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howardsun-dev/README.md

Portfolio LinkedIn TypeScript React Node.js AWS

Full-Stack Software Engineer

I build end-to-end products — from realtime chat systems and desktop apps to cloud-deployed portfolios with automated CI/CD pipelines. I care about security, testing, maintainable architecture, and shipping.

Featured Projects

Project What it is Tech
LANShare LAN file-sharing server with browser UI, CLI, traversal-safe paths, and full test suite TypeScript, Node.js, Express, Playwright, Vitest
LANShare Electron Cross-platform desktop wrapper (Win/macOS/Linux) with release artifacts TypeScript, Electron, GitHub Actions
QuickChat Realtime chat with JWT auth, Socket.IO, media uploads, bot protection React, Node.js, MongoDB, Socket.IO, Arcjet, Tailwind CSS
CI/CD Portfolio This portfolio — React 19 + TypeScript deployed to AWS via GitHub Actions React 19, Vite, TanStack Router, AWS S3/CloudFront

Focus Areas

Languages: TypeScript · JavaScript · Python · C++ Frontend: React · Zustand · Redux Toolkit · TanStack Router · Tailwind CSS Backend: Node.js · Express · Socket.IO · REST APIs · JWT Databases: MongoDB · PostgreSQL · Amazon Aurora Infrastructure: AWS S3 · CloudFront · EC2 · Docker · GitHub Actions Testing: Jest · Playwright · Vitest · Mocha/Chai

Open to Opportunities

I'm actively looking for full-stack / frontend engineering roles where I can own features end-to-end and raise the bar on code quality and delivery. Let's talk: howardsun@pm.me

Pinned Loading

  1. open-source-labs/Swell open-source-labs/Swell Public

    Swell: API development tool that enables developers to test endpoints served over streaming technologies including Server-Sent Events (SSE), WebSockets, HTTP2, GraphQL, gRPC, and tRPC..

    JavaScript 983 144

  2. cicd-portfolio cicd-portfolio Public

    React 19 + TypeScript portfolio with TanStack Router, Three.js, Vite, anime.js. Deployed to AWS S3/CloudFront with full GitHub Actions CI/CD pipeline (lint → test → build → deploy).

    TypeScript

  3. LANShare-electron LANShare-electron Public

    Cross-platform Electron desktop app (Windows/macOS/Linux) wrapping LANShare with auto-detected local IP, browser-based file download UI, and GitHub Actions release builds for all three platforms.

    TypeScript

  4. quickchat quickchat Public

    Full-stack real-time chat app with React, Node.js, Express, Socket.IO, MongoDB, Zustand. Features JWT auth, Cloudinary uploads, Arcjet security, and Tailwind CSS.

    TypeScript