Node.js & NestJS Development

Build high-performance, scalable backend services with Node.js and NestJS. From RESTful APIs to real-time applications, we create robust server-side solutions that power modern web applications.

Start Backend Project

Why Node.js & NestJS?

โšก High Performance

Event-driven, non-blocking I/O model makes Node.js perfect for data-intensive real-time applications that scale across distributed devices.

๐Ÿ”ง JavaScript Everywhere

Use the same language for frontend and backend development, enabling code reuse and reducing context switching for development teams.

๐Ÿ—๏ธ Enterprise Structure (NestJS)

NestJS provides a structured, scalable architecture with TypeScript, decorators, and dependency injection for enterprise-grade applications.

๐Ÿ“ฆ Rich Ecosystem

Access to 1.5+ million packages via npm, extensive community support, and continuous innovation in the JavaScript ecosystem.

Node.js vs NestJS Comparison

๐ŸŸข Node.js with Express

Best for: Flexible, lightweight applications

  • Minimal setup and configuration
  • Maximum flexibility in architecture
  • Rapid prototyping and development
  • Smaller applications and APIs
  • Custom middleware and routing

Use Cases: APIs, microservices, real-time apps

๐Ÿฆ… NestJS Framework

Best for: Scalable, maintainable enterprise applications

  • TypeScript by default
  • Dependency injection system
  • Modular architecture
  • Built-in testing utilities
  • GraphQL and WebSocket support

Use Cases: Enterprise APIs, complex backends, microservices

Our Backend Development Services

API Development

  • RESTful APIs: Standard HTTP-based services
  • GraphQL APIs: Flexible query language implementation
  • Authentication: JWT, OAuth, session management
  • Rate Limiting: API protection and throttling
  • Documentation: OpenAPI/Swagger integration

Real-Time Applications

  • WebSocket: Bi-directional communication
  • Socket.io: Real-time event-based communication
  • Server-Sent Events: Live data streaming
  • Chat Applications: Messaging and notifications
  • Live Updates: Real-time data synchronization

Microservices Architecture

  • Service Decomposition: Breaking monoliths into services
  • API Gateway: Request routing and aggregation
  • Service Discovery: Dynamic service location
  • Message Queues: Asynchronous communication
  • Container Deployment: Docker and Kubernetes

Project Portfolio

E-commerce API Platform (NestJS)

Challenge: Build scalable e-commerce backend supporting multiple storefronts with complex inventory management.

Solution: Developed microservices architecture using NestJS with GraphQL, PostgreSQL, and Redis caching.

Results:

  • Handling 100K+ concurrent users
  • Processing 50K+ orders daily
  • 99.9% API uptime
  • Sub-200ms response times

Tech Stack: NestJS, GraphQL, PostgreSQL, Redis, Docker

Real-Time Trading Platform (Node.js)

Challenge: Create low-latency trading system with real-time price updates and order matching.

Solution: Built high-performance Node.js application with WebSocket connections and optimized algorithms.

Results:

  • Sub-millisecond order processing
  • 10K+ concurrent WebSocket connections
  • Real-time price streaming
  • 99.99% system availability

Tech Stack: Node.js, Socket.io, Redis, MongoDB, AWS

IoT Data Processing (Node.js + Express)

Challenge: Process and analyze data from 100K+ IoT devices with real-time monitoring and alerting.

Solution: Developed scalable Node.js services with message queues, time-series database, and analytics.

Results:

  • Processing 1M+ data points per minute
  • Real-time anomaly detection
  • Scalable device management
  • Advanced analytics dashboard

Tech Stack: Node.js, Express, InfluxDB, RabbitMQ, Grafana

Social Media Backend (NestJS + GraphQL)

Challenge: Build social media platform backend with complex relationships, feeds, and real-time features.

Solution: Created NestJS application with GraphQL, sophisticated caching, and real-time subscriptions.

