Frederik Lassen
Lead Software Engineer at CoCoach
Copenhagen, Capital Region of Denmark
Summary
👤
Senior🎓
Top SchoolFrederik Lassen is a lead software engineer with 14 years of hands-on experience building scalable web and cloud-native products from the ground up, currently shaping CoCoach’s architecture and delivery. He combines deep domain curiosity—especially in live streaming and fitness planning—with a pragmatic focus on simplicity, maintainability and timely delivery. Comfortable across full-stack stacks (Rails, React/React Native, Node, TypeScript) and databases (Postgres, Redis, Elastic), he has driven both product engineering and infrastructure work including serverless event processing on AWS. A former founder and early hire across multiple startups, he pairs technical leadership and mentoring with hiring and onboarding to scale teams effectively. Based in Copenhagen, Frederik is known for diving into domains to ensure solutions truly solve the problem rather than just ship features.
14 years of coding experience
6 years of employment as a software developer
Primary School, Primary School at Grøndalsvængets SkoleBachelor’s Degree Computer Science, Bachelor’s Degree Computer Science at Københavns Universitet - University of CopenhagenHigh School - Communication/IT, High School - Communication/IT at HTX Sukkertoppen
Danish, English, German, Italian
Github Skills (52)
jquery10
jquery-mobile10
testing9
react-native9
javascript9
webpack9
vue9
android9
react9
angular9
html8
documentation8
web-components8
vite8
typescript8
Programming languages (4)
Github contributions (5)
fredefl/LocalChat
Jul 2012 - Mar 2013
Contributions:9 commits in 8 months
fredefl/Computer-Info
Jan 2012 - Jun 2013
Contributions:146 commits in 1 year 4 months
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