CodeLab

From spaghetti code to quality software 🍝 It’s one of the challenges many of us engineers face. How do we move from messy, silly code to systems that actually work in production? At Voxxed Days Amsterdam, these speakers share lessons on building and maintaining quality software: 🎤 Ines Panker - Why smart developers write silly code 🎤 Saman Nourkhalaj - Building a legacy: The art of crafting maintainable systems 🎤 @Susivic - RAG in the wild: real-world lessons from modernizing legacy systems 🎤 Mark Dirksma & Marthijs Berfelo - Modernising the Energy Transition: How to build a Cloud-Native, Non-Blocking Registry amsterdam.voxxeddays.com #vdams26 #java #lunch

Voxxed Days Amsterdam is leveling up! 🔥 We’ve unlocked a higher scenario and invited (14) more speakers, and we’re proud of that. 🎤 Amazing speakers incoming We’ve invited experts from across the international Java and tech community, and confirmations are rolling in fast. Keep an eye on the program, new speakers are being added! 📅 Start planning your day, the schedule is filling up With more speakers joining, the two‑day program is expanding every week: amsterdam.voxxeddays.com #vdams26 #Java

🎥 @graalvm 25: what’s new? The latest GraalVM release brings big improvements in migration, performance, and developer experience. In this session from @alina_yurenko, we’ll explore what’s new in GraalVM 25, what it enables today, and get a glimpse of what’s coming next. Curious? Hit play and find out 🚀 Explore the full conference lineup: m.devoxx.com/events/vdams26… 🎟️ Secure your ticket: #ticket" target="_blank" rel="nofollow noopener">amsterdam.voxxeddays.com/#ticket #vdams26

Let’s be honest, around Valentine’s Day, most gifts only get more expensive 😉 Good news: your Voxxed Days Amsterdam ticket doesn’t… at least not right now 💙 Limited offer: Valentines deal! #ticket" target="_blank" rel="nofollow noopener">amsterdam.voxxeddays.com/#ticket A now-or-never Valentine’s deal ending soon on Monday, 23:59.

We all love Java (still in a Valentine’s mood 🤣) But if there’s one thing developers love even more… it’s when things go completely wrong 😈 A memory leak that only shows up on Friday afternoon. Streams that behave almost correctly. AI agents that… well… become a little too creative. A bit of gloating (leedvermaak) is part of the job, right? At Voxxed Days Amsterdam we’re embracing the fun side of failure, not just to laugh at it, but to learn how it makes us better developers. Expect stories, lessons, and plenty of “we’ve all been there” moments from amazing speakers, including: - @iam_carpenter, “10 Things I Hate About Java” - @jborgers, “Avoiding pitfalls with Java streams, concurrency, HTTP requests and more” - @VictorRentea , “How to trace a Java Memory Leak” - @prpatel, “How to Write Bad Java Code” - Adam Michalik, “From greenfield to minefield: How to avoid traps of creeping complexity” - @aahoogendoorn, “How to survive and thrive as a dev (team) in the exponential age of AI” The real entertainment starts when it breaks… and the real growth happens when we learn from it. amsterdam.voxxeddays.com See you at #VoxxedDaysAmsterdam 💙 #vdam #Java

Welcome to the Community & Career Track Where people, growth, and connection take the spotlight! This track is all about strengthening the human side of tech: communication, teamwork, creativity, and the energy that drives sustainable careers. Meet the speakers who will inspire this year’s conversations: 🔹 @EliHolderness (The Bennett Institute) — Language Games 🔹 Paulien van Alst (@OpenValue) — Tips and Tricks to Bring the Fun and Passion Back in Your Team! 🔹 @hannotify (@InfoSupportBV) — When Music and Software Come Together Explore the full conference lineup: m.devoxx.com/events/vdams26… 🎟️ Secure your ticket before they vanish: #ticket" target="_blank" rel="nofollow noopener">amsterdam.voxxeddays.com/#ticket This track is shaped by the (50+) community reviewers, the CFP board @KayaWeers, Simone de Gijt, @jlengrand, @MichelSchudel, @Sander_Mak, @iamsoham, @KoTurk77, @wilcoburggraaf ), and track lead @MaritvanDijk77

