Tseng-jen Tseng
Firefox Web Browser Developer at Mozilla
Taiwan
Summary
🤩
Rockstar🎓
Top SchoolTseng-jen Tseng is a seasoned web and IoT software engineer with 13 years’ experience, currently a Firefox Web Browser developer at Mozilla where he maintains Reader Mode and modernized its algorithm to improve compatibility across major media sites. He brings full-stack fluency from hardware firmware to frontend UI, having co-founded and led rapid IoT pilots (SensorWeb) that deployed air-quality sensors across Taiwanese schools and helped ship WoT.JS to bridge web apps with Arduino devices. His open-source footprint includes front-end work on high-profile Mozilla projects like readability and Gaia, with a focus on robust cross-site testing and UI fixes that improve real-world compatibility. Comfortable across mobile, embedded, and cloud stacks, he pairs product-minded engineering with hands-on implementation and a track record of shipping features that materially improve end-user experience.
13 years of coding experience
6 years of employment as a software developer
Master's degree, Management Information Systems and Services, Master's degree, Management Information Systems and Services at National Central UniversityBachelor's degree, Management Information System, Bachelor's degree, Management Information System at Chung Yuan Christian University
Github Skills (6)
html10
javascript10
user-interface10
testing10
css9
webscraping8
Programming languages (4)
Github contributions (5)
mozilla-b2g/gaia
Jan 2013 - Jan 2016
DEPRECATED - Gaia is a HTML5-based Phone UI for the Boot 2 Gecko Project. NOTE: For details of what branches are used for what releases, see
Role in this project:
Front-end Developer
Front-end DeveloperContributions:314 commits, 104 PRs, 46 pushes in 3 years
Contributions summary:Tseng-jen primarily contributed to the UI of the HTML5-based Phone UI for the Boot 2 Gecko Project by addressing bugs and improving the user interface. The contributions include changes to the CSS for the Music and Notifications apps and updates to Javascript code related to the Calendar, Contacts, and SMS apps. These changes primarily involved visual improvements and correcting behaviors, such as preventing unintended interactions and ensuring that the correct views are displayed.
abandoned
mozilla/readability
Oct 2016 - Mar 2017
A standalone version of the readability lib
Role in this project:Front-end Developer
Front-end DeveloperContributions:37 commits, 39 PRs, 13 pushes in 5 months
Contributions summary:Tseng-jen's commits primarily involve testing and the addition of test cases for various websites. These tests involve changes to expected HTML content, suggesting a focus on validating the output of the readability library. The commits target specific websites like wikipedia.org, yahoo.com, qq.com, msn.com, cnet.com, and others, indicating a responsibility for ensuring the library functions correctly across diverse web page structures and content.
ruststandalonereadability
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