Ossi Rönnberg
Senior Software Engineer at GameRefinery, a Liftoff Company
Kouvola, Kymenlaakso, Finland
Summary
👤
Senior🎓
Top SchoolOssi Rönnberg is a Senior Software Engineer with 14 years of experience specializing in JavaScript, TypeScript, Angular, React and a background in ActionScript. He has driven frontend development at GameRefinery through its acquisition by Liftoff, helping scale feature-level analytics for hundreds of thousands of mobile games. Prior roles include co-founding Finland’s Mikseri.net and building climate-smart forestry interfaces at Simosol, reflecting a blend of product-minded engineering and domain versatility. Ossi’s career spans startup founding, academic software work, and hands-on UI engineering, demonstrating comfort from greenfield projects to mature data products. Based in Kouvola, Finland, he pairs deep frontend craft with a practical understanding of game programming and long-term product stewardship. An early adopter of web technologies, he brings both curiosity and institutional knowledge from over a decade in interactive and data-rich applications.
14 years of coding experience
15 years of employment as a software developer
Game Programming, Game Programming at GameProSoftware Engineer, Software Engineer at Kymenlaakso University of Applied SciencesElectronics Assembler, Electronics Assembler at Kouvola Region Vocational College
Finnish, English, Swedish
Github Skills (122)
python10
cordova-android10
geojson10
chartjs-plugin10
feathers-ui10
chartjs10
turnip9
javascript9
mqtt9
home-automation9
phonegap9
automation9
computational-geometry9
home-assistant9
cordova-plugin9
Programming languages (9)
Github contributions (5)
focusnet/fi.simosol.focus.map
Jun 2016 - Jul 2016
Contributions:30 commits, 24 pushes, 1 comment in 1 month
Gamerefinery/chartjs-plugin-annotation
Apr 2017 - Sep 2018
Annotation plugin for Chart.js
Contributions:9 pushes in 1 year 5 months
annotationchartchart-js
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