of my favorite topics Buildpacks! After so many years of trying, I made it this year into the agenda. Yay! #NoAI #SoftwareCraft

⚡ Schnellerer Start, ohne JVM-Wechsel? @patbaumgartner.com zeigt im JAX Blog, wie #ProjectLeyden mit AOT-Caching Start-up & Warm-up von Spring-Boot-Apps reduziert – inkl. JDK 24–26, CI/CD, Cache-Validierung & Security. 🔗 https://f.mtr.cool/k4svwh3jj6 #SpringBoot #jaxcon

Should sustainability be treated like performance, reliability or security? Andres Almiray speaks with Patrick Baumgartner about green software and measuring the environmental impact of applications - www.youtube.com/watch?v=Z2BN... . #JNation #Java @andresalmiray.com @patbaumgartner.com

🍃 From Chaos to Cohesion: Building Modular Monoliths in the Real World by @patbaumgartner.com @ Spring I/O 2026 ▶️ Video: youtu.be/wOKjf9gMWSw 🔗 Slides & Demos: github.com/patbaumgartn... #springio26

🤖 Agentic AI braucht mehr als Prompt Chaining. @patbaumgartner.com zeigt im kostenlosen JAX Video, wie Embabel kontrollierbare, erklärbare AI Agents auf der JVM ermöglicht. 🎥  🔗 https://f.mtr.cool/gpiymnfbnx #jaxcon #AgenticAI

Dell XPS Plus keyboard replacement completed ✅ The hardest part was surviving the endless screw side quest. Thankfully, the internet has a tutorial for literally everything 😂 No mystery screws left behind this time 😎 #SundayFunWork

Now the Java User Group in Zurich knows what's wrong with AssertJ! And also how we're working to improve things. We're still in the early stages, but I can't wait to see all this work shipped to our users 🚀 Thank you so much to everyone who joined and @patbaumgartner.com for hosting! I had a blast!

Getting ready for https://socrates.family! A few days in the Swiss mountains with fresh air, meaningful conversations, unconference sessions, kids activities, and space for spontaneous ideas. 🏔️ Learning and from and with each other. ✨ #SocratesFamily #Unconference

I always wanted to know what my #Embabel workflow looks like. That's why I created the embabel-workflow-visualizer. github.com/patbaumgartn...

Btw. this was morning three on Breakfast with a view at #DevoxxGR #dvgr26

#DevoxxGR was amazing. Today I spoke about how to do Containers without Dockerfiles but with Buildpacks! Thank you for having me at #dvgr26

@patbaumgartner.com cooking some sweet builds at @devoxxgreece.bsky.social this morning!

#DevoxxGR is in full swing. Day two just has started ✨ Say hi and let's talk #SpringBoot #SpringModulith and #SpringAI and join me tomorrow for my session on #Buildpacks!

Spring Boot 4.1.0-RC1 available now Notable new features include: - Support for OpenTelemetry SDK environment variables - HTTP Client SSRF Mitigation with InetAddressFilter - Support for LazyConnectionDataSourceProxy spring.io/blog/2026/04... #spring #springboot #java

What a day. Breakfast with a view. See you at #DevoxxGR #dvgr26

Breakfast View in Athens and getting ready for #dvgr26 #devoxxgr

The one and only #DevoxxGR is about to start. 1500 participants are joining. Enjoying the event now and looking forward to my presentation on Saturday about Buildpacks. Say hi 😊

Third time on the main stage at Spring I/O and it delivered 🚀 My talk on modular monoliths made it into the top 3 sessions of the event. Amazing people, great talks, and still my favourite conference. #SpringIO26 #SpringCommunity

Leaving Barcelona after another great @springio.net edition. Glad that I could speak again, very happy to have reconnected with so many people and hope to be at #springio27 that will take place in Valencia! 😎 Thanks to @sergialmar.com and everyone else who made this happen 🙏 #springio26

In "better late than never", I decided to write about @voxxedzurich.bsky.social maritvandijk.com/voxxed-days-...

I had so much fun at @amsterdam.voxxeddays.com last week. A big shout-out to the team and @koturk.nl and @maritvandijk.bsky.social for making it happen. I am glad I can keep so many happy memories! #VDAMS26 #voxxed #voxxedfamily

Voxxed Days Amsterdam #VDAMS26 just has started. Looking forward to two days of learning and the hallway track. Say hi and talk to me about how you tame Spring Boot 🍃🚀

On my way to Voxxed Days Amsterdam #VDAMS26 - See you in a few hours and hoping for ☀️

Had a great time speaking with @andresalmiray.com at @voxxedzurich.bsky.social last week about "Getting more out of Maven". Thanks @patbaumgartner.com and team for organising another great event! And thanks @ddoutsiopoulos.bsky.social for the amazing pictures! 🫶 #VDZ26

