ML.
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Software Engineer @ UJET · ex-Founder/CTO · Seoul, open to global roles

MARTIAN
LEE.

I move fast with AI — and keep the decisions that matter human.

↓ View projectsPostsCV ↗GitHub ↗
01 — ProjectsAll projects →
Mo

More Munch

Web Service

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.

CheerCat

CheerCat

Mobile App

A daily journaling app that builds the habit of praising yourself every day — a small ritual for a positive mindset.

Earth Invaders

Earth Invaders

Arcade Game

A Phaser3 arcade shooter. Fend off the aliens invading Earth, classic arcade style.

Fish Tank Simulator

Fish Tank Simulator

Idle Game

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.

02 — Recent postsAll posts →

I take large codebases apart and write down how they actually work.

2026년 9월 5일 · 20 min read · webmcp / browser-automation

WebMCP Explained: What Changes in Browser Automation When a Web Page Hands Tools Directly to an AI Agent?

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.

2026년 9월 5일 · 3 min read · climate / carbon

Carbon Basics 1: What carbon is, and why it matters

What CO₂e means, how much CO₂ has built up in the air, how much of the 1.5 °C budget is left, and how big a tonne really is, shown in four 3D visuals instead of paragraphs.

Analyzing DeepSeek Harness: How Do You Build an Agent Harness Where "Everything Is a Plugin"?2026년 9월 5일
bitchat Architecture: How Do You Deliver a Message With No Internet and No Radio Range?2026년 7월 25일
Hallmark Architecture: How Do You Stop Designs From Looking 'AI-Generated' — With a Prompt?2026년 7월 24일
03 — ExperienceCV ↗

UJET — Software Engineer 2

UJET is AI-Powered Cloud Contact Center Platform for Premium CX · Rails · GCP · Node.js · TypeScript · Kubernetes

2024 - Present

TomorrowUse — Co-founder / CTO

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

2021 - 2023

Miso — Frontend Developer

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

2020 - 2021
Open to senior / staff engineering roles — globally.
Email ↗GitHub ↗LinkedIn ↗