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Overview

Developed a scalable full-stack web application with React.js frontend and Node.js backend. The application handles real-time data processing, user authentication, and complex business workflows.

Technology Stack

• Frontend: React.js, Redux for state management, Material-UI for components
• Backend: Node.js, Express.js framework
• Database: PostgreSQL for relational data, MongoDB for document storage
• Real-time: WebSockets for live updates
• Authentication: JWT-based authentication with refresh tokens

Key Features

• Responsive design for all device sizes
• Real-time notifications and updates
• RESTful API architecture
• Role-based access control (RBAC)
• File upload and management
• Advanced search and filtering

Architecture

The application follows a microservices-inspired architecture with clear separation between frontend and backend. The RESTful API design allows for easy integration with mobile applications and third-party services.

Performance Optimizations

• Code splitting and lazy loading in React
• Database query optimization and indexing
• Caching strategies for frequently accessed data
• Image optimization and CDN integration
• API response compression

Results

The application successfully handles thousands of concurrent users with sub-second response times. The modular architecture made it easy to add new features and maintain the codebase. The real-time capabilities enhanced user experience significantly.