The photos from Voxxed Days Zurich 2026 are now available 📸 Missed it or were there? Relive the atmosphere, conversations, and shared passion for technology. Take a moment to relive it: www.flickr.com/photo... 📸 by dimitris Doutsiopoulos

Voxxed Days Zürich 2026 is officially in the books. What an incredible 10th edition! 🎉 I’m proud we welcomed over 700 participants. It’s amazing to see how this event and the community continues to grow. Huge thanks to our speakers, sponsors, and everyone who joined. #VDZ26

For the 10th edition of Voxxed Days Zurich, we decided to start things a little differently 😊 Curious how? Watch the video! When you’ve got a big screen and a cinema, you might as well have some fun with it 🎬✨ #vdz26 #itwillbefun #itwasfun #voxxed #voxxeddays

Meet the amazing team behind Voxxed Days Zürich 2026. We are so happy to have them ❤️ They are making everyone welcome and do the all the heavy lifting behind the scene. It's a real community effort 🙏 #VDZ26 #itwillbefun

Full room at voxxed day Zurich! 🤩 #vdz26

Post @voxxedzurich.bsky.social sillyness with @0.5ritter.de @patbaumgartner.com

Morgen auf den @voxxedzurich.bsky.social: @ewolff.com spricht über “Team and Software: Making an Impact as an Architect”. Architektur ist mehr als Technik. Sie entsteht im Zusammenspiel von Teams, Organisation und Entscheidungen. Wenn du vor Ort bist: schau vorbei vdz26.voxxeddays.ch/speaker/?id=...

On the road (rails) to @voxxedzurich.bsky.social 🚄! Tomorrow, Tuesday the 24th at 12 o’clock, I’ll give a talk about @jbang.dev 🎤. This is an opportunity to discover this amazing tool and some cool stuff about AI Endpoints from #OVHcloud 🤖. See you there 👋 📜 m.devoxx.com/events/vdz26...

🎤 The #BaselOne2026 Call for Papers is open! Talks & workshops on software engineering, #Java and #SoftwareArchitecture. 📍 Basel 📅 14–15 Oct 2026 ⏰ Deadline: 30 April 2026 Previous speakers include @patbaumgartner.com, @hansolo.eu and Cosima Laube. Submit: sessionize.com/baselone-2026/

Auf der #jaxcon zeigt @patbaumgartner.com , wie Du mit Embabel & GOAP kontrollierbare, testbare #AIAgents in Java- & Spring-Anwendungen baust. 🌀Kein Prompt-Chaos 🪄Keine Magic Strings 🏗️Volle Architekturkontrolle JAX |📍Mainz | 📅7. Mai 2026 |⏰10:00 - 11:00 👉https://tinyurl.com/2d5rf25b #Java

🏗️ Monolith richtig modernisieren? Im Workshop zeigt Dir @patbaumgartner.com, wie Du gewachsene Java-Systeme pragmatisch modular strukturierst. Fr 8. Mai 26 | 9:00 - 16:30 | #jaxcon |📍MZ 👉 Zum Workshop: https://f.mtr.cool/tfccrcsqxe #Spring #SpringModulith #Java #Serverside

Voxxed Days Amsterdam, 1-2 April. 🚀 I will run a 2-hour workshop on advanced Spring Boot optimisation for the cloud. Startup time, memory usage, Spring AOT, JVM tuning hands-on, and much more! Join me for amsterdam.voxxeddays... #VDA26 #voxxed #VoxxedDays #itwillbefun

Echte AI Agents brauchen mehr als Prompt-Chains 🤖 @patbaumgartner.com über #Embabel & produktionsreife Agentenarchitekturen mit Java & Spring 🤓 Jetzt lesen: https://f.mtr.cool/gzayhzoxmc #jaxcon #AI #Java #Spring #AIAgents

Time (pun intended) for some #java #observability at #VDC26 by @patbaumgartner.com !

Voxxed Days Ticino started today with a woom! I am so happy about how it turned out 😊 Turn on your audio! #VDT26 #voxxedticino #itwillbefun

Today @odrotbohm.de is running at Voxxed Days Ticino his Tactical Domain-Driven Design with Java and Spring Workshop. Of course, with JMolecules and Spring Modulith! #VDT26 #voxxed #springboot

@odrotbohm.de talks today at the JUG in Zürich about "Domain-centric? Why Hexagonal And Onion Architecture Are Answers to The Wrong Question – And What To Ask Instead". Full house on a Wednesday! Thanks everyone for joining 🚀✨❄️

Looking forward to VoxxedDays CERN on 10 February. 🚀 I will talk about Spring Boot observability with Actuator, Micrometer, and OpenTelemetry. From metrics to tracing, with real-world examples. vdc26.voxxeddays.ch/... #VDC26 #voxxed #VoxxedDays #itwillbefun

Happy Birthday IntelliJ IDEA. 🎉 25 years of evolving with us through challenges, successes, and countless lines of code. You helped make complex problems simpler and developers’ lives easier. Thank you for that. #IntelliJIDEA25