Welcome to the DevOps Track! 🔧 With topics ranging from reliability and local workloads to the impact of new EU rules, three experts share what’s next for DevOps: 🔹 Annie Freeman (@Coralogix ) — Un‑observable AI is Un‑trustworthy AI 🔹 Peter Smink (@RockstarsIT) — FrameworkDesktop and IncusOS, a Perfect Combination for Running LLMs Locally 🔹 @atiqamjad (Kaleido Ventures) — Understanding the EU Cyber Resilience Act: What It Means for Open Source Explore the full conference lineup: m.devoxx.com/events/vdams26… 🎟️ Secure your ticket: #ticket" target="_blank" rel="nofollow noopener">amsterdam.voxxeddays.com/#ticket This track is shaped by the (50+) community reviewers, the CFP board (@MaritvanDijk77 , @wilcoburggraaf , @KayaWeers, @jlengrand, @MichelSchudel, @KoTurk77, @Sander_Mak @iamsoham ), and track lead Simone de Gijt.

Today’s the final day To grab your Early Bird ticket for Voxxed Days Amsterdam 2026 before the price changes! If it’s on your radar, now’s the moment. amsterdam.voxxeddays.com See you soon?! #vdams26 #VoxxedDaysAmsterdam

Say hello to the Mind the Geek Track! 🤓⚡ The place where creativity meets engineering and where the most curious minds come to play with ideas, hardware, code, and everything in between. This track brings together three passionate speakers and their brilliantly geeky sessions: 🧪 Six and a Half Ridiculous Things to Do with Quarkus — @holly_cummins (@IBM / @QuarkusIO ) 🤖 How I Built My Own Intelligent Robot Arm from Scratch — @iuliaferoli (BackToEngineering) 🕹️ Emulating on the JVM — Remco Siemonsma (Remcoder / @KVK_NL ) Explore the full conference schedule here: m.devoxx.com/events/vdams26… 🎟️ Early bird closing..... #ticket" target="_blank" rel="nofollow noopener">amsterdam.voxxeddays.com/#ticket This track is shaped by the (50+) community reviewers, the CFP board (@MaritvanDijk77, Simone de Gijt, @jlengrand, @MichelSchudel, @Sander_Mak, @iamsoham, @KoTurk77, @wilcoburggraaf), and track lead @KayaWeers

Join me @VoxxedAmsterdam for a Byte Size talk 'Testing Architecture Made Simple'. Fifteen minutes packed with examples! See you there! 🚀 🚀 🚀

Excited to speak at @VoxxedAmsterdam 1-2 April on concrete solutions for building AI-powered enterprise apps. With agentic workflows we're getting into engineering and controlling, beyond 'hopefully this prompt works' 😎

Say Hello to the Development Practices Track! AI is reshaping how we code, architect, design, and secure systems and every developer is asking the same question: how do I keep up, stay relevant, and even thrive? The Development Practices track brings together four sessions that help you navigate this new reality, from AI‑driven teamwork to rethinking authorization, making security enjoyable, and uncovering Java streaming techniques you don’t want to miss: 🔹 How to survive and thrive as a dev (team) in the exponential age of AI — @aahoogendoorn (@ibood) 🔹 Stop Using JSON Web Tokens (JWTs) for Authorization! — Sohan Maheshwar (@authzed) 🔹 Make Cybersecurity Fun — Artem Makarov (@CodeNomads) 🔹 Stream tricks that you don't wanna miss! — @AichaLaafia (Groupe Havana) Explore the full schedule: m.devoxx.com/events/vdams26… 🎟️ And grab your early bird ticket before they’re gone: #ticket" target="_blank" rel="nofollow noopener">amsterdam.voxxeddays.com/#ticket This track is shaped by the (50+) community reviewers, the CFP board (@MaritvanDijk77, Simone de Gijt, @jlengrand, @MichelSchudel, @Sander_Mak, @iamsoham, @KoTurk77, @wilcoburggraaf), and track lead @KayaWeers .

