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Node.js 22 Β· Express Β· NestJS

🟒 Node.js
Fast, scalable backend APIs.

Our Node.js engineers build production-grade REST and GraphQL APIs, real-time backends, and microservice architectures β€” typed with TypeScript throughout.

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// Node.js at Nexcode
// Node.js expertise
version: "Node.js 22 Β· Express Β· NestJS"
projects: 70+
rating: 4.8β˜…
delivery: "on-time & on-budget"
70+
Node.js APIs Built
4.8β˜…
Client Rating
<50ms
Avg API Latency
TypeScript
100% on New Projects
70+
Node.js APIs Built
4.8β˜…
Client Rating
<50ms
Avg API Latency
TypeScript
100% on New Projects
Use Cases

What we build with Node.js

Production applications we ship using Node.js every day.

πŸ—
REST & GraphQL APIs

Versioned REST APIs and GraphQL schemas β€” documented, tested, and built to last.

⚑
Real-Time Backends

WebSocket servers, event-driven systems, and chat/notification backends.

πŸ”—
Microservices

Service mesh architectures with event buses, message queues, and API gateways.

πŸ“±
BFF for Mobile

Backend-for-frontend layer that aggregates data perfectly for each client type.

πŸ€–
AI API Integration

OpenAI/Anthropic integration, streaming completions, tool calling, and rate management.

πŸ”
Auth Systems

JWT, OAuth2, session management, RBAC β€” secure auth for any architecture.

Expertise Breakdown

Our Node.js capabilities

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API Design

REST & GraphQL Mastery

βœ“ Clean API design that clients love to consume.
⚑
NestJS

Enterprise Node.js

βœ“ Decorators, modules, DI β€” NestJS for complex backends.
πŸ—„
Database Layer

ORM & Query Mastery

βœ“ Prisma, TypeORM, and raw SQL when performance demands.
πŸ”
Auth & Security

Secure by Default

βœ“ JWT, OAuth2, API keys, and OWASP top 10 mitigations.
πŸ§ͺ
Testing

Comprehensive Coverage

βœ“ Unit, integration, and contract tests for every endpoint.
πŸ“Š
Observability

Production Visibility

βœ“ Structured logging, distributed tracing, and performance monitoring.
Development Process

How we deliver Node.js projects

01
πŸ“‹

API Design

02
πŸ—

Project Setup

03
βš™

Core Development

04
πŸ—„

Database Integration

05
πŸ”

Security Layer

06
πŸ§ͺ

Testing & Docs

07
πŸš€

Deploy

Ecosystem

The full Node.js ecosystem we use

Core
β†’ Node.js 22 LTS
β†’ TypeScript 5
β†’ NestJS
β†’ Express / Fastify
APIs
β†’ REST (OpenAPI 3)
β†’ GraphQL + Apollo
β†’ WebSockets
β†’ gRPC
Database
β†’ PostgreSQL
β†’ Prisma ORM
β†’ Redis
β†’ MongoDB
Queue/Events
β†’ Bull/BullMQ
β†’ RabbitMQ
β†’ Apache Kafka
β†’ AWS SQS
Testing
β†’ Jest
β†’ Supertest
β†’ k6 load tests
β†’ Pact
Deploy
β†’ Docker
β†’ AWS ECS
β†’ Kubernetes
β†’ GitHub Actions
When to choose

Node.js vs alternatives

An honest comparison to help you choose the right technology.

FeatureNode.jsNPGJ
PerformanceFastFastFastestFast
Startup TimeFastFastFastestSlow
EcosystemNPM (largest)PyPI (large)GrowingMaven (large)
Real-TimeNative (event loop)Good (async)ExcellentGood
TypeScriptFirst-classN/AN/AN/A
Best ForAPIs, real-time, full-stack JS teamsAI/ML, data, scriptingHigh-throughput microservicesEnterprise Java orgs
FAQ

Node.js
questions

Common Node.js questions before you decide.

Start a Project β†’
Node.js or Python for my backend?+
Choose Node.js if: your team knows JavaScript, you're building real-time features, or you want full-stack TypeScript. Choose Python if: AI/ML is central, your team is Python-first, or you need data science libraries. For pure API performance, Go is faster but has a smaller talent pool.
Express vs NestJS β€” which do you use?+
NestJS for anything beyond a simple API β€” the module system, DI, decorators, and built-in Swagger generation save enormous amounts of time on complex backends. Express/Fastify for simple services where NestJS's overhead isn't justified.
How do you handle real-time features?+
WebSocket via Socket.io or native ws library, with Redis Pub/Sub for horizontal scaling across multiple Node instances. For high-frequency data (trading, telemetry), we use Server-Sent Events for server-to-client streaming.
How do you ensure Node.js doesn't block the event loop?+
Async/await everywhere, CPU-intensive tasks offloaded to worker threads (Node.js worker_threads), and never blocking I/O. We profile production traffic with clinic.js to detect event loop lag.
Related Tech

Often used with Node.js

βš›
React/Next.js

Frontend that consumes your Node API.

Explore β†’
🐍
Python

For AI/ML services alongside Node.

Explore β†’
🐘
PostgreSQL

The database we pair with Node.

Explore β†’
☁
AWS

Where we deploy Node.js backends.

Explore β†’

Ready to build with Node.js?

Senior Node.js engineers Β· Fixed-price quotes Β· Free discovery call Β· 24hr proposal.

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