g
giangaz

Giang N

@giangaz

Software Engineer

Vietnam
About me
Backend Engineer with 9+ years of software engineering experience, including 4+ years focused on backend development using Node.js, TypeScript, MongoDB, Redis, REST APIs, and real-time systems. Experienced in designing and building scalable backend services, authentication systems, API platforms, WebSocket-based real-time services, caching strategies, database optimization, and production deployment on Linux/VPS. Hands-on experience with Cocos Creator across multiple Web, iOS, and Android games, including game architecture, UI implementation, performance optimization, and backend integration.... Read more

Skills

g
giangaz
Giang N
Offline • 
Average response time: 1 hour

See my services

Full Stack Web Applications
I will build your nodejs backend API with typescript mongodb and real time websocket
From$20 / projectMore details
Full Game Creation
I will design build and optimize your cocos creator game for web ios and android
From$50 / projectMore details

Portfolio

Work experience

Freelancer.com

Balut Dice - Senior Backend / Fullstack Engineer

Freelancer.com • Freelance

Sep 2022 - Present • 3 yrs 8 mos

Designed and developed backend services using Node.js, TypeScript, MongoDB, and Redis. Built REST APIs and real-time communication services for Web, iOS, and Android clients. Implemented authentication flow using JWT and refresh token. Designed MongoDB schemas and optimized queries/indexes for better performance. Used Redis for caching, session-related data, and backend performance optimization. Deployed and maintained backend services on Linux VPS using PM2 and basic CI/CD workflow. Worked with Git-based development workflow, including branching, review, and deployment process. Wrote clean, maintainable TypeScript code following modular backend structure. Supported production issue investigation, bug fixing, performance optimization, and system improvement. Key results: Improved API/system performance through caching and query optimization; built production backend systems supporting real-time interactions and future feature expansion.

Dynamite Game - Tech Lead / Backend-oriented Game Engineer

Gameroama • Full-time

Nov 2019 - Nov 2023 • 4 yrs

Led development of multiple online game systems with real-time and high-concurrency requirements. Designed server-side architecture for turn-based, round-based, and multiplayer application flows. Built reusable backend components and server-side modules to accelerate development across multiple projects. Worked on real-time communication, state synchronization, and server-side business/game logic. Developed and optimized multiple cross-platform games using Cocos Creator for Web, iOS, and Android. Collaborated with developers to design features, review code, and improve system quality. Optimized performance and improved maintainability across multiple projects. Mentored team members and supported technical decision-making. Key results: Led development of 30+ online games, improved performance/system efficiency by approximately 20%, and managed/mentored a team of 5-8 developers.