Simplileap
All technologies

// Backend Runtime

Node.js

Our primary backend runtime for API and service development.

8+ years, 120+ projects

// Overview

How we use Node.js

Node.js powers most of our backend API work — the non-blocking I/O model, TypeScript native support, and the npm ecosystem make it highly productive for API-first backends, real-time services, and integration platforms.

// Use cases

  • REST and GraphQL APIs
  • Real-time WebSocket servers
  • Integration and webhook services
  • Background job processors
  • CLI tools and automation scripts

// Why it matters

TypeScript native

First-class TypeScript support with ts-node and esbuild — no context switching between languages in full-stack TypeScript projects.

Non-blocking I/O

Handles thousands of concurrent connections efficiently — the right model for API servers that primarily perform I/O rather than CPU computation.

npm ecosystem

The world's largest package registry provides solutions for virtually every integration need — from AWS SDK to payment gateways to PDF generation.

// Related services

Services using Node.js