I move fast with AI — and keep the decisions that matter human.
Software Engineer @ UJET · ex-Founder/CTO · Seoul, open to global roles
I take large codebases apart and write down how they actually work.
A Godot 4.6 game that streams its world in chunks froze for 0.1 to 0.3 seconds every time the player walked. A harness that walks the hero on its own and logs frame times found two causes: code scanning 19,000 nodes every physics tick, and code building and tearing down whole chunks in a single frame. After the fix, frames over 50 ms are gone.
This post opens the code of twelve passthrough mods that merge two running games into one and sorts them by what crosses the bridge: pixels, meshes, logic, or nothing at all.
UJET is AI-Powered Cloud Contact Center Platform for Premium CX
Rails · GCP · Node.js · TypeScript · Kubernetes
Climate-tech startup (product: Stepping). Sole engineer on a three-person founding team; built carbon-measurement and offset products end-to-end: app, infra, and CI/CD.
Next.js · React · Nest.js · PostgreSQL · AWS · 0to1
South Korea's leading home services platform. Responsible for client app maintenance and back-office development to improve CX operations.
React · React Native · Redux · TypeScript
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