Sebastian Kelle
Senior Instructional Designer at University of Illinois Urbana-Champaign
Urbana, Illinois, United States
Summary
👤
Senior🎓
Top SchoolSebastian Kelle is a Senior Instructional Designer with a decade of experience designing world-class online learning in computer science and a PhD in Educational/Instructional Technology. Based in Urbana, Illinois, he blends academic research, industry pragmatism and hands-on software skills—contributing front-end fixes to the Able Player project to improve cross-browser fullscreen behavior. His career spans university roles, international research, consultancy, and product-focused knowledge management in industry, where he champions accessibility and learner-centered systems. Known for turning complex technical and pedagogical requirements into practical solutions, he also brings a creative personal touch as a musician and barbecue aficionado.
10 years of coding experience
9 years of employment as a software developer
Master's Degree, Computer Science, Master's Degree, Computer Science at Albert-Ludwigs-Universität Freiburg im BreisgauDoctor of Philosophy (Ph.D.), Educational/Instructional Technology, Doctor of Philosophy (Ph.D.), Educational/Instructional Technology at Open Universiteit Nederland
English, German, French, Spanish, Dutch
Github Skills (3)
html10
javascript10
jquery9
Programming languages (1)
Github contributions (3)
ableplayer/ableplayer
Oct 2015 - Jun 2017
fully accessible cross-browser HTML5 media player.
Role in this project:
Front-end Developer
Front-end DeveloperContributions:34 commits, 16 PRs, 8 pushes in 1 year 8 months
Contributions summary:Sebastian's commits focus on enhancing the user interface of the Able Player. The primary contribution involves adjusting the player's behavior to ensure correct fullscreen display across different browsers. The user's work specifically addresses cross-browser compatibility issues by adapting the player to account for variances in how each browser implements fullscreen mode. This indicates a focus on making the player function consistently across various web browsers.
cross-browseraudio-playerhtml5-audiobrowserhtml5-video
sebastiankelle/ableplayer
Oct 2015 - Jun 2017
Contributions:9 PRs, 30 pushes, 9 branches in 1 year 8 months
cross-browserbrowseraccessiblejavascriptmedia-player
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