Sjoerd Maessen
Owner at The Rational Investor
Etten-Leur, North Brabant, Netherlands
Summary
👤
Senior🎓
Top SchoolSjoerd Maessen is a pragmatic software engineer and entrepreneur with over 16 years of professional development experience and more than a decade running his own ventures. He combines hands-on engineering and architecture—shaping in-house CMS platforms and BI solutions—with leadership roles as CTO and owner across small agencies and product-focused companies. Comfortable moving between full-stack development, data and business intelligence, and freelance delivery, he’s delivered both long-term product stewardship and client-facing projects. Based in Etten-Leur, Netherlands, he brings a practical blend of technical depth and commercial sense rooted in a formal web development background and years of managing development teams and operations. An understated strength is his ability to translate marketing and business requirements into scalable technical solutions, honed while leading development for agencies and startups.
10 years of coding experience
11 years of employment as a software developer
Commerce, Commerce at Stella Matutina InstituutBachelor, Webdevelopment, Bachelor, Webdevelopment at Karel de Grote-HogeschoolSt. AntoniusschoolWebdevelopment, Webdevelopment at SISA
English, Dutch, French
Github Skills (67)
chat10
collaboration10
javascript10
slack10
meteor10
webrtc10
communications10
data-protection9
api9
exchange9
trading9
backend9
cryptocurrency9
bitcoin9
crypto8
Programming languages (8)
Github contributions (5)
e-sites/php-mysql-mysqli-wrapper
Jun 2015 - Sep 2020
Contributions:11 commits, 9 PRs, 9 pushes in 5 years 4 months
sjoerdmaessen/machinelearning
May 2016 - May 2016
Contributions:1 commit, 13 pushes, 1 branch in 1 day
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