Node.js Development: High-Performance APIs and Clusters 

Stop blocking the Event Loop. We handle 10k req/s with P99 < 50ms. Controlled backpressure. Memory leaks: zero.

<50ms P99 Latency
10k+ Req/s per node
Request proposal View stack
Scroll

APIs, Microservices, Real-Time

Node.js architectures for every use case

Node.js is not just "JavaScript on the server". It's the optimal runtime for I/O intensive: REST APIs, GraphQL, WebSockets, message queues. NestJS for enterprise projects with DI and structure. Fastify for maximum performance microservices (2x Express). Worker Threads for CPU-bound tasks without blocking the Event Loop.

server.ts
// High-performance Fastify server
const app = Fastify({ logger: true });
app.get('/api/products', async (req) => {
return db.products.findMany({
where: req.query,
take: 100
});
});
<50ms P99
10k+ Req/s
0 Leaks

What We Deliver

Every Node.js project includes:

Incluido

  • Complete REST or GraphQL API
  • TypeScript strict mode throughout
  • Unit + integration tests (>80% coverage)
  • Load testing with Autocannon
  • CI/CD pipeline configured
  • Monitoring and alerts (Prometheus/Grafana)
  • OpenAPI/Swagger documentation
  • Deployment on EU servers (GDPR)

No incluido

  • WebSockets/real-time implementation
  • Monthly maintenance

For Decision Makers

Node.js enables high-concurrency APIs with a single language (JavaScript/TypeScript) on frontend and backend.

Reduces hiring costs: full-stack developers work on both sides of the stack.

npm ecosystem with millions of packages accelerates development. Faster time-to-market.

For CTOs

Optimized Event Loop: zero blocking operations. Worker Threads for CPU-bound tasks.

NestJS for enterprise projects with DI and structure. Fastify for maximum raw performance (2x Express).

Prisma/Drizzle for type-safe database access. BullMQ for job queues. Redis for caching and pub/sub.

Production Stack

NestJS / Fastify
TypeScript strict
Prisma / Drizzle
BullMQ + Redis
Vitest + Autocannon
Docker + K8s

Is It for You?

Who it's for

  • High-performance APIs (10k+ req/s)
  • Projects with real-time requirements (WebSockets)
  • Organizations with JavaScript/TypeScript stack
  • Startups needing fast iteration
  • I/O intensive systems

Who it's not for

  • CPU-bound intensive projects (better Python or Go)
  • Systems with heavy ML requirements
  • Teams without JavaScript experience

Risk Reduction

How we mitigate technical risks

Blocked Event Loop

Mitigación:

Production lag monitoring. Worker Threads for CPU-bound.

Memory leaks

Mitigación:

Heapdump + Clinic.js in staging. Sustained load tests.

Vulnerable dependencies

Mitigación:

npm audit in CI. Snyk for continuous scanning.

Methodology

01

API Contract

OpenAPI spec before code. Auto-generated types.

02

Core

Business logic with tests. Coverage >80%.

03

Load testing

Autocannon + Clinic.js. Iterative optimization.

04

Production

Rate limiting, graceful shutdown, monitoring.

Use Cases

High-concurrency APIs

10k+ req/s with predictable latency.

Real-time

WebSockets for chat, notifications, collaboration.

Microservices

Event-driven architectures with RabbitMQ/Kafka.

Case Study

10+ Years with Node.js
80+ APIs in production
Minimum test coverage >80%
Guaranteed uptime 99.9%

Frequently Asked Questions

Node.js for CPU-intensive tasks?

Not directly. We use Worker Threads for crypto/image processing, or Python microservices for heavy ML.

NestJS or Fastify?

NestJS for large teams and complex projects. Fastify for microservices and maximum performance (2x Express).

How do you detect memory leaks?

Heapdump in production with thresholds. Clinic.js in staging. Sustained load tests with heap tracking.

ORM or raw queries?

Prisma for DX and type-safety. Drizzle for critical performance. Raw only for specific optimizations.

How do you integrate with React/Next.js?

tRPC for end-to-end type-safety. GraphQL with Apollo Federation. REST with OpenAPI and typed SDK.

What if my team doesn't know Node.js?

Training included in enterprise projects. Initial pair programming. Team becomes autonomous.

Does it include hosting?

We configure on AWS, GCP, or VPS. EU servers for GDPR. Optional monthly maintenance.

Post-launch support?

Monthly maintenance contracts. Security updates, continuous optimization, technical support.

Unpredictable Latency?

Backend profiling. We find the bottleneck in your Event Loop.

Request proposal
✓ No commitment ✓ Response in 24h ✓ Custom proposal
Last updated: February 2026

Technical
Initial Audit.

AI, security and performance. Diagnosis with phased proposal.

NDA available
Response <24h
Phased proposal

Your first meeting is with a Solutions Architect, not a salesperson.

Request diagnosis