Thomas Rosefalk
Freelance Frontend Developer at Rosefalk ApS
Køge, Region Zealand, Denmark
Summary
👤
Senior🎓
Top SchoolThomas Rosefalk is a freelance frontend developer with over a decade of hands-on experience designing and shipping modern JavaScript applications, from startups to large public-sector projects. He specializes in TypeScript, Vue.js SPAs, build tooling (Webpack, Vite), Node.js, and web-based 3D (Three.js/A-Frame), and has a track record of shrinking app bundles dramatically and optimizing runtime performance. Comfortable bridging frontend, backend, and design teams, he mentors colleagues, introduces new technologies, and drives maintainable architecture and CI-friendly infrastructure. Past roles include senior frontend work at EnergiData and agency-level 3D/VR delivery for international clients, plus running his own development company and a creative retail venture. Based in Køge, Denmark, he combines pragmatic engineering with a craft-oriented mindset that surfaces in both code quality and user-focused solutions. An often-overlooked strength is his background in teaching and support roles, which makes him effective at onboarding and knowledge transfer across teams.
11 years of coding experience
14 years of employment as a software developer
kort videregående Multimediadesigner, kort videregående Multimediadesigner at KEA - Københavns ErhvervsakademiSTX Mathematics, STX Mathematics at Sankt Annæ Gymnasium
Danish, English, French
Github Skills (43)
phonegap9
playing9
fallback9
event-listener9
byte8
api8
audio8
flash8
event-emitter8
cordova8
text-to-image7
snipcart7
emitter6
inpainting6
devtools6
Programming languages (5)
Github contributions (5)
Rosefalk/object-tester
Oct 2019 - Feb 2023
ObjectTester will test if an object (with enumarables) has been updated since last time it was tested (string conversion and equality test). For example to avoid unneeded data transfer.
Contributions:6 PRs, 12 pushes, 8 branches in 3 years 4 months
stringtestingupdatedavoiddata-transfer
Rosefalk/lydia
Mar 2016 - Nov 2016
Contributions:13 commits, 26 pushes, 5 branches in 7 months
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