Taewan Kim

Discord Bot 'Haru'

Haru is a multi-purpose, all-in-one Discord bot designed to resolve the inconvenience of a fragmented environment where multiple bots had to be individually introduced depending on the purpose of operating a Discord server. It maximizes user convenience by integrating core features necessary for community management—such as server administration, music, and economy systems—into an intuitive interface. Beyond simple feature integration, this project was designed based on a highly scalable modular architecture capable of stably replacing multiple bots. In particular, we focused on performance optimization to process concurrent requests from a large number of users without delay, and on building a system that can flexibly respond to the ever-changing Discord API ecosystem. Currently, it is actively used in over 220,000 servers, serving as a flagship project that proves my capabilities in stable live service operation and technical problem-solving in large-scale traffic environments.

An integrated web platform for student management, attendance tracking, and program operation used at the 'Kkumdream' Out-of-School Youth Support Centers. Taking over a legacy project developed by another company, the following improvements were made: • Migrated the build system from Maven to Gradle to improve build speed and dependency management • Upgraded the outdated Spring framework with security vulnerabilities to the latest version • Solved server storage accumulation issues by switching QR attendance image generation from server-local file creation to client-side rendering