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 (22)
laravel10
php10
documentation10
usergroup9
cryptocurrency6
cryptography6
crypto6
feed5
mysql5
eloquent5
javascript4
oop4
database4
design-patterns3
web-development3
Programming languages (5)
Github contributions (5)
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
ModernPUG/allblog
May 2015 - Aug 2018
PHP 블로거들의 글 모음 웹사이트. Modern PHP 멤버들 중 일부가 Laravel 학습을 목적으로 만들었습니다.
Contributions:70 commits, 2 PRs, 55 pushes in 3 years 2 months
laravelphpphp-laravelmodern-php
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