Typed REST and GraphQL APIs
TypeScript services on Fastify, NestJS or Express with schema validation using Zod and generated client types.
Languages and frameworks
Node.js development.
Node.js runs JavaScript on the server, which lets one team and one language span the front end and back end. Its event-driven model suits APIs, real-time features and integration-heavy work.
A short call. Your first build, a fixed quote, and the timeline. No obligation.
What we build with Node.js
Where it fits.
Real-time features
WebSocket and server-sent event features such as live dashboards, chat and presence using Socket.IO or native sockets.
Queue workers
BullMQ workers that process uploads, webhooks and scheduled jobs with retries and rate limiting.
Serverless functions
Small functions on AWS Lambda or edge runtimes for webhooks, form handling and glue between SaaS tools.
When it is the right choice
Choose Node.js when
- →Your front end is JavaScript or TypeScript and you want shared types and a shared team.
- →The workload is mostly waiting on I/O: databases, APIs and sockets.
- →You need real-time updates pushed to the browser.
Worth knowing
Honest trade-offs.
- →Heavy CPU work blocks the event loop, so we move it to worker threads or another service.
- →The npm ecosystem is huge and uneven, so we keep dependencies lean and audited.
Often paired with
TypeScriptPostgreSQLRedisPrismaDockerReact
Related services
Services that use it.
Proof
Work built by the same team.
Closeum
13+ connected modules from calls through commissions
13+connected modules
5role types
32completed transactions
40+leads managed
SIIMS
Orders, production, warehouse, and dispatch on the same records
4operational roles
37backend tests passed
17hosted workflow tests passed
Ledgerline
603 tests passed in a dated financial-control verification
SAR 760Kcash reconciled end to end
603tests passed
14control findings fixed
3finance sources in one ledger
Common questions
Before you start.
Express, Fastify or NestJS?
Fastify for lean, fast services, NestJS when a larger team wants enforced structure, and Express when compatibility with existing code matters. We pick based on the team and the product.
Is Node.js good for large systems?
Yes, with TypeScript, clear module boundaries and tests. Without those it can drift, which is why we set them up from the start.
Can it handle CPU-heavy tasks?
Not on the main thread. We offload to worker threads, a queue or a service in Python, Go or Rust.
What do you build with Node.js?
APIs, Real-time features, Integrations, Serverless functions, and related work. We choose Node.js when it is the right fit for the product, the team and the budget.
Can you work with our existing Node.js code?
Yes. We can review what you have, fix what is fragile, and extend it, or build alongside your team.
Keep exploring
More than Node.js.
Where we apply it
The Audit
Get my free AuditKnow what to build first.
Book a short call and show us one workflow. You leave with what we would build first, a fixed quote, and what should wait.