You will get expert backend development for seamless performance and growth
Project details
Develop Node.js Backend API with Node.js, NestJS, Express.js & MongoDB
Are you looking for a professional Node.js backend developer to build, fix, or optimize your backend system? With 3+ years of experience in Node.js, Express.js, PostgreSQL, and MongoDB, I specialize in delivering secure, scalable, and high-performance APIs tailored to your needs.
What I Offer:
Custom Node js API Development (REST & GraphQL)
MongoDB, PostgreSQL & MySQL Database Design
Authentication & Authorization (JWT, OAuth, Social login)
Microservices Architecture
Real-time APIs using WebSockets & Socket.io
API Integration with third-party services
Bug Fixing, Debugging & Performance Optimization
Error Handling, Logging & Unit Testing
Payment, Email & SMS Gateway Integration
DevOps
Tech Expertise: JavaScript, TypeScript, Node.js, Express.js, MongoDB, PostgreSQL, MYSQL, GitHub, Docker, Socket.io, GraphQL
I ensure clean, optimized, and production-ready code with fast delivery.
Contact me before placing your order to discuss your project in detail.
Expert Node.js & Nest.js Backend Developer
Are you looking for a professional Node.js backend developer to build, fix, or optimize your backend system? With 3+ years of experience in Node.js, Express.js, PostgreSQL, and MongoDB, I specialize in delivering secure, scalable, and high-performance APIs tailored to your needs.
What I Offer:
Custom Node js API Development (REST & GraphQL)
MongoDB, PostgreSQL & MySQL Database Design
Authentication & Authorization (JWT, OAuth, Social login)
Microservices Architecture
Real-time APIs using WebSockets & Socket.io
API Integration with third-party services
Bug Fixing, Debugging & Performance Optimization
Error Handling, Logging & Unit Testing
Payment, Email & SMS Gateway Integration
DevOps
Tech Expertise: JavaScript, TypeScript, Node.js, Express.js, MongoDB, PostgreSQL, MYSQL, GitHub, Docker, Socket.io, GraphQL
I ensure clean, optimized, and production-ready code with fast delivery.
Contact me before placing your order to discuss your project in detail.
Expert Node.js & Nest.js Backend Developer
Programming Languages
HTML & CSS, JavaScript, TypeScriptCoding Expertise
PSD to HTML, Performance OptimizationWhat's included
| Service Tiers |
Starter
$20
|
Standard
$100
|
Advanced
$150
|
|---|---|---|---|
| Delivery Time | 1 day | 3 days | 15 days |
Number of Revisions | 3 | 4 | Unlimited |
Number of Pages | 1 | 3 | 10 |
Design Customization | - | - | |
Content Upload | - | ||
Responsive Design | - | ||
Source Code |
About Shah
Backend Engineer | AI-Powered Web & Mobile App Specialist
Gilgit, Pakistan - 12:17 am local time
I’m Shah Zain, a Backend Software Engineer with 3+ years of experience building secure, scalable, and high-performance systems for AI-powered web and mobile applications. I turn ideas into production-ready digital solutions that perform flawlessly in the modern cloud environment.
💡 What I Bring to the Table
⚙️ Backend Engineering Excellence
Expert in crafting clean, optimized, and scalable backends using Node.js, Express.js, and TypeScript — integrated with MongoDB, Mongoose, and PostgreSQL. From authentication to database design, I ensure your APIs are production-grade and future-proof.
🤖 AI & Automation Integration
I build intelligent systems that interact and adapt. Whether it’s an AI chatbot, content generator, or automated decision engine, I integrate tools like OpenAI, Gemini, and LangChain to power smart, context-aware backends.
📱 Backend for Web & Mobile Apps
Seamless API integration for both React / Next.js and React Native platforms — ensuring fast, reliable communication between front-end interfaces and backend logic. I handle everything from real-time messaging to data synchronization using WebSockets.
☁️ Deployment & Cloud Expertise
Strong experience in deploying and scaling applications on DigitalOcean — from droplet setup and load balancing to environment optimization. I configure NGINX, handle CI/CD pipelines, and ensure your backend runs smoothly in a secure and efficient production environment.
🧠 Modern Architecture & DevOps
I design maintainable and modular systems using industry best practices. Skilled in Git, NGINX, API security, and containerized environments, I help you deploy faster and scale smarter.
🧩 Tech Stack
Languages: JavaScript, TypeScript, SQL
Frameworks: Node.js, Express.js
Databases: MongoDB, Mongoose, PostgreSQL
AI Tools: OpenAI API, Gemini API, LangChain
Cloud & DevOps: DigitalOcean, NGINX, Git, PM2, CI/CD Pipelines
Protocols: REST, WebSockets, JSON APIs
🌍 Why Work With Me?
Whether you’re launching an AI-driven startup, developing a mobile app backend, or scaling your SaaS infrastructure, I deliver:
✅ Clean, maintainable, and secure code
✅ High-performance APIs with smooth AI integrations
✅ Scalable deployments on DigitalOcean
✅ Reliable communication and on-time delivery
Let’s turn your vision into a fully functional, intelligent, and scalable backend.
💬 Ready to get started? Let’s connect today!
Steps for completing your project
After purchasing the project, send requirements so Shah can start the project.
Delivery time starts when Shah receives requirements from you.
Shah works on your project following the steps below.
Revisions may occur after the delivery date.
Why is React a good choice for modern web applications?
React offers a component-based architecture, making it efficient and flexible for building reusable UI elements. This ensures faster rendering and a dynamic user experience, essential for today's web applications.