3Tech
Backend

Node.js

Fast to build, easy to hire for, boring in production.

What it is

Node.js is a JavaScript runtime for servers. Our default for most backend work, because it lets one team write both the frontend and the backend in the same language.

Why we reach for it
  • Shared language across frontend and backend - smaller team, less context switching.
  • Large ecosystem of mature libraries for almost any common task.
  • Strong async I/O story - ideal for API gateways, real-time apps, and I/O-heavy workloads.
  • Easy to hire for, which matters after we hand the system over to your team.
When we don’t
  • -CPU-heavy workloads - image processing, video encoding, heavy ML - belong in Python or Go.
  • -Latency-critical systems where garbage collection pauses matter - Go or Rust may be right.
Where it shows up

Engagements where Node.js typically lands.

Also in Backend
Working with Node.js?

Tell us what you’re shipping.

30 minutes, no pitch deck. We’ll ask what you’re building, what hurts, and whether we’re the right fit. Node.js expertise is table stakes - we talk scope, not résumés.