Mattias Ahlsén
Backend Engineer at H&M
Greater Stockholm Metropolitan Area Sweden
Summary
👤
Senior🎓
Top SchoolMattias Ahlsén is a backend engineer with 10 years of experience building scalable full‑stack systems using TypeScript, Node.js and modern front-end frameworks. He has moved between consultancy and product roles—most recently at H&M after stints at Exopen, Viaplay and Netlight—bringing practical system-architecture sensibilities to both feature delivery and platform design. Passionate about algorithms, data structures and system-wide solutions, he pairs pragmatic engineering with a steady drive for personal growth and better team environments. His portfolio and recent side project BadWriter.io show a habit of shipping independent projects that explore UX and tooling beyond day‑job work. Based in the Greater Stockholm area, he combines academic grounding from Uppsala with hands-on experience across web, CI tooling and full‑stack consulting.
11 years of coding experience
4 years of employment as a software developer
Master of Science - MS IT, Master of Science - MS IT at Uppsala University
Github Skills (33)
testing10
facebook10
javascript9
e-mail9
mongoose-plugin9
phaser8
spotify8
sublime-text-plugin8
google-map8
sublime-text8
rendering8
webgl7
2d-game7
editorconfig7
html6
Programming languages (6)
Github contributions (5)
mattiasahlsen/comments
Nov 2018 - Dec 2022
Implement comments for any url (for example youtube videos where comments are disabled).
Contributions:30 pushes, 1 comment, 21 issues in 4 years 1 month
youtube
mattiasahlsen/spotify-queue
Dec 2019 - Feb 2021
Easy-to-use shared queues for Spotify. Everybody with the link can add songs. Only the host of the queue needs a Spotify account.
Contributions:34 commits, 3 PRs, 23 pushes in 1 year 2 months
spotify
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