Encoder Technologies

Technology · Node.js

Node.js development for real-time and integration-heavy systems

Node.js is our answer when a system is held together by events rather than transactions: live interfaces, third-party integrations, streaming and message processing, and anything where the work is waiting on other systems more often than it is waiting on a person.

Engineering rationale

Why we reach for Node.js

The reasons below are the ones that decide a project. Anything a competitor can say about a framework's features, you can read in their documentation — what is harder to find is why a particular team picks it for a particular problem.

01

The same language on both sides of the wire

When a team writes TypeScript on the client and TypeScript on the server, the types describing an API payload are shared rather than maintained twice. For an integration-heavy system where payloads are the whole problem, that removes an entire category of bug.

02

It handles waiting well

A Node service blocked on I/O — a payment provider, a courier API, a warehouse scanner — is not wasting a thread. That is the exact shape of an integration layer, and it is why Node is the default for the glue between systems that were never designed to talk.

03

One deployable for many small services

A webhook receiver, a notification worker, a reconciliation job and a public API can each be a small Node service with its own pipeline. Where the operational overhead is not worth it, several can share one deployment with internal boundaries.

04

Event-driven design is a real discipline, not a slogan

The hard part is not emitting events, it is what happens when one is delivered twice, out of order, or never. Idempotency keys, retry with backoff and a dead-letter queue are designed in from the start rather than added after the first incident.

What we build

Node.js work, in outcome terms

Not a capability list. These are the engagements we take on, described by what changes for the business when they are finished.

Third-party and payment integrations

Payment providers, courier and logistics APIs, accounting packages and government or banking integrations — including the reconciliation when the two systems disagree.

Real-time and live interfaces

Server-sent events and WebSockets for dashboards that update without polling, and for interfaces where waiting for a round trip is visibly slower.

API services and gateways

Documented REST and webhook surfaces, authentication, rate limiting and versioning, in front of systems that were not built to be consumed.

Background workers and queues

Long-running jobs — report generation, bulk imports, batch reconciliation, notifications — with retries, backoff and dead-letter handling.

Limits and alternatives

Where Node.js is the wrong answer

We would rather lose the enquiry than take a project the technology cannot serve. These are the cases where we recommend something else — including other things we build.

The wrong tool for the data model at the heart of the system

If the core of the product is a relational ledger with real constraints, that belongs in a database designed for constraints, usually PostgreSQL or MySQL, with the application logic in Laravel or Python. Node earns its place at the edges, not necessarily in the middle.

CPU-bound work will block the event loop

A long synchronous computation in a request handler stalls every other user of that process. Heavy numerical or compression work belongs in a worker thread, a queue, or a different language — we design for that rather than discovering it under load.

It is not the right answer for scientific or analytical computing

The Python ecosystem for data science and machine learning is years ahead and is not going to close the gap. Where the work is analysis rather than integration, we use Python.

The surrounding stack

Node.js in the system we build

No technology runs alone. This is the rest of the stack that ships alongside it, so you can see the whole system rather than one component.

  • TypeScript
  • React
  • Next.js
  • PostgreSQL
  • Redis
  • Docker
  • REST APIs

FAQ

Node.js — questions

The questions buyers actually ask before commissioning Node.js work, answered without hedging.

When do you choose Node.js over Laravel?

When the work is I/O-bound and event-driven — lots of waiting on other systems, live interfaces, webhook consumers — or when the client team is TypeScript end to end. When the product is a transactional ledger, Laravel with its query builder, migrations and policies is usually the better core, and we can use Node at the edges around it.

Is Node.js fast enough for our workload?

For anything involving network and database I/O, yes, and it scales horizontally by adding processes. The honest limit is CPU-bound computation inside a request, which blocks the event loop; that work goes to a worker or another language.

Do you build microservices in Node?

When the boundaries are real — different scaling profiles, independent release cadence or genuine ownership lines. We do not split a system into services for its own sake; a well-structured modular application is often the better answer and cheaper to run.

Can you add realtime features to an existing application?

Yes. Server-sent events or WebSockets in front of an existing system is a contained piece of work — the hard part is usually the authorisation on the event stream, not the socket itself.

Need Node.js work done properly?

Tell us what you are building and what is going wrong today. We will tell you whether this is the right technology, what it will take, and whether it is worth building at all.