Jaeho J
Sr. Staff Frontend Engineer at MUSINSA 무신사
Seoul, South Korea
Summary
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Senior🎓
Top SchoolJaeho J is a seasoned Frontend Engineer with 10 years of experience designing and shipping user-facing products across major Korean tech companies, currently Sr. Staff Frontend Engineer at MUSINSA (29CM Engineering) in Seoul. He has deep expertise in React Native, Relay, ReScript and modern frontend stacks, with a history of shifting fluidly between front-end and back-end roles at Coupang, giving him strong full-stack context for scalable product work. Jaeho has led frontend initiatives for high-traffic e-commerce and CDN products, contributed to mobile and hybrid apps, and helped build SEO-focused web applications and admin tools. Comfortable moving between hands-on implementation and technical leadership, he brings pragmatic architecture choices informed by past roles as principal and staff engineer. An early physics graduate, he pairs analytical problem-solving with a practical engineering focus that favors maintainability and performance.
11 years of coding experience
17 years of employment as a software developer
Bachelor of Science Physics, Bachelor of Science Physics at Myongji University
English, Japanese, KoreanGithub contributions (5)
jacojang/jacojang.github.io
Jan 2016 - May 2020
Contributions:57 pushes, 1 branch in 4 years 4 months
jacojang/jjDicTrans
Aug 2015 - Apr 2016
Contributions:40 commits, 36 pushes, 1 branch in 7 months
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