I will build your nodejs backend API with typescript mongodb and real time websocket

G
giangaz
G
giangaz
Giang N
build your nodejs backend API with typescript mongodb and real time websocket
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build your nodejs backend API with typescript mongodb and real time websocket
Full Screen
Full Screen
build your nodejs backend API with typescript mongodb and real time websocketbuild your nodejs backend API with typescript mongodb and real time websocketbuild your nodejs backend API with typescript mongodb and real time websocket

About this gig

Are you tired of backend code that breaks under real traffic?


I'm Giang Senior Backend Engineer with 9+ years building production systems. I led backend development for 30+ live games and apps handling thousands of concurrent users.


What I build for you:

- REST APIs with Node.js and TypeScript

- Real-time WebSocket systems (chat, game rooms, live sync)

- MongoDB schema design and query optimization

- JWT authentication with refresh token flow

- Redis caching for better performance

- VPS deployment with PM2 and Nginx


Why clients choose me:

- 9+ years of real production experience

- 30+ shipped apps and games with real users

- Clean TypeScript code your team can maintain

- Fast response I won't disappear after delivery

- I ask the right questions before starting


What makes me different:

I've optimized MongoDB queries from 3s to 80ms. I've debugged WebSocket servers under 5000 concurrent connections. I've built backends supporting Web, iOS, and Android simultaneously.


To get started I need:

- What you want to build

- Your current stack (if any)

- Expected users and deadline


Message me before ordering I'll review your requirements and make sure I'm the right fit.

  • Programming language

    • TypeScript

  • Expertise

    • Algorithms & Data structures
    • Debugging
    • Performance
    • Design
    • Databases

  • Frontend framework

    • Next.js
    • Nuxt.js
    • React.js
    • Tailwind CSS
    • Vue.js

  • Backend framework

    • Express.js
    • Fastify
    • NestJS
    • Next.js
    • Node.js

  • AI & low/no code builders

    • Firebase Studio

Get to know Giang N

Giang N

Software Engineer

  • FromVietnam
  • Member sinceMay 2026
  • Avg. response time1 hour

  • Languages

    English
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.

My Portfolio

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