Vaadin Create 2026 — The Full-Stack Java Conference in Barcelona

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Two days in Barcelona on the future of full-stack Java

27-28 October 2026 · Barcelona, Spain

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Code smarter. Build faster. Ship better apps.

AI agents are rewriting how we build software. Legacy systems still need to reach the web. And full-stack teams are under more pressure than ever to ship secure, accessible apps — fast. Vaadin Create is two days of practical, engineer-to-engineer talks on exactly that.

You’ll hear voices from across the Java ecosystem — Jakarta EE, Spring Boot, Kotlin, and Vaadin — on AI-assisted development, cloud-native delivery, security, and modernizing the apps your business runs on. No marketing fluff: real architectures, real trade-offs, real code.

Hosted by Vaadin. Open to every Java developer.

Who should attend?

If you build software on the JVM, this is for you. Vaadin Create is designed for Java and Kotlin developers, full-stack engineers, and architects who care about how modern web apps get built — whether your stack is Spring Boot, Jakarta EE, Vaadin, or all three.

Come for the talks on AI-assisted development, modernization, security, and cloud-native delivery. Leave with patterns and tools you can use the moment you’re back at your IDE. No prior Vaadin experience required.

Where it all happens?

Join us in Barcelona on 27–28 October 2026 — three tracks, two days, and a room full of engineers and architects from across the Java community, alongside the people who build Vaadin and contributors from the wider ecosystem, including the Eclipse Foundation and BellSoft.

Between sessions there’s a Community Corner to show what you’ve built, hands-on office hours, and an after-hours where the best conversations usually happen. Learn, code, collaborate — and leave with skills you can use on Monday.

Four themes, one stack: Java

Vaadin Create spans the topics shaping Java development right now, across three parallel tracks. Pick a lane or move between them — every session is hands-on and built for working engineers.

AI-assisted development

What actually changes when agents write the code? Petter Holmström on craft and judgment in the age of AI agents, Simon Martinelli on spec-driven development, plus sessions on AI-driven UIs, RAG, and putting AI agents to work.

Modernization & migration

Get legacy Java onto the web without a rewrite. Real journeys from JSP and Vaadin 8 to a modern stack, a metadata-driven ERP running in production, and a practical playbook for systems that have to last a decade.

Cloud-native & the wider JVM

Ship Java that's fast, secure, and lean. Catherine Edelveis (BellSoft) on the perfect container image for a Spring Boot app, Ivar Grimstad (Eclipse Foundation) on Jakarta EE, plus load testing with k6 and a deep dive on security.

Full-stack & UI

Build the whole app in one language. Kotlin on the JVM with no JavaScript, the future of full-stack development, accessibility by default, type-safe i18n, and a live Figma-to-UI lab.

Featured Speakers

Steven Grandchamp

CEO, Vaadin

Simon Martinelli

Programming Architect, Martinelli LLC

Catherine Edelveis

DevRel, BellSoft

César Quinteiro Rendo

CTO, Intergal S.Coop.G.

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Featured talks

The end of artisan development? Building Software in the Age of AI Agents

In the late 1990s, I was a teenager building data-driven UIs on top of Paradox databases with Delphi. The UI was driven by the database schema. It was ugly. It worked. I was hooked.
I spent the next two decades learning that how you build software matters — not just whether it works. I came to see code as craft. Vaadin then asked me to codify that craft into The Vaadin Way. It was grounded in ten years of real-world screw-ups — and it didn’t go as planned. The craft resisted codification. I was already rethinking the whole approach when AI agents showed up and made the question urgent for everyone.
Today, I have colleagues running unchecked AI-generated code in production. It works. I also have a personal project where an agent writes every line — and I’ve never been more excited about building software. Both are true at the same time, and I don’t think we’re talking enough about what that means.
This is not a talk about how to use AI agents with Vaadin. This is about what happens to craft, experience, and judgment when the machine gets good enough.

Petter Holmström

Principal Software Engineer, Vaadin

Community

Spec-Driven Development - Why Vaadin Is the Perfect Fit

AI makes coding faster, but speed does not solve the real problem: specifications and implementation drifting apart. This session shows a practical spec-driven approach based on the AI Unified Process, where structured requirements and system use cases drive the application, and AI generates and evolves code from them incrementally. You will see why Vaadin is particularly well suited for AI-driven development. Its server-side model, type safety, and unified Java stack give AI agents a consistent and predictable environment to generate UI and backend together, without the complexity of fragmented frontend stacks. This improves traceability, stability, and maintainability. Using real examples, the talk demonstrates how specifications drive UI creation, how guardrails keep architecture consistent, and how Vaadin enables efficient AI-assisted development of real enterprise applications.

Simon Martinelli

Programming Architect, Martinelli LLC

Community

Creating a perfect container image for Java application

In this session, we'll treat container images like a product with clear requirements. Using a full-stack Spring Boot app with the Vaadin-based frontend, we will explore build and packaging approaches and their real-world implications in terms of startup speed, memory footprint, security posture, and scaling convenience. In the end, you'll get a practical playbook for designing Java images based on your goals, including a decision framework and a reusable checklist.

Catherine Edelveis

DevRel, BellSoft

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Full 2-day conference - all sessions & workshops

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Highlights from previous year

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Frequently asked questions

We're here to assist you! Feel free to reach out to us with any questions or inquiries at events@vaadin.com

What is Vaadin Create?

Vaadin Create is a 2-day global conference for anyone using, evaluating, or exploring Vaadin solutions.

Who should attend?

Java and Kotlin developers, full-stack engineers, tech leads, and architects — whether you work in Spring Boot, Jakarta EE, Vaadin, or a mix. If you build web applications on the JVM and want to see where the craft is heading, you’ll feel at home.

When and where will Vaadin Create take place?

Vaadin Create will be held on 27-28 October in Barcelona, Spain, at the Hotel Catalonia Barcelona Plaza (MWC Hotel), Pl. d'Espanya, 8, Sants-Montjuïc, 08014 Barcelona, Spain.

How can I book a room at the hotel for the event?

We have secured a special rate of 240€ per night. To book, please download the registration form, fill it out, and email it directly to plaza.reservas@cataloniahotels.com. The hotel will then send you a secure payment link valid for 24 hours to complete your payment and confirm the reservation.

What is the cost to attend?

The Standard ticket price is €999. However, if you register before March 31, 2026, you can secure an Early Bird rate of €799. (All prices exclude 21% Spanish VAT).

How can I register for Vaadin Create?

How can I register for Vaadin Create? To register for Vaadin Create, click the Get your ticket button. This will redirect you to our page on the Eventbrite platform, where you can pay online for your tickets. If you have a discount code, you can apply it there.

What if I need an invoice?

Please contact us at events@vaadin.com

Do I need to know Vaadin to attend?

No. Many sessions cover topics relevant to any Java team — AI-assisted development, modernization, containers, security and fullstack architecture. Vaadin-specific talks are clearly marked, and you’ll take plenty home regardless of your stack.

Vaadin Create 2026 - people at a conference

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