Build Fast Backends with Node.js
Node.js Development Services
The runtime that changed backend development forever — trusted by Netflix, LinkedIn, PayPal, Uber, Walmart, NASA, and millions of projects worldwide. Node.js runs JavaScript on the server with a non-blocking, event-driven architecture that handles thousands of concurrent connections with ease. We build Node.js backends that are blazing fast, incredibly scalable, and perfect for real-time applications, APIs, microservices, and everything in between.
Our Node.js Development Services Include
We build Node.js backends that power modern digital products. REST APIs and GraphQL endpoints with Express or NestJS, real-time features with Socket.io and WebSockets, serverless functions on AWS Lambda and Vercel, microservices with Docker and Kubernetes. JavaScript everywhere — frontend to backend to database — with one language, one ecosystem, and lightning-fast performance.
Learn MoreWhat We Build For You with Node.js
Node.js uses Google's V8 engine to run JavaScript on the server — non-blocking I/O, an event-driven architecture, and the largest package ecosystem in the world (npm). It is lightweight, insanely fast for I/O-heavy workloads, and perfect for real-time, data-intensive applications. Here is what we build with it.
REST APIs & GraphQL Backends
We build high-performance APIs with Express.js, Fastify, or NestJS that handle thousands of requests per second. RESTful endpoints with proper routing, validation (Joi, Zod), authentication (JWT, OAuth 2.0, Passport.js), rate limiting, pagination, and consistent error handling. GraphQL APIs with Apollo Server or Mercurius for flexible data fetching — your frontend gets exactly the data it needs in a single request. We connect to PostgreSQL, MongoDB, MySQL, or Redis and use Prisma, TypeORM, or Mongoose for clean data access. Your API is documented with Swagger, tested with Jest, and ready for production.
Real-Time Applications
Node.js was born for real-time. We build live chat systems, collaborative editing tools (like Google Docs), multiplayer game servers, live dashboards, notification systems, and streaming platforms using Socket.io and native WebSockets. Node's event loop handles thousands of simultaneous connections without breaking a sweat — each user gets instant updates the moment data changes. We also build real-time features like live auctions, stock tickers, delivery tracking, and sports scoreboards. If your app needs to push data to users the instant it happens, Node.js is the perfect choice.
Microservices & Event-Driven Architecture
We architect Node.js microservices that are lightweight, independently deployable, and horizontally scalable. Each service runs in a Docker container, communicates via REST, gRPC, or message queues (RabbitMQ, Kafka, AWS SQS, Redis Pub/Sub), and deploys to Kubernetes or serverless platforms. We implement API gateways, service discovery, circuit breakers (with libraries like opossum), distributed tracing (OpenTelemetry), and centralized logging (Winston, Pino). Your system scales each service independently based on demand — the chat service scales separately from the payment service. No single point of failure.
Serverless & Cloud Functions
Why manage servers when you do not have to? We build serverless Node.js functions on AWS Lambda, Google Cloud Functions, Azure Functions, and Vercel Edge Functions. Your code runs only when triggered — by HTTP requests, database changes, file uploads, scheduled events, or message queue messages. You pay only for the milliseconds your code actually runs. We use the Serverless Framework or AWS CDK for infrastructure as code, connect to DynamoDB, S3, SQS, and API Gateway, and build event-driven architectures that scale from zero to millions of requests automatically. Perfect for webhooks, data processing pipelines, and APIs with unpredictable traffic.
Full-Stack JavaScript with NestJS
NestJS is the enterprise-grade Node.js framework — built with TypeScript, inspired by Angular's architecture, and designed for large, complex backend systems. We build NestJS applications with modules, controllers, services, guards, interceptors, and pipes — clean, testable, and properly structured. It supports REST, GraphQL, WebSockets, gRPC, and microservices patterns out of the box. Combined with a React, Angular, or Vue frontend, you get a full-stack JavaScript application where your team uses one language across the entire stack — shared types, shared validation, shared models. Faster development, fewer bugs.
Performance & Node.js Migration
Slow Node.js app? We fix it. We profile your application with clinic.js and 0x, identify event loop blockers, optimize database queries, implement connection pooling, add caching layers (Redis, in-memory), enable clustering for multi-core utilization, and fine-tune garbage collection. Your API response times drop from seconds to milliseconds. We also migrate legacy backends (PHP, Ruby, Python, Java) to Node.js — endpoint by endpoint, with API compatibility preserved throughout the transition. Or we upgrade your old Express 3/4 codebase to modern patterns with TypeScript, async/await, proper error handling, and NestJS architecture.
How We Work
Discovery
Workshops, research, and business goals alignment to define your vision and project scope.
Planning
Solution blueprint, technology stack selection, and roadmap for scalable digital growth.
Design
User-centred design, wireframes, prototypes, and interactive mockups for validation.
Development
Agile sprints, rapid prototyping, and continuous integration for faster, smarter delivery.
Testing
Quality assurance, performance testing, and security validation to ensure reliability.
Deployment
Go-live execution, training, and ongoing support to keep solutions future-ready.
