Hans Hillen
Director Of Knowledge Center at TPGi
Auckland, Auckland, New Zealand
Summary
👤
Senior🎓
Top SchoolHans Hillen is a Director of Knowledge Center and seasoned web accessibility specialist with 17+ years of experience designing, testing, and teaching inclusive digital experiences. Based in Auckland, he leads content and knowledge operations at TPGi while continuing hands-on accessibility consultancy, audits, and remediation work spanning WCAG, ADA, and Section 508. Hans combines an MA in Social Science Informatics with deep front-end expertise, contributing accessibility improvements to high-profile open-source projects like Firebug and jQuery UI to enhance keyboard navigation and screen-reader compatibility. He is known for embedding accessibility early in design and development, turning complex compliance requirements into practical, reusable guidance and training.
17 years of coding experience
Fons Vitae LyceumFons VitaeMontessori Lyceum AmsterdamMA, Social Science Informatics, Human Computer Studies, MA, Social Science Informatics, Human Computer Studies at University of Amsterdam
Stackoverflow
11reputation
883reached
2answers
0questions
Github Skills (21)
accessibility10
javascript10
acc10
jquery10
wai-aria10
accessibilityservice10
css10
ria10
ui-design10
uid10
front-end-development10
acessibility10
keyboard-navigation10
html9
user-experience8
Programming languages (9)
Github contributions (5)
firebug/firebug
Jan 2009 - Dec 2011
Web Development Evolved - The Firebug you have known and loved
Role in this project:
Front-end Developer / Accessibility Specialist
Front-end Developer / Accessibility SpecialistContributions:95 commits in 2 years 10 months
Contributions summary:Hans made several contributions focused on enhancing the accessibility and usability of the Firebug web development tool. Their work involved implementing keyboard shortcuts for tab navigation, making toolbars and menu items keyboard-accessible, and ensuring that the user interface correctly exposes role and state information to assistive technologies. Furthermore, the user addressed issues with inline editors, HTML panel tree navigation, and the net panel to improve the user experience for users of screen readers.
web-developmentfirefoxgecko
jquery/jquery-ui
Apr 2011 - Mar 2012
The official jQuery user interface library.
Role in this project:Front-end Developer
Front-end DeveloperContributions:18 commits in 11 months
Contributions summary:Hans primarily focused on improving the user interface and accessibility of the jQuery UI menu and menubar components. Their contributions included significant modifications to ARIA attributes and focus management, ensuring proper keyboard navigation and screen reader compatibility. The user also addressed several bug fixes, refined the styling and structure of the menu and menubar components, and made improvements to the overall user experience. They updated tests to use UL elements.
user-interfacejavascriptjquery
Find and Hire Top DevelopersWe’ve analyzed the programming source code of over 60 million software developers on GitHub and scored them by 50,000 skills. Sign-up on Prog,AI to search for software developers.