Xonier Technologies
Starting from US $15/Hour

Hire Node.js
Developers

Build fast, scalable & secure applications with Node.js. From blazing-fast Express.js APIs and NestJS microservices to real-time Socket.io apps — we deliver backends that handle millions of concurrent connections without breaking a sweat.

300+ Clients · 48 Countries · Non-blocking I/O · V8 Powered

6+ Years Experience
150+ Engineers
500+ Projects Delivered
99.9% Uptime
6+ Years Experience
150+ Engineers
500+ Projects Delivered
99.9% Uptime

What We Build

End-to-End Node.js Development Services

From idea to deployment — blazing-fast and scalable web apps, RESTful & GraphQL APIs, microservices, real-time features, and robust mobile backends using the Node.js ecosystem.

Custom Node.js Web App Development

From idea to deployment, building blazing-fast and scalable web apps using Express.js, NestJS, or Koa.js. Clean architecture, dependency injection, modular design, and TypeScript-first codebases that scale from startup to enterprise.

API Development & Integration

Developing secure, high-performance RESTful and GraphQL APIs to power front-ends or third-party services. We handle authentication (JWT/OAuth2), rate limiting, API versioning, Swagger documentation, and third-party integrations like Stripe, Twilio, and AWS.

Microservices Architecture

Building microservice-based solutions using Docker, Kubernetes, and Node.js for speed, scalability, and fault tolerance. Event-driven architectures with RabbitMQ or Kafka, service discovery, API gateways, and distributed tracing with OpenTelemetry.

Real-Time App Development

Implementing live chat, notifications, or streaming features using WebSockets (Socket.io) for event-driven systems. We build collaborative tools, live dashboards, multiplayer game backends, and real-time analytics pipelines that handle thousands of concurrent connections.

Backend for Mobile & Web Apps

Providing robust backends with authentication, database, and caching layers for React, Angular, Vue, or Flutter front-ends. Redis caching, MongoDB or PostgreSQL data layers, push notification services, and file upload pipelines with S3 integration.

NLP & AI-Powered Chatbots

Chatbot engineering using state-of-the-art NLP (Dialogflow, Rasa, GPT-based APIs) to understand user queries and detect intent. We integrate LLM APIs into Node.js backends, build conversational flows, and deploy intelligent assistants for customer support and automation.

Our Workflow

5-Step Node.js Development Process

From free consultation to post-launch support — a structured Agile process that delivers production-ready Node.js applications with weekly sprints, real-time progress tracking, and comprehensive test coverage.

Node.js v22 NestJS Express.js Socket.io MongoDB Redis GraphQL Docker / K8s
Step 01

Requirement Gathering & Consultation

Understanding project needs and technical challenges with a free 30-minute consultation, NDA signing, and clear project scope definition. We map out the full backend architecture — API contracts, data models, real-time requirements, and cloud infrastructure — before writing a single line of code.

Step 02

Planning & Architecture Design

Designing backend architecture with a focus on scalability and security. Includes database schema design, API endpoint planning, microservice boundaries, event-driven messaging patterns, and caching strategies — all documented before development begins.

Step 03

Agile Development

Coding with weekly sprints and demo deliveries, featuring real-time progress tracking and continuous client collaboration. TypeScript-first development, code reviews, pair programming, and continuous integration ensure quality at every sprint boundary.

Step 04

Testing & Quality Assurance

Extensive testing including unit/integration testing (Jest, Mocha), API testing (Postman, Swagger), and performance/security audits. Load testing with k6, vulnerability scanning with Snyk, and end-to-end test coverage before every release.

Step 05

Deployment & Support

Handling deployment to AWS, Azure, or Google Cloud with CI/CD setup and ongoing maintenance. Docker containerization, Kubernetes orchestration, GitHub Actions pipelines, and proactive monitoring with Datadog or New Relic — zero-downtime deployments guaranteed.

Technologies

Our Node.js Tech Stack

Node.js v22 LTS

Runtime

NestJS

Framework

Express.js / Koa

Web Framework

Socket.io

Real-time

MongoDB

Database

Redis

Caching

GraphQL

API Layer

Docker / K8s

DevOps

Start Your Digital Transformation

See firsthand how our AI-powered suite can revolutionize your operations. Schedule a personalized demo with our experts today.

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