Hyeon-seok Jang
Frontend Engineer at Toss Income(토스인컴)
South Korea
Summary
🤩
Rockstar🎓
Top SchoolHyeon-seok Jang is a Frontend Engineer with nine years of experience building and modernizing user-facing applications across startups and large Korean tech firms. He has led B2C front-end efforts at 캐치테이블, improved legacy apps and built new teams and onboarding practices, and now contributes to Toss Income’s frontend stack. His background includes platform work at Woowa Bros. expanding robot delivery management systems and creating frontend curricula, plus migrating desktop apps to Electron at Movill, demonstrating both product-focused engineering and developer tooling experience. An active open-source contributor, he helped translate and adapt the TypeScript Handbook into Korean, improving accessibility for Korean developers. Known for mentoring juniors and shaping development processes, he combines hands-on implementation with team building and documentation-driven collaboration.
9 years of coding experience
8 years of employment as a software developer
인터넷정보, 인터넷정보 at 군포정보산업고등학교학사 컴퓨터소프트웨어, 학사 컴퓨터소프트웨어 at 세종사이버대학교
Github Skills (7)
html10
typescript10
typescripts10
typescript-types10
documentation10
k9
translation9
Programming languages (10)
Github contributions (5)
typescript-kr/typescript-kr.github.io
Feb 2018 - Jun 2019
🇰🇷 TypeScript Handbook in Korean
Role in this project:
Front-end Developer
Front-end DeveloperContributions:87 commits, 10 PRs, 95 pushes in 1 year 4 months
Contributions summary:Hyeon-seok focused on updating and translating the TypeScript Handbook in Korean. Their work involved modifying the HTML content, likely to reflect the Korean translation of the handbook. They also made changes to the navigation and structure of the documentation to ensure the translated content was properly displayed. This primarily involved editing and adapting the HTML files to integrate the Korean translations.
typescript-handbooktranslatehandbookkoreantypescript
pocojang/recoil-todo
Sep 2020 - Dec 2020
Contributions:82 commits, 20 pushes in 3 months
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