Jisu Um
Frontend Developer at Tappytoon(태피툰)
Seoul, South Korea
Summary
👤
Senior🎓
Top SchoolJisu Um is a Seoul-based frontend developer with eight years of experience building React and Next.js web applications and deploying them in Kubernetes environments. She rapidly ships customer-focused MVPs and has a proven knack for learning new domains—building an Ethereum-based NFT marketplace from scratch in six months and using blockchain features to deter scalping and attach real-world benefits to NFTs. As a frontend lead she improved team productivity and morale through tooling (ESLint, Prettier, husky), CI work, roadmap coordination, and visible scheduling, while driving performance gains like reducing page load by over 3 seconds and cutting average gas costs via protocol migration. She blends hands-on implementation (infinite scroll hooks, MetaMask/JSON-RPC flows, WebSocket queueing, multi-chain support) with operational improvements (Strapi for fast brand pages, Docker/Kubernetes deployments). Known for deliberate communication and continuous learning, she favors pragmatic engineering that aligns product goals with developer experience.
9 years of coding experience
6 years of employment as a software developer
학사, 사학, 학사, 사학 at 성신여자대학교
Stackoverflow
1reputation
0reached
0answers
0questions
Github Skills (31)
dev-server10
vite10
type-system10
frontend10
hmr10
typescript9
gatsbyjs8
prism8
fonts8
markdown7
typeface7
resume6
gatsby5
utterances5
react-native4
Programming languages (4)
Github contributions (5)
thumbsu/thumbsu
Aug 2020 - Mar 2026
Contributions:6 pushes, 1 branch in 5 years 8 months
thumbsu/resume
Jun 2019 - Sep 2021
Contributions:13 commits, 18 pushes in 2 years 3 months
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