Luke Pommersheim
Staff Software Engineer at Wistia
Boston, Massachusetts, United States
Summary
👤
Senior🎓
Top SchoolLuke Pommersheim is a Staff Software Engineer in Boston with 11 years designing and shipping video-first web experiences, currently leading playback, performance, accessibility, and video SEO for Wistia's player and Channels. He combines deep front-end expertise (React, JS) with hands-on work on CDN and caching strategies and a pragmatic backend familiarity with Rails/Ruby. Luke has contributed to prominent open-source projects like hls.js, improving streaming robustness and text track handling—work that reflects a knack for debugging complex media pipelines. As a tech lead he balances product-facing UI improvements with low-level playback reliability, and he mentors teams to deliver performant, accessible video at scale. His background spans diverse roles from machine operation to international fieldwork, which gives him a practical, problem-solving mindset and a talent for translating messy real-world constraints into reliable software. Outside of work he’s unmistakably a web enthusiast (and a burrito fan), energized by learning after his morning coffee.
11 years of coding experience
8 years of employment as a software developer
Multimedia Design & Communication, Multimedia Design & Communication at Københavns erhvervsakademi (KEA) -Copenhagen School of Design & TechnologyUniversity of Massachusetts AmherstSociology, Sociology at University of CopenhagenHigh School Diploma, High School Diploma at St. John's Preperatory School - Danvers, Massachusetts.
English, Danish, Spanish, Icelandic
Github Skills (9)
html10
video-streaming10
mediasource10
javascript10
hlsl10
playback10
streaming10
ecmascript9
test-automation8
Programming languages (9)
Github contributions (5)
video-dev/hls.js
Dec 2021 - Jan 2023
HLS.js is a JavaScript library that plays HLS in browsers with support for MSE.
Role in this project:
Front-end Developer
Front-end DeveloperContributions:5 reviews, 6 commits, 6 PRs in 1 year 1 month
Contributions summary:Luke contributed primarily to the front-end aspect of the `hls.js` library, addressing issues related to video playback and streaming. They added a test stream with overlapping PES packets, which revealed and addressed a specific decoding issue in the library. Furthermore, the user modified the text track handling to properly determine the kind (captions or subtitles) based on characteristics found within the manifest, improving the user's experience. They also worked on logging and worker thread communication within the library, improving debugging capabilities.
hlsjshls-streamplaybackhtml5stream
lpommers/atom
Jun 2015 - Nov 2015
Contributions:6 PRs, 44 pushes, 6 branches in 4 months
linuxhackablemacostext-editoreditor
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