Hi, I'm Tom Leung

Backend Developer

I build robust and scalable backend systems for web and mobile applications, with experience in TypeScript, Go, and cloud technologies.

About Me

My Professional Background

I'm a Backend Developer with experience in building robust and scalable systems for web and mobile applications. Currently working at Daytech HK, a mobile game studio developing a 2D multiplayer shooter game with NFT technology.

I specialize in TypeScript (React, Express), Go, and cloud technologies. I have experience with Postgresql, Redis, Docker, and AWS for building high-performance backend systems and infrastructure.

My professional focus includes API development, CI/CD implementation, system optimization, and integrating cloud services for better scalability and performance.

Projects

A collection of my recent work

Vibe Chat

Vibe Chat

Real time chat application that allows users chat in real time. Features include joining chat rooms, real-time messaging, and showing online users in the chat room with presence indicators.

ElixirPhoenix FrameworkInertiaJSWeb Socket
Random Tools

Random Tools

Minimalistic website that contains various useful tools, including a UUID generator and timestamp converter. Built with a focus on simplicity and usability.

AstroJavaScriptWeb Tools

Coming Soon

Options Screener

Long term ongoing project aiming to be an optionstrat.com alternative with backtesting capability. Features include querying historical options data, building options combinations, and backtesting options strategies.

ReactJSGoFinancial API

Skills

Technologies and tools I've worked with

Frontend

  • HTML5
  • CSS
  • JavaScript
  • TypeScript
  • ReactJS
  • Tailwind CSS
  • Flutter

Backend

  • NodeJS
  • ExpressJS
  • Go
  • Python
  • RESTful APIs
  • Swagger

Database

  • PostgreSQL
  • Redis
  • Database Design
  • Caching

Cloud & DevOps

  • AWS
  • CloudFront CDN
  • Docker
  • CI/CD
  • Github Actions

Tools

  • Git
  • GitHub
  • Makefile
  • Sentry
  • Testing Frameworks

Other

  • Web Development
  • Game Backend
  • System Design
  • Optimization
  • AI Tools

Contact Me

Get in touch and let's work together

© 2025 Tom Leung. All rights reserved.