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
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.

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