Our clients and projects
Software solutions for monitoring Oil & Gas company
Our Front-End engineers work as part of the team of a US company — the leader in Digital Oilfield Solutions. The task was to create an upgraded version of a web-based solution that optimizes oil and gas equipment and answers critical questions about its condition and performance.
VIEW CASE STUDY ❯❯❯
“The quality of the work and engagement has been so good. They go beyond simply executing a task, story or test and are genuinely interested in understanding what the end user wants/needs.”
Media content management platform
ANC is a New York-based company that builds unforgettable digital experiences for brand marketing. Through immersive design and multimedia services, they transform commercial spaces — stadiums, entertainment venues, transit hubs, and trade centers.
VIEW CASE STUDY ❯❯❯
“They work to help develop our company instead of only being a third-party service provider. As a result, they’ve become a part of our company, which is very cool.”
ML-powered laboratory diagnostics software
Selux Diagnostics is a US biotech company transforming infectious disease diagnostics with rapid antibiotic susceptibility testing to combat antimicrobial resistance and enable personalized therapies.
VIEW CASE STUDY ❯❯❯
“INNERLUXES resources are embedded in our team and serve as an extension to our workforce. And during the inevitable crunch periods INNERLUXES was able to rapidly increase our access to a skilled resource pool.”
AI-powered automation platform
Our client provides an AI-based collaborative platform that helps SRE teams respond to production incidents using a breakthrough approach. With this product, they can adopt SRE methodologies and reduce toil while getting a unified view of incidents.
VIEW CASE STUDY ❯❯❯
“The reliability and quality of the work done by the team are impressive.”
Frequently Asked Questions
Got questions about Node.js? Here are simple, honest answers to what people ask us most.
What is Node.js and why should I use it?
Node.js is a JavaScript runtime built on Google Chrome's V8 engine. It lets you run JavaScript on the server instead of just in the browser. What makes Node.js special is its non-blocking, event-driven architecture — it handles thousands of concurrent connections without creating a new thread for each one. That makes it incredibly fast for I/O-heavy tasks like API calls, database queries, file operations, and real-time communication. Netflix, LinkedIn, PayPal, Uber, Walmart, and NASA all use Node.js. If you want a fast, scalable backend using the same language as your frontend — Node.js is the answer.
Node.js vs Python vs PHP — which one should I choose?
Each has strengths. Python excels at data science and machine learning. PHP powers WordPress and legacy web apps. Node.js dominates when you need real-time features, high-concurrency APIs, and full-stack JavaScript. Node.js is 5-10x faster than PHP for concurrent requests, has the largest package ecosystem (2+ million npm packages), and lets your team use JavaScript on both frontend and backend — shared code, shared types, one language to hire for. If you are building APIs, real-time apps, microservices, or modern web platforms, Node.js is typically the best choice. We help you pick the right tool for your specific project.
Is Node.js good for large-scale enterprise apps?
Absolutely. Netflix serves 250+ million users on Node.js. LinkedIn rebuilt their mobile backend in Node.js and got 20x faster performance. PayPal switched from Java to Node.js and cut response times in half. The key is using the right architecture — and that is where frameworks like NestJS shine. NestJS gives you enterprise patterns (modules, dependency injection, guards, interceptors) with TypeScript for type safety. Combined with microservices architecture, proper testing, CI/CD, and monitoring — Node.js handles enterprise scale beautifully. We have built Node.js systems processing millions of daily transactions.
Do you use TypeScript with Node.js?
Yes — always for production projects. TypeScript adds static types to JavaScript, which means bugs get caught during development instead of in production. Your IDE gives you perfect autocomplete, refactoring is safe, and new developers can understand the codebase quickly. NestJS is built with TypeScript from the ground up. Express and Fastify work perfectly with TypeScript too. We set up strict TypeScript configurations, use Zod or class-validator for runtime validation, and ensure your entire Node.js backend is fully typed from API requests to database queries. The result: fewer bugs, faster development, maintainable code.
How long does it take to build a Node.js backend?
It depends on complexity. A simple REST API with authentication takes 2-4 weeks. A medium-complexity backend with real-time features, payment processing, and third-party integrations takes 6-12 weeks. A full microservices platform or SaaS backend can take 3-6 months. Node.js development is fast because of npm — there is a well-tested package for virtually everything (authentication, email, payments, file uploads, image processing). We work in 2-week sprints, ship working features early, and give you a clear timeline and cost breakdown before we start.
Do you provide ongoing Node.js support?
Yes. After launch, we handle everything — bug fixes, performance optimization, Node.js version upgrades (LTS releases), security patches, npm dependency updates, and new feature development. We set up GitHub Actions or GitLab CI for automated testing and deployment, write unit and integration tests with Jest and Supertest, monitor performance with PM2 and Datadog, and handle AWS/GCP/Azure infrastructure. We also audit your npm dependencies for known vulnerabilities using npm audit and Snyk. Think of us as your Node.js backend team — we keep your servers fast, secure, and running 24/7.
Ready to Build a Backend
That Never Slows Down?
Tell us what you need. We will architect and develop a high-performance Node.js backend — APIs, real-time features, microservices, or serverless functions that scale effortlessly and handle anything you throw at them. Free consultation, real expertise, no strings attached.
Talk to Our Node.js Experts