Last chance: Early Bird tickets end this week! Prices go up soon, don’t miss your chance to save and secure your spot at Voxxed Days Amsterdam 😉 Get your ticket → #ticket" target="_blank" rel="nofollow noopener">amsterdam.voxxeddays.com/#ticket 👀 Curious what’s coming? Check the schedule: m.devoxx.com/events/vdams26… ⭐ Last year’s talks were rated 4 out of 5 stars Watch highlights: youtube.com/watch?v=SrtmQm… #vdams26 #VoxxedDaysAmsterdam📷

Releasing the Data & AI Track! What happens when developers start building intelligent agents? When AI boosts predictions, accessibility, and even energy awareness? The Data & AI track dives right in with: 🔹 Building AI Agents on the JVM — @antonarhipov (@jetbrains ) 🔹 Integrating AI into Your Java Applications: Spring AI Deep Dive with RAG, Tool Calling & MCP — @christzolov (@Broadcom ) 🔹 Accessibility powered by AI — Ramona Domen (@RockstarsIT ) 🔹 Can GenAI predict code’s energy use and why should we care? — @wilcoburggraaf (HighTech Innovators) 🔹 Level Up Your LangChain4j Apps for Production — @LizeRaes (@Oracle ) 🔹 Agentic Programming, this is how it's done — @JeroenEgelmeers (@sogeti ) 🔹 Building AI Agents with Spring & MCP — @JamesWard & @starbuxman (@Broadcom , @awscloud ) Explore the full schedule: m.devoxx.com/events/vdams26… 🎟️ And grab your early bird ticket before time runs out: #ticket" target="_blank" rel="nofollow noopener">amsterdam.voxxeddays.com/#ticket The Data & AI track is shaped by the (50+) community reviewers, the CFP board (@MaritvanDijk77 , @wilcoburggraaf, Simone de Gijt, @KayaWeers, @jlengrand , @MichelSchudel , @KoTurk77 , @Sander_Mak ) and track lead @iamsoham.

Can't wait to present at @devnexus on "Maven's hidden secrets to speed up your build" in early March, it's the best AI and Enterprise Java conference in the USA and you should attend. Use this code (SPEAK30) to get 30% off the ticket price! See you there?

Did you already checked the new program? m.devoxx.com/events/vdams26… talking. More building! Expect practical tooling, live demos, and sessions focused on what actually works in production. New this year: ⚡ a dedicated room for byte-size (15 minute) sessions, straight to the point 📷 a deep-dive room for 100 minute talks to go deep where it really matters Early bird tickets almost gone #ticket" target="_blank" rel="nofollow noopener">amsterdam.voxxeddays.com/#ticket

🎥 The official Voxxed Days Amsterdam teaser is here! We’re accelerating to the next level, as we dive into tomorrow’s technology and its practical use today. The goal? To share knowledge you can immediately apply in your daily work. At Voxxed Days Amsterdam, we focus on topics like: - AI in your applications – from concepts to real-world production (think hashtag#LangChain4J) - Application performance with GraalVM - Writing clean, maintainable code - Frameworks like Spring Boot and Quarkus - Advanced coding practices and modern development strategies 🔥 And because it’s Black Friday, we’ve got a special deal for you: #ticket" target="_blank" rel="nofollow noopener">amsterdam.voxxeddays.com/#ticket 📅 April 1 & 2, 2026 📍 Pathé Amsterdam (Noord) 🔗 CFP is open: [#cfp" target="_blank" rel="nofollow noopener">amsterdam.voxxeddays.com/#cfp] With already confirmed speakers (more to follow): @alina_yurenko @venkat_s @holly_cummins @VictorRentea @LizeRaes @JamesWard @starbuxman @JeroenEgelmeers #LangChain4J #Quarkus #Spring #CleanCode #Advanced #VibeCoding

🎥 Building AI Agents with Spring AI + Amazon Bedrock Curious about how Spring AI and Amazon Bedrock come together to build the next generation of AI agents? Watch the video announcement from @starbuxman (@Broadcom) and @JamesWard (@awscloud) to get a taste of what’s coming. 🔎 Want to know more after watching? Get your early bird ticket 👉 #ticket" target="_blank" rel="nofollow noopener">amsterdam.voxxeddays.com/#ticket

Ridiculous things to do with Quarkus What can you do with @QuarkusIO that you probably shouldn’t? Find out in this video announcement from @holly_cummins Expect ridiculous demos, unexpected ideas, and a whole lot of developer joy, with Quarkus and Java at the center. 🔎 Want to know more after watching? amsterdam.voxxeddays.com

Need answers? Dr. @venkat_s brain is basically java.lang.* And he’s coming to Voxxed Days Amsterdam 2026! Don’t miss his talk: Gearing Up to Java 25: Key Language Features Watch the video now and start 2026 strong! Curious? Check it all here: amsterdam.voxxeddays.com