JNation 🇵🇹 May 26 & 27 - 2026

The Sponsors Hall is where conversations happen.

Live demos. Technical exchanges. Direct contact with the Java community.

JNation returns to Coimbra on 26–27 May.

If you build for Java, this is the room.

#JNation #Java #Coimbra

Some of the best moments of the JNation 2025 conference in Coimbra, Portugal. JNation 2025 Highlights

If you were in Coimbra last May, you’ll remember it.

Two days of technical depth. Sharp questions. Packed rooms.

JNation returns to Convento São Francisco on 26–27 May.

A new edition is in the making!

Last year’s highlights below.

#JNation #Java #Coimbra

This is it. Final days for super cheap JNation 2026 tickets 💸
Speaker list coming soon 👀
Blind discount disappears on Friday, Feb 13.

Anything hands on, creative, unique or fun will do it ;)

🚨 CFP EXTENDED! 🚨
Good news! The Call for Proposals for JNAtion 2026 Conference has been extended by one more week.
📅 New deadline: Jan. 18
🎤 Submit your talk: sessionize.com/jnation-2026
Got a good story, lesson or workshop? We want to hear it!
#Portugal #Java, #JavaScript #AI #Cloud+ops #Security

🚨 CFP closes Jan. 10 — submit NOW!
Got a great talk, deep dive, or workshop about Java, JavaScript, AI, Cloud/ops and Security?
Want to speak at JNation 2026 in sunny 🌞 Coimbra, Portugal?
👉 Submit your proposal by next Saturday: sessionize.com/jnation-2026

JNation's CFP is Open!
You can apply to speak at JNation 2026 until Jan. 10.
Join us in Coimbra, Portugal on May 26 & 27 for the latest & greatest on #Java #JavaScript, #AI, #cloud and #security
sessionize.com/jnation-2026

Save the date! JNation 2026 will happen on May 26 & 27.
Join us in Coimbra, Portugal for the latest & greatest on #Java #JavaScript, #AI, #cloud and #security
jnation.pt

In this thoughtful conversation recorded at JNation 2025, Catarina I. Reis shares insights on the evolving relationship between large language models and sof... Interview with Catarina I. Reis - JNation 2025

Professor and software engineer Catarina I. Reis reflects on the challenges and opportunities LLMs bring to education, critical thinking, and team-based development.
youtu.be/fSi5U_OG60M
#JNation #AI #LLMs #Java #CatarinaReis #SoftwareEngineering

In this insightful interview recorded at JNation 2025, Ko Turk shares his journey as a developer at Code Lab, conference organiser, and advocate for sustaina... Interview with Ko Turk - JNation 2025

“We get a lot from spacecrafts — from solar panels to wireless headsets.”

From Java to NASA APIs, Ko Turk shares with Andres Almiray how software, data and sustainability come together.
youtu.be/iNjspnt-IQI
#JNation #Java #KoTurk #Sustainability #Observability #DevCommunity

In this engaging conversation at JNation 2025, Mikhail Korolev sits down with Andres Almiray to explore the shifting landscape of frontend tooling. As a Deve... Interview with Mikhail Korolev - JNation 2025

Mikhail Korolev joined Andres Almiray at #JNation to talk about the shift in frontend tooling — and how rewriting TypeScript in Go could change everything.

“The biggest bottleneck in any pipeline is now getting 10 times faster.”
Full interview: youtu.be/UBWvxiSFuAQ

#Java #TypeScript

In this insightful interview at JNation 2025, Lutske de Leeuw talks with Andres Almiray about how Java developers can run local LLMs in their applications us... Interview with Lutske De Leeuw - JNation 2025

“Java is here to stay — maybe forever, or at least our lifespan.” .
In her chat with Andres Almiray, Lutske de Leeuw shows how Java developers can make AI their own, with tools like LangChain4j and a strong community backbone.
#JNation #Java #AI #LLMs #LangChain4j

Edoardo Carlesi, bassist of Nanowar of Steel and machine learning engineer, joined JNation 2025 not just to perform, but also to talk about the unexpected ha... Interview with Edoardo Carlesi - JNation 2025

Edoardo Carlesi is not your typical speaker. He writes code by day and plays metal by night. In this interview with Andres Almiray, he shares how programming and performance can go hand in hand — and how dev-metal became a thing. youtu.be/UMbZW7_HnwI
#JNation #Java #DevMetal #AI #Python #Kotlin

In this insightful interview, Maya Shavin, a seasoned web developer from Israel, discusses how developers can bring accessibility into modern CI/CD workflows... Interview with Maya Shavin - JNation 2025

“We don’t like long pull requests – neither do AIs.”
Maya Shavin shares how developers can embed accessibility into CI/CD workflows—and how to harness AI to support inclusive design without compromising code quality.
www.youtube.com/watch?v=Jod_...
#JNation #Java #Accessibility #CI_CD #AI

Daniel Buzzini Thielsch moved from Germany to Portugal and brought with him a deep passion for AI—and Java. In this conversation with Andres Almiray at JNati... Interview with Daniel Buzzini Thielsch - JNation 2025

What does it mean for an LLM to think?
In this interview, Daniel Buzzini Thielsch tells Andres Almiray how our understanding of machine reasoning is shifting—from parroting patterns to exploring real logic—and why XML might make a surprising comeback.

