Joonmo Yeon
Frontend Web Developer at Toss Place(토스플레이스)
Seoul, South Korea
Summary
👤
Senior🎓
Top SchoolJoonmo Yeon is a frontend web developer with about eight years of experience and six years focused on building web and desktop apps using React, TypeScript, Electron, Next.js, and Go. Based in Seoul, he currently develops a native-like POS system on Electron and a cross-platform messaging SDK that leverages Tailscale for secure device-to-device communication. He cares deeply about developer experience and reliability, having simplified a complex P2P module into a predictable interface and stabilized device messaging to boost team productivity. His background includes roles at Toss Place, Viva Republica (Toss), HYPERCONNECT, and Catch Fashion, giving him exposure to both consumer and B2B product challenges. Joonmo thinks beyond his stack—prioritizing measurable impact, clear interfaces, and shared ownership—and actively seeks to learn from diverse teams. An underrated strength is his focus on making low-level networking and desktop integration feel native and easy for other engineers.
9 years of coding experience
4 years of employment as a software developer
대덕소프트웨어마이스터고등학교
Github Skills (24)
ansible-collections8
azerothcore7
react5
php5
python5
frontend4
mysql3
typescript3
postcss3
redux3
nodejs3
ctf2
javascript2
redux-saga2
sanic2
Programming languages (7)
Github contributions (5)
engolder/learning-vue
Nov 2017 - Apr 2018
Contributions:76 commits, 44 pushes, 1 branch in 5 months
engolder/Web-Graphicer
Oct 2017 - May 2019
My own open-source project
Contributions:54 commits, 50 pushes, 1 branch in 1 year 7 months
pythonopen-source-project
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