Vaadin Create 2026
Speakers

Artur Signell works as CTO at Vaadin. He earlier lead the Vaadin products team and was responsible for all Vaadin products. Currently he is focusing on technology and research.

Jouni Koivuviita is the Principal Product Designer at Vaadin, focused on helping designers and developers create outstanding web apps. Jouni has a deep passion for web components, design systems, CSS, and web app UI design.

Leif keeps trying to improve how business web applications are being built through understanding why the current ways are difficult and then trying to come up with alternatives. Also product manager for Flow and Hilla.

Marc is a long-time Vaadineer, carrying a Product Strategist card in his left jeans pocket. Lately, he has mostly been thinking about the new #FFS and other ways to make the developers’ day more enjoyable.

Marcus has spent the past 20+ years combining modern web technologies and Java. More recently, he's been exploring how AI is changing the way we interact with computers. Marcus is always curious to learn new things and loves helping developers learn new things. Marcus is a Java Champion and currently works as the VP of Products at Vaadin.

Matti Tahvonen has worked on web apps for over two decades. The first-ever JS developer at Vaadin has turned into Java/JVM enthusiast over the years when working with a pure Open Source Java web framework and doing some business on top of it. When Matti is not working, time is mostly spent on nature-related hobbies and software to support those.

Petter (with two T’s) has been building with Vaadin for over 15 years. Most of that time was spent in the trenches—helping customers architect and implement business-critical applications. These days, he’s focused on documenting best practices and shaping the Vaadin Way: a strongly opinionated, full-stack approach to building modern Java web apps. When not wrangling code or content, Petter enjoys putting out fires—sometimes literally.

Rolf manages the research and development work around Vaadin’s components and theming features. Originally a developer-turned-designer, Rolf is passionate about improving developer-designer collaboration through design systems.

Sami is an original team member at Vaadin, dedicated to "empowering developers to build cool things." He is an experienced web application developer who has crafted web applications and reusable components for Vaadin and other frameworks. An open-source enthusiast and conference speaker, Sami is currently working on a software-hardware project for his sailing boat. Talk to him about innovative web technologies, hardware hacking, or sailing adventures.

Sebastian Kuehnau has been a Java enthusiast for two decades and fell in love with Vaadin during his time at university in Berlin. Since 2016, he has held various technical roles at Vaadin and currently serves as a Senior Developer Advocate and Solution Architect. He assists customers in building tailored web applications and is actively engaged in Java events and the Vaadin community.

Simon Martinelli is a Java Champion, Vaadin Champion, and Oracle ACE Pro, with over 30 years of experience as a software architect, developer, consultant, and trainer. He frequently shares his expertise by speaking at international conferences, writing articles, and maintaining his blog, Keep It Simple: https://martinelli.ch.

Steven is a builder and a coder who has been a technology leader for over 20 years. He deeply believes in the power of open source software to change the world and that commercial open-source software is the future of not only enterprise software development but software development as a whole.

Catherine Edelveis is a Developer Advocate at BellSoft and the co-host of CyberJAR, a YouTube channel dedicated to practical, state-of-the-art Java. She is focused on the JVM ecosystem and helps teams ship performant and secure cloud-native Java applications using modern OpenJDK capabilities and proven open-source tools. Passionate about sharing knowledge, she is a conference speaker, an active technical writer, and a host of regular livestreams with leaders from across the Java community.

Cesar Quinteiro has been building business software since the 1990s, always focused on maximizing productivity by defining what systems should do rather than hardcoding how they do it. After working with multiple technologies — from COBOL generators and REST-based backends to proprietary platforms — he began developing his own metadata-driven architecture over a decade ago, starting with Vaadin 7. Today, he designs scalable enterprise systems powered by Vaadin and Kubernetes.

Engineering Manager at Vaadin responsible for Vaadin Copilot, Vaadin IDE Plugins and start.vaadin.com. Previously developer in Vaadin Flow team. Performed Vaadin related JUG talks around Poland. In his free time he enjoys playing badminton and having fun with his children.