Results:

  • Supporting 1M+ registered users
  • Real-time feed updates
  • Complex social graph queries
  • Advanced content moderation

Tech Stack: NestJS, GraphQL, PostgreSQL, Redis, Elasticsearch

Technology Stack

Core Technologies

  • Node.js 18+ LTS
  • TypeScript
  • Express.js
  • NestJS Framework
  • Fastify (high performance)

Databases & Storage

  • PostgreSQL, MySQL
  • MongoDB, Mongoose
  • Redis for caching
  • Elasticsearch
  • InfluxDB (time-series)

API Technologies

  • RESTful APIs
  • GraphQL with Apollo
  • WebSocket, Socket.io
  • gRPC for microservices
  • OpenAPI/Swagger

DevOps & Tools

  • Docker containers
  • Kubernetes orchestration
  • PM2 process manager
  • Jest for testing
  • Winston for logging

Backend Development Best Practices

๐Ÿ—๏ธ Architecture Patterns

  • Clean Architecture principles
  • Domain-Driven Design (DDD)
  • CQRS and Event Sourcing
  • Microservices patterns
  • API-first development

๐Ÿ”’ Security & Authentication

  • JWT token-based authentication
  • OAuth 2.0 and OpenID Connect
  • Rate limiting and DDoS protection
  • Input validation and sanitization
  • HTTPS and security headers

โšก Performance Optimization

  • Database query optimization
  • Redis caching strategies
  • Connection pooling
  • Load balancing
  • Memory leak prevention

๐Ÿงช Testing & Quality

  • Unit testing with Jest
  • Integration testing
  • API testing with Supertest
  • Load testing
  • Code coverage monitoring

Why Choose Our Node.js Team?

๐Ÿ† Node.js Experts

Our developers have deep expertise in Node.js ecosystem, from Express.js to NestJS, with experience in building high-performance, scalable applications.

๐Ÿข Enterprise Experience

We specialize in enterprise-grade applications with complex business logic, integrations, and scalability requirements using NestJS and microservices.

โšก Performance Focus

We optimize Node.js applications for maximum performance using profiling, caching, clustering, and other advanced techniques.

๐Ÿ”„ Real-Time Expertise

Extensive experience in building real-time applications with WebSocket, Socket.io, and other technologies for live data synchronization.

Development Packages

API Development

Best for: RESTful or GraphQL APIs

Pricing: Contact for custom quote

  • Node.js/NestJS API development
  • Database integration
  • Authentication system
  • API documentation
  • Testing and deployment
Build API

Real-Time Application

Best for: Live data and messaging apps

Pricing: Contact for custom quote

  • WebSocket implementation
  • Real-time data synchronization
  • Scalable architecture
  • Performance optimization
  • Monitoring and analytics
Build Real-Time App

Microservices Platform

Best for: Enterprise scalable systems

Pricing: Contact for custom quote

  • Microservices architecture
  • API Gateway implementation
  • Service discovery
  • Container orchestration
  • Monitoring and logging
Enterprise Solution

Frequently Asked Questions

Should I choose Node.js with Express or NestJS?

Express is great for flexibility and rapid development, while NestJS provides structure and scalability for enterprise applications. We help you choose based on project complexity, team size, and long-term maintenance needs.

Can Node.js handle high-traffic applications?

Absolutely! Node.js excels at handling concurrent connections and I/O-intensive operations. With proper architecture, caching, and scaling strategies, Node.js can handle millions of requests.

Do you build real-time applications?

Yes! We specialize in real-time applications using WebSocket, Socket.io, and Server-Sent Events for chat applications, live dashboards, gaming, and collaborative tools.

How do you ensure API security?

We implement comprehensive security measures including JWT authentication, rate limiting, input validation, HTTPS enforcement, and security headers following OWASP guidelines.

Can you build microservices with Node.js?

Yes! We design and implement microservices architectures using Node.js/NestJS with proper service decomposition, API gateways, message queues, and container orchestration.

What about database integration and optimization?

We work with SQL and NoSQL databases, implement efficient ORMs, optimize queries, set up connection pooling, and design proper database schemas for optimal performance.

Ready to Build Scalable Backend Services?

Let's create high-performance APIs and backend systems that power your applications.

Start Backend Project Discuss API Requirements