Summary
Chang Oh is a Front-end engineer with nine years of experience building performant, large-scale web products and platform tooling from Seoul. He has led front-end platform efforts at Toss—authoring a 100+ module framework, automated UI logging, and an i18n migration of 15,000+ sentences—and now serves as a Staff Front-end Engineer at Coupang. His background spans consumer growth features (contributing to apps reaching 10M MAU), realtime video at massive scale (React Native + WebRTC), and founding a music recommendation startup, giving him both product intuition and systems-level craft. He focuses on monorepo and module systems to enable developer productivity while driving measurable performance and localization outcomes.
9 years of coding experience
8 years of employment as a software developer
Bachelor of Engineering - BE, Software, Bachelor of Engineering - BE, Software at Sogang University
Daejeon Science High School
Chemistry, Chemistry at Korea Advanced Institute of Science and Technology