Joonas Karttunen
Software Developer at Wunderdog
Espoo, Finland
Summary
👤
Senior🎓
Top SchoolJoonas Karttunen is a pragmatic full-stack software developer with 9 years’ experience, evolving from a React specialist into a Node.js-backed full-stack engineer. Based in Espoo, Finland, he has delivered end-to-end projects—from value calculators and product configurators to CMS and pixel streaming—often owning both frontend and backend and leading integrations for major clients. At Movya he championed modern tooling like TypeScript and Next.js, and now continues to ship high-quality software at Wunderdog. Known for attention to detail and a drive for maintainable solutions, he blends frontend polish with solid backend architecture.
9 years of coding experience
3 years of employment as a software developer
Hiroshima UniversityBachelor's degree, Information Technology, Bachelor's degree, Information Technology at University of Jyväskylä
Finnish, English, Japanese
Github Skills (4)
authentication4
single-page4
angular3
sdk3
Programming languages (6)
Github contributions (5)
Coffettaja/MuseoAR
Feb 2019 - Jun 2019
Contributions:125 commits, 17 PRs, 50 pushes in 4 months
Coffettaja/web-practice
May 2017 - Oct 2018
Web application development practice
Contributions:44 pushes, 8 branches in 1 year 5 months
javascriptdevelopment-practiceweb-applicationnodejsapplication-development
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