Jasper de Groot

Amsterdam, North Holland, Netherlands

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Summary

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Rockstar

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Top School

Jasper de Groot is a seasoned web developer and designer based in Amsterdam with 14 years of hands-on experience building responsive front-end interfaces. He has contributed to high-profile open-source projects like jQuery Mobile, improving documentation, demo UI elements, and mobile-focused themes—work that underscores both his attention to UX details and his ability to maintain developer-facing content. His background blends formal marketing education with deep practical skills in CSS, PHP, and front-end markup, enabling him to bridge design sensibility and technical implementation. Jasper’s contributions often target polish and usability—fixing broken links, refining examples, and updating versioned documentation—helping projects stay accessible and current. Comfortable working across demos, APIs, and theme code, he brings a pragmatic, user-centered approach to web projects. Colleagues can rely on him for thoughtful UI improvements that make both sites and docs clearer for end users and fellow developers.

14 years of coding experience

HEAO, Marketing, Economics & Law, HEAO, Marketing, Economics & Law at Hanzehogeschool Groningen

HEAO, Marketing, HEAO, Marketing at Hogeschool Inholland / Inholland University of Applied Sciences

HAVO, College/University Preparatory and Advanced High School/Secondary Diploma Program, HAVO, College/University Preparatory and Advanced High School/Secondary Diploma Program at Noordzee College (Ichthus College)

English, Dutch

Stackoverflow

Stats

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0reached

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Github Skills (12)

html10

css10

responsive-design10

javascript10

mobile-development10

front-end-development10

jquery10

jquery-mobile10

php8

ui-design7

wordpress7

ux-design5

Programming languages (4)

CSSJavaScriptPHPHTML

Github contributions (5)

jquery-archive/jquery-mobile

Jan 2012 - Sep 2016

jQuery Mobile Framework

Role in this project:

Front-end Developer

Contributions:2330 commits, 42 PRs, 56 pushes in 4 years 7 months

Contributions summary:Jasper contributed to the jQuery Mobile Framework by working on the documentation and UI elements of the demo pages. Their contributions included improving the form pages, title updates, and code block markup. They also addressed and fixed broken links in the demo documentation, demonstrating an understanding of the front-end structure and documentation of the project. They updated several example pages, with modifications to the style, markup and links, demonstrating proficiency in front-end development and documentation.

mobile-frameworkjqueryjquery-mobilejavascriptandroid

jquery/jquery-wp-content

Dec 2013 - Feb 2014

WordPress themes and plugins for the jQuery sites

Role in this project:

Front-end Developer

Contributions:10 commits, 2 comments in 2 months

Contributions summary:Jasper primarily focused on updating and improving the user interface and links within the jQuery Mobile project, targeting mobile devices. They added and modified menu links, adjusted footer elements, and made the homepage responsive. The contributions involved modifications to CSS and PHP files within the project, enhancing the mobile user experience. Further commits included updating the jQuery Mobile version links in the footer and the API documentation to reflect the latest versions.

jquerywordpresssiteswordpress-themesthemes

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