Harm Hermsen
Founder, Manager & Developer at H-square
Utrecht, Netherlands
Summary
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SeniorHarm Hermsen is a founder, manager, and hands-on developer with 13 years of experience building custom web applications, CMS integrations, and process automations from Utrecht, Netherlands. As founder of Time-Team he combines product leadership with technical delivery, designing user interfaces, regatta timing/tracking hardware, and coordinating teams and event stakeholders. He also brings long-term software engineering experience from H-square, spanning backend systems and practical integrations that streamline operations. Harm’s work sits at the intersection of web development and embedded timing systems, showing a knack for translating real-world event needs into reliable digital and hardware solutions. Colleagues describe him as entrepreneurial and detail-oriented, able to manage both people and low-level engineering challenges. His profile reflects a pragmatic maker who prefers shipping usable systems over theoretical perfection.
13 years of coding experience
Dutch, English
Github Skills (39)
javascript10
browser-extension10
browser10
firefox-addon10
laravel10
chrome-extension10
toggl10
php10
firefox10
chrome10
civicrm9
elearning9
backbonejs9
laravel-framework9
ads8
Programming languages (5)
Github contributions (5)
haalteam/LTI-Tool-Provider-Library-PHP
Oct 2020 - Sep 2023
Contributions:2 PRs, 2 pushes in 2 years 10 months
hhermsen/toggl-button
Jan 2015 - Nov 2016
Contributions:4 pushes, 2 branches in 1 year 10 months
chrome-extensionbuttontogglchrome
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