Dennis Schubert
Web Superglue Engineer at Mozilla
Stuttgart, Baden-Württemberg, Germany
Summary
🤩
Rockstar🎓
Top SchoolSky Schubert is a Web Superglue Engineer with 15 years of experience focused on web compatibility, privacy-first sharing, and federated systems, based in Stuttgart. At Mozilla since 2011 and formally on the Firefox team since 2016, Sky diagnoses tricky cross-browser edge cases and implements pragmatic fixes—often shipping WebCompat features and the "Report Site Issue" tooling in Firefox for Android. They blend front-end and Android work with backend integrations, collaborating across vendors and sites to keep the web usable without sacrificing moderation or policy goals. An active open-source contributor, Sky’s commits directly improve Firefox’s real-world compatibility and developer diagnostics. Outside the obvious browser work, they prioritize interoperable solutions for both humans and machines, emphasizing practical privacy and moderation-aware designs.
15 years of coding experience
5 years of employment as a software developer
FiAE, Software engineering, electrical engineering, FiAE, Software engineering, electrical engineering at Ferdinand-von-Steinbeis-Schule ReutlingenLudwig-Uhland-Realschule
German, English
Stackoverflow
670reputation
18kreached
8answers
3questions
jekyll
top-5%
Github Skills (27)
kotlin10
webbrowser10
compatible10
javascript10
mobile-development10
css10
browser10
android-development10
java10
browser-support10
javas10
firefox10
android10
html10
web-development10
Programming languages (27)
Github contributions (5)
mozilla-mobile/firefox-android
Sep 2019 - Jan 2023
:warning: This repository hosts the Firefox for Android (Fenix), Focus for Android, and Mozilla Android Components projects. It is now developed and maintained as part of Mozilla Central. See the announcement here: https://github.com/mozilla-mobile/firefox-android/wiki#upcoming-migration-to-mozilla-central. ”
Role in this project:
Full-stack Developer
Full-stack DeveloperContributions:4 reviews, 30 commits, 5 PRs in 3 years 4 months
Contributions summary:Dennis's commits primarily involve adding and modifying WebCompat features within the Firefox for Android project. These features include implementing user agent overrides to improve website compatibility, and integrating the "Report Site Issue" feature. The user has also imported and updated various WebCompat interventions. The changes indicate a focus on front-end and back-end integration within the context of a mobile browser.
firefoxhostsandroidandroid-componentsfirefox-for-android
mozilla-mobile/android-components
Sep 2019 - Oct 2022
⚠️ This project moved to a new repository. It is now developed and maintained at: https://github.com/mozilla-mobile/firefox-android
Role in this project:Full-stack Developer
Full-stack DeveloperContributions:9 reviews, 29 commits, 16 PRs in 3 years 1 month
Contributions summary:Dennis contributed extensively to the `mozilla-mobile/android-components` repository, primarily focusing on enhancing the WebCompat feature, including adding new UA overrides to address website compatibility issues on Android. They implemented code changes to add the WebCompat feature to sample browsers. They also integrated the "Report Site Issue" feature, bringing in experimental APIs, allowing the gathering of more information such as console errors and other possible indications for what went wrong. Moreover, they updated the WebCompat interventions, and fixed site issues related to CSS and JavaScript, demonstrating skills in web development and debugging across multiple sites.
firefoxbrowserfirebasefirefox-androidandroid
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