Hyunseok Lee
Principal Engineer at Warmblood Co., Ltd.
Seoul, South Korea
Summary
👤
Senior🎓
Top SchoolHyunseok Lee is a Principal Engineer and backend specialist with 12 years of experience building scalable, high-performance systems using Laravel, PHP and Go. He has a proven track record upgrading legacy codebases, introducing TDD and CI/CD, and raising test coverage from 14% to 56% at a major logistics platform. As the sole backend engineer, he scaled a gaming platform from 50k to 700k users and later built APIs supporting 300k daily orders for a delivery system, demonstrating hands-on ownership of reliability and infrastructure. An entrepreneur and publisher, he combines product intuition with engineering discipline—having launched businesses, automated operational workflows with Raspberry Pi, and co-authored developer books on clean architecture. He excels at translating business goals into maintainable systems and hiring and scaling teams while keeping a developer-first culture. Based in Seoul, he brings a blend of practical engineering craft and strategic, business-savvy leadership.
12 years of coding experience
14 years of employment as a software developer
석사, 경영학, 석사, 경영학 at 경희대학교 / Kyung Hee University
Korean, English
Github Skills (21)
laravel10
usergroup10
php10
documentation10
cryptocurrency6
cryptography5
crypto5
javascript4
feed4
database3
react3
rss3
eloquent3
typescript2
composer2
Programming languages (7)
Github contributions (5)
ModernPUG/doc
Dec 2015 - Nov 2022
Modern PHP User Group 문서
Contributions:10 commits, 1 PR, 9 pushes in 6 years 11 months
php
smartbos/php-the-right-way
Apr 2015 - Nov 2022
PHP: The Right Way 한국어판 프로젝트입니다.
Contributions:17 pushes, 5 branches in 7 years 8 months
php
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