KAIST Computer Science undergraduate. I build products that real people use.

Shipping

• LIVE  Timeschool — night-study management platform, running 3 years under a school contract → jinsan.timeschool.kr
• BETA  Teamplo — turns a group-chat meeting into a personal to-do list · founder → teamplo.com
• DEV   MatchA — group calendar & scheduling coordination · core developer → matchall.co.kr

Most product code is private. Public work: an OAuth / PKCE compatibility fix merged into gbrain (v0.34.1.0).

Stack — TypeScript · React · Next.js · Node.js · Python

→ Full CV at hyunseok.dev