geecon

Java and JVM based technologies, dynamic languages, enterprise architectures, patterns, distributed computing, AI and more.

[geecon @GeeCON]

The photos from #geecon are now available!
Check out the photo gallery and relive some of the best moments:
https://t.co/Y45cSzzVQe
https://t.co/YoVKVbIHao

[geecon @GeeCON]

What happens when AI coding agents move faster than your test environments? 🤖⚡

At #geecon, Tom Akehurst will explore “The AI-driven future of test environments” — from unreliable pre-prod setups to AI-powered simulated environments that can finally keep up with modern development.

Creator of WireMock, Tom will show how simulation and AI can transform testing at enterprise scale.

https://t.co/eVV425WQeO

[geecon @GeeCON]

Proud to welcome @Revolut as a Sponsor of #geecon 2026! 🚀

From fintech innovation to engineering at scale, Revolut is redefining the way millions of people manage money worldwide.

Meet them in Kraków on 14–15 May!
https://t.co/Gfpq0mW6Kh

[geecon @GeeCON]

“Attackers don’t break crypto — they exploit assumptions.” 🔐

At #geecon, Marcin Łapaj will show how broken authorization, weak tenant boundaries, and compromised dependencies turn normal apps into breach machines.

Talk: “Authorization & Dependencies: the two ways apps betray us”
https://t.co/eYRegkQeAW

#OWASP #CyberSecurity #DevSecOps

[geecon @GeeCON]

Meet Dominik Cebula — Cloud Software Principal Engineer at @HSBC, Udemy instructor, and book author with 17+ years of experience building scalable cloud-native systems.

At #geecon 2026 he’ll present “Short-Term & Long-Term Memory in an AI Agent with Spring AI” covering:

• Spring AI Chat Client API
• STM & LTM memory
• MCP Servers & Tools
• Building modern AI Agents

https://t.co/I0kh3HAEaX

[geecon @GeeCON]

After so many years of organizing #geecon, we've honestly lost track of all the details.

Luckily, Peter Kofler didn't. Since 2009 he's been documenting the journey. A virtual #geecon museum, memories, swag, and a bit of nostalgia:

https://t.co/dIaPG6InRO

Thanks, Peter, and everyone who's been with us since the beginning.

[geecon @GeeCON]

We’re excited to welcome François Martin with his talk: “82 Bugs I Collected in a Year You Won’t Believe Made It to Production”

François shares real-world production bugs from everyday apps and websites, showing what went wrong, why it happened, and how to prevent similar issues in your own systems.

A practical, eye-opening talk full of lessons for anyone building or testing software.

https://t.co/Ws5sXgfUoT

[geecon @GeeCON]

Excited to welcome @jetbrains as a Silver Sponsor of #geecon 2026! 🚀

Creators of tools loved by developers worldwide, @jetbrains continues to shape the future of software engineering with innovation and developer-first products. https://t.co/Rwvco9coHY

[geecon @GeeCON]

What if AI stopped building TODO apps… and started playing Final Fantasy instead? 🎮🤖

At #geecon 2026, @ArturSkowronski will show how an LLM learns to play Final Fantasy I through a custom Kotlin NES emulator — exploring agents, memory dumps, hallucinations, latency, and why game worlds are the perfect playground for AI systems.

No buzzwords. No “vibe coding.” Just real experimentation with AI agents.

📅 14–15 May 2026, Kraków, Poland
https://t.co/PtBE7QFlHs

#AI #LLM #Kotlin #Java #AIagents

[geecon @GeeCON]

We’re beyond excited to welcome @HSBC as our Platinum Partner at #GeeCON 2026 💎🚀

HSBC is a global bank powered by technology – connecting customers around the world and helping keep them protected every day.

https://t.co/xfnCRdAlWA

[geecon @GeeCON]

What happens when AI agents get their own desktop environments? 👀

At #geecon, Tomas Rehak (@trehak1) will show how long-living VM environments, local user context, and powerful tooling unlock entirely new possibilities for agentic AI applications.

A practical lightning talk packed with real-world insights and code previews 🚀

📆 14–15 May 2026, Kraków
👉 https://t.co/v6Msf3JNBg

#AI #AgenticAI #Java #SoftwareEngineering

[geecon @GeeCON]

Meet Dariusz Jędrzejczyk (@chemicL) at #geecon 2026 🚀

Unifying AI integration with Model Context Protocol (MCP) — learn how to connect AI with real-world systems using a structured, scalable approach. From Spring AI MCP to building client & server components, this session is packed with practical insights and live coding.

📆 14–15 May 2026, Kraków
👉 https://t.co/Yye8NPdxMJ
#AI #Spring #Java #MCP #SoftwareEngineering

[geecon @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
👉 https://t.co/Yye8NPdxMJ

#AI #Java #JVM #Cloud #Architecture #Performance #PanelDiscussion

[geecon @GeeCON]

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: https://t.co/iHWHyjgA1e

[geecon @GeeCON]

🚀 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.
https://t.co/iWinsFB7rL
#Java #JDK25 #Performance #Profiling

[geecon @GeeCON]

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”

https://t.co/mZhbi9bUCQ

#SoftwareEngineering #CodeQuality #Teamwork

[geecon @GeeCON]

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.
https://t.co/LlilUdSotb

[geecon @GeeCON]

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! 🤝https://t.co/mTbswHIKjZ

[geecon @GeeCON]

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.

https://t.co/VNywx6JDtq