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ARANEUX

Development

Node.js development

APIs, real-time systems and integrations in Node.js and TypeScript that stay fast under load.

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In short

Our Node.js work covers REST and GraphQL APIs, real-time features over WebSockets, webhook-heavy integrations and background workers, all in TypeScript with typed validation at every boundary. A new API or integration layer usually takes six to seven weeks, load testing included, and fixed-scope builds start from $5k.

Backends that are quick to build and quiet to run.

Node.js is our default for APIs, real-time features and integration-heavy backends. One language across front and back, a huge ecosystem, and excellent performance for I/O-bound work like chat, notifications and webhooks.

We've built Node.js systems since the early days: payment and exchange backends, blockchain indexers, WhatsApp messaging platforms, workflow engines and the APIs behind mobile apps. Today we write them in TypeScript, with typed validation at every boundary.

Whether you need a new API, a real-time feature with WebSockets, or a tangle of third-party integrations made reliable, we design for retries, observability and the day traffic doubles.

Is this for you?

You'll get the most out of this if

  • You need an API for a web or mobile app
  • You're adding real-time features like chat, presence or live updates
  • Your product depends on many third-party APIs and webhooks
  • Background jobs keep failing silently
  • You want one language across front end and back end

Deliverables

What you walk away with

  1. 01

    A documented API

    REST or GraphQL with typed schemas, versioning and OpenAPI docs your front-end and partners can rely on.

  2. 02

    Real-time where needed

    WebSockets or Socket.io with Redis for scale, for chat, notifications and live dashboards.

  3. 03

    Reliable jobs and integrations

    Queues, retries, idempotency and dead-letter handling, so webhooks and syncs don't lose data.

  4. 04

    Observability

    Structured logs, metrics, traces and alerts from day one.

Timeline

How the project runs

Typical timings for a first live version. We confirm yours in writing after discovery.

  1. Week 1

    Design

    Data model, API contract and integration map, agreed in writing.

  2. Weeks 2 to 6

    Build

    Endpoints, jobs and integrations, shipped behind feature flags with tests.

  3. Week 7

    Load and harden

    Load testing, security review and failure drills.

  4. Ongoing

    Run

    Monitoring, upgrades and new features.

Usual stackNode.js, TypeScript, Express, Fastify, NestJS, GraphQL, Socket.io, Redis, BullMQ, PostgreSQL, MongoDB, Docker, AWS

Why a small studio

The person who scopes your project is the one who builds it, and the one who picks up when it breaks at 2am.

The founder is on your project
Hussain leads every build himself. You won't brief an account manager who briefs a developer who briefs someone else.
Three people, the output of ten
We build with Claude, Codex and our own agent tooling every day. A small senior team now covers what used to need a department.
We stay after launch
Evals before every release, a log of each AI decision, cost limits and someone on call. Month six matters more to us than demo day.
Your repo, your cloud
The code sits in your GitHub and runs in your AWS, GCP or Azure account from the first commit, on tools your next hire already knows.
Projects shipped
115
since 2014
Clients served
53
US, UK, EU, Middle East, APAC
Average rating
5.0
113 of 113 rated jobs
Years shipping software
18
the founder, since 2008

Case studies

Where we've done this before

FAQ

Questions people ask

Express, Fastify or NestJS?

Fastify or Express for lean services, NestJS when a larger team benefits from more structure. We'll recommend one in scoping based on your team and the size of the system.

Can Node.js handle high traffic?

Yes, for I/O-heavy workloads it's one of the most efficient options. CPU-heavy work like image processing or ML goes to dedicated workers or Python services.

Do you work with MongoDB or PostgreSQL?

Both. We default to PostgreSQL for new systems and work in MongoDB happily when it's already in place or the data really is document-shaped.

Keep exploring

Start here

Let's scope yours.

Send a few lines about the workflow or product. You'll hear back from Hussain within a working day with questions, a rough shape and a ballpark.

Book a free callhello@araneux.com