Stefan Kienzle
Frontend Developer at Württembergische Gemeinde Versicherung a.G.
Stuttgart, Baden-Württemberg, Germany
Summary
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RockstarStefan Kienzle is a seasoned Frontend Developer based in Stuttgart with 14 years of professional experience building user-facing web interfaces. He currently develops front-end solutions at Württembergische Gemeinde Versicherung, combining long-term enterprise experience with hands-on JavaScript and DOM expertise. An active open-source contributor, Stefan has improved the Fabric.js demo site—adding SVG export, stroke rendering, and richer object manipulation—and enhanced practical DevTools snippets for faster browser debugging. He brings a pragmatic focus on UX-driven bug fixes and demo customizations that surface library capabilities, and is known for turning developer tooling insights into tangible productivity improvements.
14 years of coding experience
English, German
Github Skills (13)
html10
css10
dom-manipulation10
fabric10
javascript10
browser-api10
fabricjs10
front-end-development10
ui-design9
graphical-user-interface9
developer-tools9
svg9
user-interface9
Programming languages (10)
Github contributions (5)
fabricjs/fabricjs.com
Feb 2013 - Nov 2013
http://fabricjs.com
Role in this project:
Front-end Developer
Front-end DeveloperContributions:14 commits in 9 months
Contributions summary:Stefan primarily focused on enhancing the fabricjs.com demo website. Their commits demonstrate bug fixes and customization of demos, with changes to the underlying HTML and JavaScript code to improve the user experience. They also implemented new features like SVG export tests and added stroke rendering capabilities, indicating a focus on improving the library's capabilities within the demo environment. Furthermore, the user updated the kitchensink demo, including new object manipulation controls and UI enhancements.
javascriptnodejsfabricjs
bgrins/devtools-snippets
Jun 2013 - Aug 2013
A collection of helpful snippets to use inside of browser devtools
Role in this project:Front-end Developer
Front-end DeveloperContributions:7 commits in 1 month
Contributions summary:Stefan focused on enhancing browser developer tools snippets, primarily working with JavaScript to manipulate and display data within the browser's developer console. Their contributions included modifying existing snippets to improve data presentation, such as directly outputting data URLs and formatting color representations. They also added new functionalities like preventing click events on hash links and referencing form elements for easy debugging. The user demonstrated a strong understanding of browser APIs and DOM manipulation techniques to create useful debugging tools.
browserdeveloper-toolschromesnippetshelpful
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