Jonni Madekivi
Senior Software Developer at Reaktor
Finland
Summary
👤
Senior🎓
Top SchoolJonni Madekivi is a Senior Software Developer based in Finland with 13 years of hands-on experience building full-stack web applications, developer tools, and resilient server infrastructure. He blends practical DevOps and systems expertise—running geographically distributed mission-critical services with Xen, ZFS and automated monitoring—with UI-focused work creating custom Vaadin components and a SVG-based WYSIWYG print personalization platform. At Reaktor he continues shipping production software in agile teams while contributing upstream to the popular Vaadin framework, improving ComboBox APIs and core binding behavior. An entrepreneur at heart, he has a track record of solving complex migrations and integrations for customers and helped build a web questionnaire used by over 10,000 students in academic studies.
13 years of coding experience
16 years of employment as a software developer
Information technology, Information technology at University of TurkuKupittaan lukio
Finnish, English
Github Skills (9)
unit-testing10
application-framework10
javas10
web-framework10
webapp-framework10
web-application10
webapp10
java10
vaadin10
Programming languages (11)
Github contributions (5)
vaadin/framework
Dec 2012 - Dec 2018
Vaadin 6, 7, 8 is a Java framework for modern Java web applications.
Role in this project:
Full-stack Developer
Full-stack DeveloperContributions:16 commits, 7 PRs, 12 comments in 6 years 1 month
Contributions summary:Jonni primarily contributed to the Vaadin framework by fixing bugs, implementing new features, and improving existing functionality. Their work included modifying core components like `FieldGroup` to enhance binding behavior, address case-insensitive matching, and support inheritance. Additionally, the user added unit tests and implemented new APIs for the ComboBox component, showcasing involvement in both backend and frontend aspects of the framework.
web-applicationsjava-webvaadin-frameworkweb-application-frameworkjava
Wnt/vaadin-fiddle
Jan 2017 - Mar 2018
Online platform for developing Vaadin applications
Contributions:111 commits, 102 pushes, 4 branches in 1 year 1 month
developingonline-platformjavavaadinwebapp
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