Leon Lee

Leon Lee

Senior Software Engineer

Building high-quality, AI-powered web products

About Me

I’m a Senior Software Engineer with 10+ years of experience building production-grade web products across SaaS, developer platforms, and AI-driven applications. I specialize in frontend development with React, Next.js, and TypeScript, while maintaining a strong full-stack foundation in Node.js, Python, and Go.

I enjoy working on complex, data-heavy interfaces—especially where performance, reliability, and usability really matter. Recently, my work has focused on AI-powered products, building real user workflows around LLM and RAG systems with an emphasis on trust, explainability, and production readiness.

Recent Work

Enterprise AI Document Search Platform
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Enterprise AI Document Search Platform

AI-powered document search with verifiable, citation-backed answers over large document collections

ReactTypeScriptRAGLLM
Developer Dashboard Platform
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Developer Dashboard Platform

Developer dashboard for configuring projects and managing deployments at scale

Next.jsReactTypeScriptNode.js
Real-Time Monitoring Dashboards
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Real-Time Monitoring Dashboards

Interactive dashboards for exploring real-time metrics and high-volume monitoring data

ReactD3.jsData Visualization
Live Shopping Platform
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Live Shopping Platform

Real-time live streaming e-commerce platform with integrated product listings and interactive shopping experience

ReactWebRTCReal-timeE-commerce

Core Skills

React
Next.js
TypeScript
Node.js
Python
Go
PostgreSQL
AWS