Software Engineer @ UJET · ex-Founder/CTO · Seoul, open to global roles
I move fast with AI — and keep the decisions that matter human.
A lunch-recommendation service for office workers. It auto-collects nearby restaurants (discoverable via the OpenClaw skill-optimized API) and suggests a fresh lunch every day based on your visit history and ratings.
A daily journaling app that builds the habit of praising yourself every day — a small ritual for a positive mindset.
A Phaser3 arcade shooter. Fend off the aliens invading Earth, classic arcade style.
A pixel-art idle productivity tool that blends a Pomodoro timer with an aquarium sim. Complete focus sessions to earn fish eggs, collect 12+ species, and grow your own tank.
I take large codebases apart and write down how they actually work.
I booted DeepSeek Harness with a single npx command and no API key, dumped its 145-row boot tree with --dump-config, and edited the patch layer by hand. The web profile ships with every model-facing tool switched off, and the reason turns out to be interesting. I also walked straight into the trap where patching a row config silently kills a CLI flag.
WebMCP is a W3C Community Group proposal in which a web page registers JavaScript functions and HTML forms as "tools" on document.modelContext, and the browser mediates those tools to the user's agent. This article lays out the imperative and declarative APIs and the boundaries the browser guarantees, straight from the spec, then calls real tools with Chrome 152 and agent-browser 0.36 to see how it differs from accessibility-tree automation.
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