You will get Robust Node.js Backend | MongoDB Database | RESTful APIs | Express & NestJS
Top Rated
Top Rated
Project details
Build a powerful, scalable backend infrastructure with our comprehensive Node.js and MongoDB development services. As an experienced backend developer with 5+ years of expertise in server-side technologies, I'll create secure, high-performance APIs that power your applications and handle growth effortlessly.
Your backend system will include:
✦ RESTful API development with Express.js or NestJS
✦ MongoDB database design and optimization
✦ Secure authentication and authorization (JWT, OAuth)
✦ Data validation and error handling
✦ Database schema design and indexing strategies
✦ API documentation with Swagger/OpenAPI
✦ Middleware implementation for security and logging
✦ Third-party API integrations (Stripe, PayPal, etc.)
✦ Performance optimization and caching strategies
✦ Clean architecture following SOLID principles
Every backend package includes comprehensive API testing, security implementation, and detailed documentation. I follow industry best practices to ensure your backend is secure, scalable, and maintainable for long-term success.
Click "𝐂𝐨𝐧𝐭𝐢𝐧𝐮𝐞" to build a server infrastructure that handles millions of requests and scales with your business!
Your backend system will include:
✦ RESTful API development with Express.js or NestJS
✦ MongoDB database design and optimization
✦ Secure authentication and authorization (JWT, OAuth)
✦ Data validation and error handling
✦ Database schema design and indexing strategies
✦ API documentation with Swagger/OpenAPI
✦ Middleware implementation for security and logging
✦ Third-party API integrations (Stripe, PayPal, etc.)
✦ Performance optimization and caching strategies
✦ Clean architecture following SOLID principles
Every backend package includes comprehensive API testing, security implementation, and detailed documentation. I follow industry best practices to ensure your backend is secure, scalable, and maintainable for long-term success.
Click "𝐂𝐨𝐧𝐭𝐢𝐧𝐮𝐞" to build a server infrastructure that handles millions of requests and scales with your business!
Programming Languages
HTML & CSS, JavaScript, TypeScriptCoding Expertise
PSD to HTML, Performance Optimization, DesignWhat's included
| Service Tiers |
Starter
$200
|
Standard
$450
|
Advanced
$999
|
|---|---|---|---|
| Delivery Time | 3 days | 5 days | 10 days |
Number of Revisions | 4 | 8 | Unlimited |
Design Customization | - | ||
Content Upload | |||
Responsive Design | |||
Source Code |
Frequently asked questions
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UZ
Umm E Z.
May 7, 2026
MERN Stack Developer for Full-Stack Web Application (AWS Deployment)
Great full-stack developer. Delivered a complete solution of deployment with minimal issues.
UZ
Umm E Z.
May 4, 2026
MERN Stack Developer for Full-Stack Web Application (AWS Deployment)
Great full-stack developer. Delivered a complete solution of deployment with minimal issues.
UZ
Umm E Z.
Feb 24, 2026
Full-Stack developer Lightweight Admin Dashboard UI, KPIs, REST API
Great experience working on this Next.js + TypeScript admin dashboard project. Clean implementation of KPI cards, Recharts visualizations, and REST API integration. Would recommend for dashboard development, React/Next.js projects, REST APIs, and data visualization work.
HN
Hassan N.
Jan 26, 2026
Database Cleanup & Small Backend Improvement
Completed the database cleanup efficiently, removed unused records, and optimized a query without introducing any issues. Made a small backend logic improvement and ensured everything worked smoothly after cleanup. Strong backend skills with MySQL/MongoDB and Node.js/PHP. Delivered on time with clean, safe changes. Would hire again.
HN
Hassan N.
Jan 25, 2026
Fix Form Validation Issue & Minor JavaScript Error
Resolved a JavaScript form validation and console error efficiently. Form now works smoothly on desktop and mobile. Fast delivery, good communication, and strong frontend fundamentals.
About Mustafa
Full-Stack Developer | MERN Stack Developer | Web App Developer
100%
Job Success
Faisalabad, Pakistan - 9:58 am local time
I’m a Full Stack Developer and MERN Stack Developer specializing in React, Next.js, Node.js, TypeScript, SaaS development, REST APIs, database development, AWS deployment, and AI-powered web applications.
As a Top Rated Upwork developer with 100% Job Success, I’ve worked on SaaS platforms, full-stack web applications, admin dashboards, API-driven systems, ecommerce applications, cloud deployments, business integrations, automation workflows, and AI features.
⭐Full Stack & MERN Stack Development
- I build complete web applications across frontend, backend, databases, APIs, integrations, authentication, and deployment.
