Jinhyeok Lee
Product Engineer at flex
Seoul & Seohyeon, Korea, Republic of
Summary
👤
SeniorJinhyeok Lee is a product-focused frontend engineer with 12 years of experience building user-facing systems, currently at flex after recent work as a Staff Web Engineer at Coupang. He has led frontend and engineering divisions at MyMusicTaste, driving migrations to modern React/TypeScript stacks, hybrid MSA+Serverless architectures, and live-streaming platform features while handling GDPR and infra responsibilities. Comfortable across the stack, he has launched commercial mobile and web products as a freelancer and built real-time captioning and streaming tooling (Node.js, React, ffmpeg, OBS) from field experience. A longtime game modder and tooling author, he brings practical creativity—his past projects include public mods for major games and several Delphi freeware utilities—plus a hands-on curiosity for cutting-edge AI that earned him 3rd place in a 2023 hackathon.
13 years of coding experience
Stackoverflow
1reputation
0reached
0answers
0questions
Github Skills (200)
minecraft10
websocket10
hyper10
wysiwyg10
uptime-monitoring10
hybrid10
monitoring10
javascript10
rendering10
linux10
browser10
youtube10
react-component10
react-framework10
webapp10
Programming languages (12)
Github contributions (5)
zenyr/PocoHud3
Jun 2014 - Oct 2017
(Sunsetted) Payday2 Interface enhancer MOD
Contributions:2 releases, 409 commits, 21 PRs in 3 years 5 months
payday2minecraftmodenhancerminecraft-mod
zenyr/braytech.org-translations
Dec 2020 - Dec 2025
Contributions:14 pushes, 2 branches in 5 years
Find and Hire Top DevelopersWe’ve analyzed the programming source code of over 60 million software developers on GitHub and scored them by 50,000 skills. Sign-up on Prog,AI to search for software developers.