Espen Antonsen
Founder at MakePlans
Oslo, Norway
Summary
🤩
Rockstar🎓
Top SchoolEspen Antonsen is a founder and seasoned web application developer with 17 years of experience building SaaS products and enterprise web systems for SMBs. He co-founded 24SevenOffice and led development of its CRM/ERP from a three-person startup to a publicly listed company, then bootstrapped MakePlans—a stable, API-first appointment booking platform serving salons, clinics and class-based businesses. Hands-on across the stack, he blends product thinking, backend/database expertise and customer-facing roles like sales and onboarding, which helps him iterate features that real users love. MakePlans’ emphasis on a rich API and partner-driven growth reflects his belief in integrations as a scalable channel. Based in Oslo with a BBA in Marketing, he’s pragmatic about fundraising but open to investors, partners and timezone-diverse hires to accelerate growth. An understated strength is his track record of turning small teams and tight resources into durable, revenue-generating products.
17 years of coding experience
7 years of employment as a software developer
Bachelor of Business Administration (B.B.A.) Marketing, Bachelor of Business Administration (B.B.A.) Marketing at QUT (Queensland University of Technology)
Norwegian, English
Stackoverflow
2,157reputation
210kreached
28answers
9questions
Github Skills (200)
plausible-analytics10
photo10
autocomplete10
drag10
paypal10
api10
photo-gallery10
html10
react-dnd10
tagging10
css10
selectize10
event-calendar10
keyboard-navigation10
padrino10
Programming languages (17)
Github contributions (5)
makeplans/makeplans-api
Dec 2012 - Nov 2022
API documentation for MakePlans
Contributions:278 commits, 1 PR, 150 pushes in 10 years
event-systemapibookingsystemapi-documentationsms-reminders
espen/balder
May 2009 - Feb 2020
Balder - Open source Ruby on Rails photo gallery
Contributions:328 commits, 1 PR, 7 pushes in 10 years 11 months
ruby-on-railsphoto-galleryrailsrubybalder
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