Event-driven, non-blocking I/O for API gateways, real-time applications, and BFF layers. The natural choice for connection-heavy workloads.
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Node.js processes I/O asynchronously through its event loop, making it efficient for connection-heavy workloads where threads would be wasteful.
With ESM modules, top-level await, and built-in fetch and test runners, Node.js is reducing its dependency on third-party packages. Fastify benchmarks at 76,000+ requests per second.
Technology snapshot
Current industry demand for this technology
How widely used by development teams worldwide
How well it handles growth in load and complexity
At a glance
Schema-based validation for high-throughput APIs. NestJS adds structured, decorator-based architecture.
Persistent connection workloads for live dashboards, collaborative editing, and notification systems.
The most widely supported serverless runtime. Cold starts under 100ms on Lambda, Workers, and Edge Functions.
BFF services and API gateways between React front-ends and Java or .NET backends.
Event loop phases, microtask queues, worker threads, and diagnostics via clinic.js.
WebSocket notification systems with reconnection logic, backpressure handling, and Redis pub/sub scaling.
OpenTelemetry, Pino structured logging, and health checks reporting event loop lag and memory usage.
Node.js engineers who also build the React front-ends. One team, one language, shared types.
Lambda and Workers with cold start optimisation, connection pooling, and cost modelling for variable traffic.
Talk to our Node.js engineers about API architecture, WebSocket design, or serverless deployment.
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