Node.js Development

One language across the whole stack

Node.js earned its place for a specific reason: it lets a team share language, tooling, types and often validation logic between the browser and the server. For a product with a busy JavaScript or TypeScript frontend, that removes an entire translation layer and a category of bugs that comes with it.

It is also genuinely good at what it was designed for — handling many concurrent connections that spend most of their time waiting on something else. APIs that fan out to other services, real-time features over WebSockets, streaming uploads and webhook endpoints all sit comfortably inside Node’s event loop.

Where Node.js is the right call

• API and BFF layers that aggregate several downstream services into one response shaped for a specific client.
• Real-time features — presence, live updates, chat, collaborative editing, notifications.
• Server-rendered React or Vue applications, where the rendering server and the app are the same codebase.
• Serverless functions, where a fast cold start and a small deployment package matter more than raw throughput.
• Internal tooling and build infrastructure, which the ecosystem is unusually well stocked for.

Where we would suggest something else

We would rather tell you this before a contract than after. CPU-bound work — image and video processing, large report generation, simulation, heavy data transformation — blocks the event loop and fits badly, and worker threads only paper over it. Numerically heavy or data-science adjacent work belongs in Python. Long-lived transactional systems with complex domain rules are often better served by Java or .NET, where a mature type system and threading model earn their keep.

Keeping a Node service healthy in production

Most Node projects that go wrong do so in operations rather than in application code. The parts we treat as non-negotiable: TypeScript with strict settings from the start, dependencies kept few and audited, structured logging and tracing wired in before launch, graceful shutdown so deploys do not drop in-flight requests, and pinned runtime versions on a current LTS line so security patches are a routine upgrade rather than a project.

The stack we work in

Node on a current LTS release with TypeScript throughout. Fastify, NestJS or Express depending on how much structure a team wants imposed. Prisma or Drizzle for typed database access, PostgreSQL as the default store, Redis for caching and queues, BullMQ for background jobs, Vitest and Playwright for tests, and Docker images built in CI. For frontends that render on the server we work with Next.js and Nuxt.

Node engineers can join your team through outstaffing, or we can take a service on as a self-contained outsourced piece of work.