Byungwoo Yoo
Chief Technology Officer at 株式会社JT
Seoul, South Korea
Summary
👤
Senior🎓
Top SchoolByungwoo Yoo is a seasoned technology leader and CTO with 13 years of experience building high-performance backend systems and AI-driven products from Seoul. He was a core developer on LINE Messenger during its rapid growth to hundreds of millions of users and later co-founded Slidejoy before scaling its product into Buzzvil’s global lockscreen ad platform. At Mathpresso he led AI and search efforts that turned the company into the largest auxiliary provider for digital math textbooks while cutting infrastructure costs by half. Known for pragmatic architecture—introducing DDD, clean architecture, Go, and Netty micro editions—he blends hands-on engineering with strategic leadership across startups and scale-ups. An electrical engineering graduate from Seoul National University with a business minor, he pairs technical depth with product and operational fluency.
13 years of coding experience
17 years of employment as a software developer
Bachelor of Science (B.S.), Electrical and Electronics Engineering (minor. Business school), Bachelor of Science (B.S.), Electrical and Electronics Engineering (minor. Business school) at Seoul National UniversityDaewon Foreign Language High School
Korean, English
Stackoverflow
1reputation
0reached
0answers
0questions
Github Skills (35)
algolia10
application-context10
github-pages10
jekyll10
algolia-search10
jekyll-theme10
netty9
django9
newrelic9
android9
android-library9
customer8
kotlin8
go5
php4
Programming languages (7)
Github contributions (5)
urunimi/android-netty
Dec 2013 - Mar 2015
Netty Client for Android
Contributions:24 commits, 2 pushes, 1 comment in 1 year 3 months
androidnetty
urunimi/codelab-library
Jun 2013 - May 2019
Contributions:187 commits, 91 pushes, 3 branches in 5 years 11 months
kotlinandroid-libraryandroidapplication-context
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