Sangwoo Ko
Project Consultant at 삼성 청년 SW 아카데미(SSAFY)
Gyeonggi, South Korea
Summary
🤩
Rockstar🎓
Top SchoolSangwoo Ko is a web browser engineer and project consultant with 11 years of experience building and shipping browser features for Chromium-based products. He has driven UX-focused front-end work at Brave and NAVER, implementing features like vertical tabs, playlist caching, split view, custom New Tab backgrounds, and a browser-native video conferencing feature (WhaleON). Sangwoo maintains an active open-source footprint with merged patches in Chromium and Brave core, demonstrating practical expertise in customizing Chromium UI components and debugging complex display issues. Based in Gyeonggi, South Korea, he now mentors and consults trainees at SSAFY, helping translate prototypes into production-ready projects and career growth. Known for coupling hands-on implementation with clear knowledge sharing—he also publishes code walkthroughs and demos on his YouTube channel—he brings both delivery focus and a knack for teaching less obvious browser internals.
11 years of coding experience
10 years of employment as a software developer
Bachelor of Arts in Economics, Regional Information studies, 3.67 / 4.30, Bachelor of Arts in Economics, Regional Information studies, 3.67 / 4.30 at 서울대학교 (Seoul National University)
English, Korean
Github Skills (12)
styles10
typescript10
user-interface10
typescripts10
react10
typescript-types10
javascript9
web-development9
css9
ux-design8
accessibility8
user-experience8
Programming languages (8)
Github contributions (5)
brave/brave-core
Mar 2022 - Jan 2023
Core engine for the Brave browser for mobile and desktop. For issues https://github.com/brave/brave-browser/issues
Role in this project:
Front-end Developer
Front-end DeveloperContributions:1910 reviews, 211 commits, 939 PRs in 10 months
Contributions summary:Sangwoo's commits primarily focus on enhancing the user interface and user experience within the Brave browser, particularly concerning the vertical tab strip and associated components. Contributions include modifications to the layout, style, and behavior of tab-related elements such as tab groups, headers, and menu buttons, as well as implementing features like reordering and displaying the playlist's thumbnail and controls. The user's work also demonstrates an ability to debug and resolve display issues by synchronizing frame button styles and applying code modifications to match the desired UI.
browserwindowsbrave-browserlinuxandroid
brave/playlist-component
Jul 2022 - Apr 2024
Contributions:21 reviews, 24 PRs, 54 pushes in 1 year 9 months
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