• Based in Seoul, KR
• Focused on backend engineering, developer experience, and open-source contribution
• Comfortable shipping across the stack when needed, but my core focus is backend

Backend & infrastructure

Hands-on frontend experience

TypeScript, React, Next.js, and Tailwind CSS — useful for shipping product work, but not my main positioning.

• EatMate — Backend Lead & Product Owner for a food mate matching service
• Hiphadi — Full-stack contributor on an online menu service
• GachonOJ — Frontend contributor for an online judge system at Gachon University
• CodeMetrics With Kotlin — JetBrains plugin for real-time Java/Kotlin code complexity analysis with K2 support

I actively contribute across community, team, and open repositories, with upstream contributions to projects like Gradle and OpenJDK.

• Gradle #33676 — Fixed module metadata specification behavior by allowing integer attribute values
• Gradle #34326 — Improved the finalizer tasks documentation for clearer context and readability
• OpenJDK #28103 — Improved HttpClient NPE messages for clearer developer feedback
• OpenJDK #28084 — Fixed the synchronous HttpClient javadoc example

• oh-my-claudecode #1830 — Fixed a cancel-flow infinite loop when deferred state cleanup is active
• claude-talk-to-figma-mcp #61 — Added image tools and fixed a critical error-handling timeout
• claude-talk-to-figma-mcp #57 — Fixed a coordinate-system mismatch by exposing both global and local node positions
• claude-talk-to-figma-mcp #52 — Added post-join verification to prevent false connection success
• worldmonitor #912 — Added a Korean DMZ geopolitical boundary layer with interactive map details
• worldmonitor #794 — Improved i18n, memoization, and locale-safe formatting

• Gachon University — 2019.03 to 2025.02
• Leets — 2024.09 to 2025.02