#JNation #AI #LLM #Java youtu.be/mX9OyeltHA4

Nikhil Nanivadekar, Principal Engineer at Amazon and Java Champion, reflects on the creative potential of generative AI—and the engineering challenges behind... Interview with Nikhil Nanivadekar - JNation 2025

Multimedia meets GenAI. Python meets Kotlin. Declarative meets scalable.
Nikhil Nanivadekar tells Andres Almiray how engineering creativity and structured design power AI-based content creation—and why Java’s legacy still matters.
#JNation #Java #Amazon #JavaChampion

Matheus Albuquerque, Staff Engineer at Medallia, brings a refreshing perspective on web performance—one that intersects with psychology, economics, and acces... Interview with Matheus Albuquerque - JNation 2025

Web performance isn’t just about speed. It’s about people.
Matheus Albuquerque (Medallia) shares with Andres Almiray how bias, accessibility, and global disparities all shape user experience — and how developers can do better.
www.youtube.com/watch?v=nyu-...

#JNation #UX #Java

Annelore Egger, software engineer at OpenValley Switzerland, shares a personal and powerful story about how unit testing played a vital role in her journey t... Interview with Annelore Egger - JNation 2025

Unit testing isn't just a best practice—it can be a lifeline.
Annelore Egger (OpenValley) tells Andres Almiray how tests helped her understand software development and gave her the confidence to keep going.
#JNation #Java #UnitTesting #TDD #SoftwareEngineering #DevCommunity

In this inspiring conversation, Erik Pronk — manager at JDriven and first-time speaker at JNation — shares his thoughts on the human side of software enginee... Interview with Eric Pronk - JNation 2025

What does Michael Jordan have to do with software development?
In his chat with Andres Almiray, Erik Pronk (JDriven) shares why human-centric engineering matters—and how mental and physical well-being directly shape great code.
Watch here www.youtube.com/watch?v=9mQk... .

#JNation #Java #JavaScript

Alina Yurenko, Developer Advocate at Oracle, joins us to explore the growing potential of GraalVM — from building CLI tools and LLM inference engines to secu... Interview with Alina Yurenko – JNation 2025

GraalVM isn’t just for performance — it’s for flexibility. From secure enterprise apps to LLMs and CLI tools, Alina Yurenko (Oracle) explains how Native Image unlocks potential in her talk with Andres Almiray at JNation 2025.

Watch the full interview → youtu.be/mqSBSumNV1M

#JNation #Java #GraalVM

François Martin, Senior Full Stack Software Engineer at Karakun AG and active open-source contributor, joined us at JNation 2025 to discuss his experiences i... Interview with François Martin – JNation 2025

François Martin from Karakun AG joined us at #JNation 2025 to talk about his journey in software development, testing practices, and his open-source work in JavaFX.

Interview by Andres Almiray.
youtu.be/ULvXbVhcSsY

#JNation #Java #SoftwareEngineering #JVM #OpenSource #DeveloperCommunity

Simon Ritter, Deputy CTO at Azul Systems and Java Champion, joined us at JNation 2025 to discuss the evolution of Java, the intricacies of pattern matching a... Interview with Simon Ritter – JNation 2025

What makes pattern matching so powerful in Java?
In this JNation 2025 interview, Andres Almiray talks to Simon Ritter (Deputy CTO at Azul and Java Champion) about modern Java, semantic learning and the strength of developer communities.

Watch now → youtu.be/TvbW7ckyEtk

#JNation #Java #SimonRitter

Ben Evans, Java Champion, author, and Senior Principal Software Engineer at Red Hat, joined us at JNation 2025 to discuss the evolution of Java, the integrat... Interview with Ben Evans – JNation 2025

In a thoughtful and engaging conversation, Ben Evans discusses the evolution of Java, the strength of its community, and the values that keep the platform moving forward.

Interview by Andres Almiray. youtu.be/qLNjqdRXbKc

#JNation #Java #BenEvans #RedHat #Coimbra

Holly Cummins is a Senior Principal Software Engineer at Red Hat, Java Champion, and an internationally respected speaker. In this interview, she reflects on... Interview with Holly Cummins – JNation 2025

We caught up with Holly Cummins at JNation 2025 in Coimbra.

In this interview, Holly reflects on the power of creativity in software, the evolving role of cloud tech and what made this edition so special.

Watch now: www.youtube.com/watch?v=1m79... .

#JNation #Java #Coimbra #RedHat

JNation 2025 - All sessions Share your videos with friends, family, and the world

Recording from #JNation 2025 are already online!
Includes the #NanowarOfSteel performance, ‪@hollycummins.com‬ Keynote and many great #Java, #JavaScript and #AI sessions.
tinyurl.com/cskuyksw

Day 1 of JNation 2025 is a wrap.
Talks, code, side conversations — and a lot of ideas exchanged.
Thanks for showing up and staying sharp.
See you tomorrow. Cheers!
#JNation #Java #Coimbra

Kaya Weers is live at JNation 2025 with: “On an adventure into the depths of Maven”.
A talk for devs who want to understand their builds instead of just editing XML.
#JNation #Java #Coimbra #Maven #BuildTools

Alexander Chatzizacharias is live at JNation 2025 with: “Let’s use IntelliJ as a game engine, just because we can”.
An off-track session on what happens when developers experiment with the tools they use daily.
#JNation #Java #Coimbra #CreativeCoding

Vitor Alencar is live at JNation 2025 with: “Optimizing React Applications: Deep Dive into the React Compiler”.
A performance-focused session on how React sees your code — and how to help it do better.
#JNation #Java #Coimbra #React #WebPerformance #Frontend

Daniel Buzzini Thielsch is live at JNation 2025 with: “Teaching LLMs to Think on Their Feet”.
A session on dynamic compute, adaptability and how it’s changing the way we build AI systems.
#JNation #Java #Coimbra #LLMs #AI #Architecture