✔ Full Stack Development
✔ MERN Stack Development
✔ React Development
✔ Next.js Development
✔ Node.js Development
✔ TypeScript & JavaScript
✔ Express.js
✔ MongoDB & PostgreSQL
✔ REST API Development
✔ SaaS Web Applications
✔ Authentication & User Management
✔ Third-Party API Integrations
✔ AWS Deployment
⭐React & Next.js Development
- I develop responsive and maintainable applications for SaaS products, dashboards, portals, marketplaces, ecommerce platforms, and business platforms.
✔ React.js & Next.js
✔ TypeScript Applications
✔ SaaS Dashboards
✔ Admin Panels
✔ Customer Portals
✔ Responsive Web Development
✔ Reusable Component Architecture
✔ API-Connected Frontends
✔ Performance Optimization
✔ Existing Application Improvements
⭐Node.js, Backend & API Development
- I build backend systems that connect applications, databases, payment platforms, external services, and business workflows.
✔ Node.js & Express.js
✔ Backend Development
✔ REST API Development
✔ API Integration
✔ Webhooks
✔ MongoDB & PostgreSQL
✔ Authentication & Authorization
✔ Stripe Integration
✔ Shopify API Integration
✔ CRM & Business Integrations
✔ Backend Debugging & Optimization
⭐AI App Development & OpenAI Integration
- I integrate practical AI functionality into modern full-stack applications without sacrificing solid engineering fundamentals.
✔ OpenAI API Integration
✔ AI-Powered Web Applications
✔ AI SaaS Applications
✔ AI Chatbots
✔ RAG Applications
✔ Semantic & Vector Search
✔ LangChain Integration
✔ Pinecone, Weaviate & Qdrant
✔ Python & FastAPI Integration
✔ AI Workflow Automation
My Recent Projects:
MERN Web Application — built and deployed a full-stack application using React, Node.js, Express.js, MongoDB, REST APIs, and AWS.
Next.js Admin Dashboard — developed a Next.js and TypeScript dashboard with data visualization, reusable components, and REST API integration.
B2B SaaS Platform — built full-stack functionality using Next.js, Node.js, PostgreSQL, APIs, authentication, and third-party integrations.
Switchboard Cloud — developed SaaS features, integrations, embeddable widgets, and platform functionality using React, Next.js, Node.js, TypeScript, PostgreSQL, and AWS.
AI & RAG Applications — developed AI search, chatbot, knowledge retrieval, and automation features using OpenAI, LangChain, vector databases, and modern full-stack technologies.
⭐Core Technologies
Frontend: React, Next.js, TypeScript, JavaScript
Backend: Node.js, Express.js, Python, FastAPI, REST APIs
Databases: MongoDB, PostgreSQL, MySQL
AI: OpenAI API, RAG, LangChain, Pinecone, Weaviate, Qdrant
Integrations: Stripe, Shopify, Amazon SP-API, Xero, NetSuite, Salesforce
Cloud & DevOps: AWS, Docker, Vercel, CI/CD
✅ Why Clients Hire Me
✔ Top Rated & 100% Job Success
✔ Strong React, Next.js & Node.js expertise
✔ Proven MERN & Full Stack Development experience
✔ SaaS & web application development
✔ REST API & third-party integrations
✔ MongoDB & PostgreSQL development
✔ OpenAI & AI integration experience
✔ AWS deployment & cloud infrastructure
✔ Clear communication and reliable delivery
✔ Full ownership from development to deployment
Whether you need a Full Stack Developer, MERN Stack Developer, React Developer, Next.js Developer, Node.js Developer, SaaS Developer, API Developer, or AI App Developer, send me your requirements or existing application.
I’ll review what you need and recommend the most practical way forward.
SEO Keywords: Full Stack Developer, MERN Stack Developer, React Developer, Next.js Developer, Node.js Developer, SaaS Developer, Web App Developer, Backend Developer, API Developer, REST API Development, React.js, Next.js, Node.js, TypeScript, JavaScript, Express.js, MongoDB, PostgreSQL, AWS, OpenAI API, AI App Developer, AI SaaS Developer, RAG Developer, FastAPI Developer, API Integration, SaaS Development, Web Application Development
Steps for completing your project
After purchasing the project, send requirements so Mustafa can start the project.
Delivery time starts when Mustafa receives requirements from you.
Mustafa works on your project following the steps below.
Revisions may occur after the delivery date.
Requirements Analysis
Detailed discussion of business logic, data models, and API requirements
Database Design
MongoDB schema design, relationships setup, and indexing strategy