Jaeyong Bae is a browser-focused software engineer and Chromium committer with eight years of experience building and hardening web engines and browser features. Based in Helsinki, he has driven improvements across Autofill, Passwords, Web Payments and Blink rendering—specializing in CSS pseudo-elements and contributing Web Platform Tests to ensure spec-compliant behavior. His background includes shipping Samsung Internet features like Biometric Web Login 2.0, modularizing browser code for easier rebases, and cross-platform browser work at Kakao to optimize rendering and builds. An active open-source collaborator, he combines low-level C++/Java engine work with front-end CSS debugging and test design, and has presented his experiences at community events like BlinkOn. He values team collaboration and listening, and brings a practical security mindset from time on mobile security teams and OAuth redesigns. Outside code, he’s a music and brand enthusiast who enjoys learning through hands-on contribution.
Test suites for Web platform specs — including WHATWG, W3C, and others
Role in this project:
Front-end Developer
Contributions:8 commits in 7 months
Contributions summary:Jaeyong primarily contributes to the CSS styling aspects of the web platform tests, focusing on the ::first-line and ::first-letter pseudo-elements. Their work includes fixing bugs related to how these pseudo-elements are applied, particularly in edge cases involving out-of-flow elements and empty spans. They also added new test cases to ensure proper behavior. The user has demonstrated a good understanding of CSS specifications, focusing on the correct application of styles.
Contributions:1 review, 45 pushes, 1 comment in 2 years 8 months
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