Matti Tahvonen
Senior Vaadin Expert
Turku, Mainland Finland
Summary
🤩
Rockstar🎓
Top SchoolMatti Tahvonen is a Senior Vaadin Expert with 19 years of experience building web applications and championing open source from Turku, Finland. He has been at Vaadin since 2006, evolving from product developer and technical lead to product owner and developer advocate, blending deep hands-on engineering with product and community-facing roles. His contributions to flagship projects like vaadin/flow demonstrate full-stack expertise—from JVM server-side architecture and Spring integration to client-side component behavior and serialization fixes. Comfortable across languages and eras (Perl to modern JavaScript), he brings a pragmatic, backward-compatible approach to evolving web UI frameworks. Beyond code, he’s created integration examples, written technical content, and presented at conferences, helping bridge developer needs and product direction. A detail-oriented maintainer, he often focuses on maintainability and compatibility improvements that keep large open-source platforms usable for enterprise teams.
19 years of coding experience
12 years of employment as a software developer
Master of Science - MS, Computer Software Engineering, Master of Science - MS, Computer Software Engineering at Turun yliopisto - University of Turku
Stackoverflow
1,924reputation
79kreached
82answers
0questions
Github Skills (20)
debug10
vaadin10
java10
javas10
spring-boot10
web-application9
webapp-framework9
application-framework9
front-end-development9
webapp9
refactoring9
web-framework9
maven6
vaadin-flow6
geolocation6
Programming languages (14)
Github contributions (5)
vaadin/framework
Nov 2006 - Feb 2019
Vaadin 6, 7, 8 is a Java framework for modern Java web applications.
Role in this project:
Back-end Developer
Back-end DeveloperContributions:2144 commits, 28 PRs, 6 pushes in 12 years 5 months
Contributions summary:Matti made several commits focused on removing obsolete methods and adding null checks within the Vaadin framework. The commits modified multiple Java source files, particularly within the `com.vaadin.terminal` and `com.vaadin.ui` packages, indicating work on core framework functionality. These changes suggest the user was contributing to maintainability and bug fixes within the backend code base.
web-applicationsjava-webvaadin-frameworkweb-application-frameworkjava
vaadin/flow
Nov 2016 - Jan 2023
Vaadin Flow is a Java framework binding Vaadin web components to Java. This is part of Vaadin 10+.
Role in this project:Full-stack Developer
Full-stack DeveloperContributions:95 reviews, 46 commits, 57 PRs in 6 years 3 months
Contributions summary:Matti primarily contributed to the Vaadin Flow framework, focusing on both server-side Java code and client-side (frontend) aspects. Their work included bug fixes related to serialization and component behavior, implementation of new features such as the flexible use of the `@Route` annotation, and improvements to the framework's internal workings. The user also worked on Spring integration with Vaadin, adding Spring Data helpers and addressing Spring Boot compatibility issues. Additionally, they made contributions to the flow-server and flow-html-components modules, indicating a broad understanding of the framework's architecture.
web-componentsweb-application-frameworkvaadin-flowjavavaadin
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