Roni Helppi
Senior UX Designer at Reaktor
Tampere, Pirkanmaa, Finland
Summary
👤
Senior🎓
Top SchoolRoni Helppi is a Senior UX Designer based in Tampere with 11 years of experience blending user-centered design and hands-on software development to create elegant, implementable digital products. He has progressed from Haskell-based software engineering and field testing to leading UX work at Reaktor after several roles at Gofore and Leadin, giving him a rare fluency in both prototyping and production-ready implementation. Roni’s background in computer science (M.Sc.) and past work on industrial and healthcare-adjacent systems informs a pragmatic approach to research, information architecture, and interaction design. Colleagues benefit from his ability to translate complex technical constraints into joyful, swift-to-build interfaces. He’s known for pairing deep technical empathy with strong customer interaction—making designs that delight users and ship quickly.
11 years of coding experience
3 years of employment as a software developer
Master of Science (M.Sc.), User Experience, Computer Science, Master of Science (M.Sc.), User Experience, Computer Science at Tampere University of TechnologyHigh school, High school at Arkadian yhteislyseo
Finnish, English, Swedish, Estonian
Github Skills (20)
css10
sass10
react10
addon10
home-assistant8
sketch7
ui-theme7
pebble6
finnish5
vscode-extension4
solidity2
grammarly2
ethereum2
grammar2
vscode2
Programming languages (5)
Github contributions (5)
ronijaakkola/foundryvtt-lights-out-theme-shadowdark
Sep 2024 - Oct 2025
A polished UI theme for the Shadowdark system in FoundryVTT.
Contributions:21 releases, 17 PRs, 129 pushes in 1 year 1 month
ui-themefoundry-vttroleplayingaddon
ronijaakkola/unity-scene-loader
Oct 2022 - Sep 2024
Contributions:1 release, 3 pushes, 1 branch in 1 year 11 months
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