geecon

#geecon is more than just talks. Join expert-led panel discussions, explore real-world use cases, and hear diverse perspectives from top speakers shaping modern software development. From AI Agents to architecture, performance, and beyond — this is where ideas meet practice. ⏳ Only 7 days left to register! 📆 14–15 May 2026, Kraków, Poland 👉 2026.geecon.org #AI #Java #JVM #Cloud #Architecture #Performance #PanelDiscussion

Please welcome @VirtusLab as a Silver #geecon 2026 sponsor. @VirtusLab is a software engineering & tooling company, delivering scalable systems for companies around the world. They bring the AI revolution to life, testing, developing and first of all using AI-based development tools to improve the software development lifecycle. What sets them apart is a strong focus on community, open source and continuous learning. They actively contribute to the tech ecosystem, organize conferences, run reading clubs, knowledge-sharing sessions and demos almost daily. They are growing and looking for open-minded engineers — experts in their field who are also willing to learn new technologies and methodologies. Check out their offers at: careers.virtuslab.com

🚀 When your Java app is slow, are you measuring the right thing? Join Johannes Bechberger to explore the brand-new CPU-Time Profiler in JDK 25 (JEP 509) — and learn why execution time alone can mislead you. Get ready for deeper, more accurate profiling insights straight from one of the minds behind the tool. 2026.geecon.org/speakers/info.… #Java #JDK25 #Performance #Profiling

Code quality isn’t just a developer’s job 👀 Join Annelore Egger to discover how business decisions, collaboration, and communication shape the code we write. Learn how teams can reduce complexity and build software that truly scales. 👉 “Why Bad Code Quality Is Not (Only) Your Fault” 2026.geecon.org/speakers/info.… #SoftwareEngineering #CodeQuality #Teamwork

Technical debt: we all hate it… yet we all live with it. Join Tomer Gabel (@tomerg) for “Mob Rules, or: how I learned to Stop Worrying and Love Technical Debt” — a sharp, honest dive into why debt happens, why we argue about it, and how to actually move forward. Less dogma. More clarity. 2026.geecon.org/speakers/info.…

Welcome aboard, SoftNet! 🚀 We’re excited to have SoftNet with us — a team building modern, secure, and scalable IT solutions for cooperative banks and driving digital transformation in the financial sector. From e-banking to system integrations, their technology supports thousands of users across Poland every day. Glad to have you with us! 🤝2026.geecon.org/partners/softn…

Meet Szymon Sadowski at our conference 🎤 With 8+ years in software engineering (Java, cloud & platform engineering), he treats coding as craft, not rush — and believes sharing knowledge makes teams stronger. 🚀 Talk: “Reviewing the Reviewer: Better PR Feedback” What if opening a PR felt like applause, not anxiety? Learn how constructive, ego-free feedback can boost team velocity and code quality. 2026.geecon.org/speakers/info.…

🎸 Meet our keynote speaker: Dylan Beattie! “How To Be a Rockstar Developer” is more than a talk — it’s a journey from a joke programming language inspired by Bon Jovi lyrics to a global phenomenon. Expect code, creativity, and a live guitar performance 🤘 This is one keynote you don’t want to miss. #geecon #keynote #RockstarDeveloper 2026.geecon.org/speakers/info.…

Join Mete Atamel (@meteatamel) at #geecon for a deep dive into the future of AI agents! “Tour of Agent Protocols: MCP, A2A, AG-UI, A2UI” explores how emerging standards are shaping interoperability between agents, tools, and UIs. Expect practical demos, real use cases, and insights you can apply right away. 2026.geecon.org/speakers/info.…

🚀 Live coding session you don’t want to miss! Julien Topçu & Thomas Pierrain will show how to turn a spaghetti monolith into a microservices-ready modular monolith using the Hive pattern 🐝 From legacy chaos → clean architecture → extracting real microservices. #Microservices #SoftwareArchitecture #LiveCoding 2026.geecon.org/speakers/info.… 2026.geecon.org/speakers/info.…

Meet Mihaela Gheorghe-Roman, Software Architect at Systematic & Oracle ACE Associate, bringing 14+ years of experience in Java and beyond 🚀 Dive into a live, interactive session full of tricky Java snippets, surprising behaviors, and “aha!” moments. 🧩 Expect quizzes, audience participation, and hands-on problem solving — all designed to level up your Java skills. Don’t miss it! 2026.geecon.org/speakers/info.…

Excited to welcome Ivar Grimstad @ivar_grimstad)! From J2EE to Jakarta EE 11 (and beyond!), Ivar will take us on a journey through 30 years of Enterprise Java evolution - exploring modern features like virtual threads and Jakarta Data, as well as what’s coming in Jakarta EE 12 and the growing impact of AI. Expect history, insights, and plenty of live coding demos! 2026.geecon.org/speakers/info.…

Baruch Sadogursky (@BSadogursk88555) is bringing some much-needed reality check to AI coding agents 🤖 “If your AI keeps agreeing with you even when you’re wrong you’ve got a context problem.” In this talk, you'll learn how to: • turn prompts into reusable system context • make agents less “nice” and more correct • use guardrails, tests & deterministic flows effectively “You’re Absolutely Right (and Other Lies My AI Told Me)” - don’t miss it. 2026.geecon.org/speakers/info.…

We’re excited to welcome @allegrotech as #geecon Silver sponsor! 🚀 As one of Europe’s largest e-commerce platforms, Allegro builds highly scalable, distributed systems used by millions every day. From architecture and performance to DevOps and developer culture - they’re tackling challenges at true scale. Through #allegrotech, they actively share knowledge with the community via talks, workshops, and open source. Check them out 👉 2026.geecon.org/partners/alleg…

Welcome back to the stage, Jakub Nabrdalik (@jnabrdalik)! 👋 Most systems are built around data. That’s the problem. Learn how to design modules around business processes to build software that scales, performs, and stays easy to change as it grows. 2026.geecon.org/speakers/info.…

What if you could bring AI agents into your existing Spring app without rewriting everything? Arjen Poutsma will show how with the Embabel Agent Framework, extending the classic Petclinic with smart, context-aware agents that plan, reason, and integrate seamlessly with your current architecture. A must-see for pragmatic Spring devs 👇 “Teaching an Old Pet Clinic New Tricks: Introducing Agents into Existing Applications” 2026.geecon.org/speakers/info.…

What happens when managers start to disappear from engineering orgs? 🤔 At #geecon 2026, Agnieszka Lasyk will explore how AI, shifting structures, and real-world pressures are reshaping roles in her talk: “4xx: The Curious Case of a Disappearing Manager” If you’ve felt “something is changing” — this one’s for you. 2026.geecon.org/speakers/info.…

🚀 Excited to welcome Mateusz Rzeszutek as a speaker! In his talk “Write safe native code for JVM with Rust”, he’ll show how to bridge #JVM and #Rust, compare #JNI vs the new #FFM API, and walk through real code examples with tests. If you’re into Java, performance, and modern native integrations - don’t miss it! 2026.geecon.org/speakers/info.…

Troubleshooting production is getting harder as AI speeds up delivery. But AI alone isn’t enough. Learn how Aviva Peisach (@WixEng) & Yasmin Dunsky (Wild Moose) turned tribal knowledge into AI-powered playbooks — cutting MTTR and reaching 80% accuracy. Join: Troubleshooting Production with AI @ Scale 2026.geecon.org/speakers/info.… 2026.geecon.org/speakers/info.… #geecon #DevOps #SoftwareEngineering #AI