Sangpil Yoon
CTO at Grasta Inc.
Seoul, South Korea
Summary
👤
Senior🎓
Top SchoolSangpil Yoon is a seasoned technology leader and CTO with over 20 years of experience building backend systems across gaming, finance, and social apps, currently leading engineering at Grasta after a long tenure at Hyperconnect. He played a pivotal role in architecting and scaling the Azar backend, embedding DevOps practices and building high-performing teams that persisted through Hyperconnect’s acquisition by Match Group. Equally comfortable in Korean and English, he bridges product and engineering to translate business goals into reliable, production-grade services. His background spans hands-on backend engineering from early online games to large-scale video communication services and financial systems, giving him rare cross-domain depth. Known for strategic hiring and operational rigor, he combines pragmatic technical judgment with people-first leadership to drive continuous innovation.
12 years of coding experience
24 years of employment as a software developer
Bachelor of Science (B.S.), Computer Science and Engineering, Bachelor of Science (B.S.), Computer Science and Engineering at Seoul National University
English, Japanese, Korean
Stackoverflow
79reputation
10kreached
7answers
0questions
Github Skills (71)
observer10
carthage10
swift10
xcode10
macos10
objective-c10
ios10
cocoapods10
reactive9
rxswift9
functional9
tint9
countdown9
reactivex9
ipod9
Programming languages (3)
Github contributions (5)
yoonhg84/CPSelectionManager
Apr 2016 - Nov 2016
Contributions:2 releases, 37 commits, 1 PR in 6 months
selectionswiftios
ArchitectureStudy/study
Jan 2017 - Nov 2017
Contributions:23 commits, 20 pushes, 1 branch in 10 months
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