Leo Karlsson
System Developer at AB Trav och Galopp
Sweden
Summary
👤
Senior🎓
Top SchoolLeo Karlsson is a frontend-leaning fullstack system developer with eight years of experience building React-based interfaces, design systems, and developer tooling from Sweden. Currently at AB Trav och Galopp he contributes to a platform and design system team, focusing on micro-frontend architecture, FE API design, accessibility, DevEX, and automation via GitHub Actions. Comfortable across Next, Vue and Redux ecosystems, he blends practical UI work (Storybook, Material-UI, Emotion) with long-term project health and internal tooling strategy. Colleagues rely on him to bridge design system consistency and developer productivity, and he brings a rare background combining hands-on frontend craft with experience in operations and customer-facing technical roles.
8 years of coding experience
2 years of employment as a software developer
High School, Web development, A, High School, Web development, A at JENSEN EducationFront-end, Front-end at Nackademin
English, Swedish
Github Skills (37)
palette10
adobe-xd10
figma9
npm9
bundler9
nodejs9
react9
v8-javascript-engine8
jsx8
d3js8
bun8
typescript8
javascript8
executable8
isomorphic7
Programming languages (5)
Github contributions (5)
Leolainen/dotfiles
Oct 2019 - Feb 2025
Contributions:40 pushes, 3 branches in 5 years 4 months
Leolainen/figma-plugin-Material-palette
Dec 2019 - Jul 2022
Plugin for Figma app to quickly generate a Material palette
Contributions:203 commits, 12 PRs, 48 pushes in 2 years 7 months
figmapaletteadobe-xdmaterial-designfigma-app
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