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Node.js Development

Node.js APIs, real-time services, and microservices built to handle concurrency and scale without falling over.

Overview

What we deliver

Node.js shines for real-time features, high-concurrency APIs, and services that need to share code with a JavaScript front-end. We build Node backends with clean architecture and proper error handling, so they stay reliable under load instead of becoming a callback maze. You get a senior team and a backend that scales with your traffic.

What’s included

  • REST and GraphQL APIs built for high concurrency
  • Real-time features with WebSockets and event streams
  • Microservices and background workers where they fit
  • Auth, rate limiting, and security done properly
  • Database design across SQL and NoSQL
  • Automated tests, logging, and CI/CD for reliability

The outcome

What you can expect

Concrete results, not vanity deliverables.

  • APIs that hold up under concurrent load
  • Real-time features that stay responsive at scale
  • Shared language and code across front-end and back-end

Our process

How we work

No black boxes and no surprises. You see progress every week and own everything at the end.

  1. 01

    Discovery and scope

    We map your goals, scope, timeline and budget on a free call, then put it all in writing before anything starts.

  2. 02

    Design and plan

    Architecture, UX and a clear sprint plan you sign off on, so there are no surprises once we build.

  3. 03

    Build in weekly sprints

    Working software every week with a live demo, so you see real progress and steer as we go.

  4. 04

    Launch and hand over

    We ship to production and transfer 100% of the source code and IP to you. No lock-in.

  5. 05

    Support and grow

    Optional maintenance, monitoring and iteration once you are live, for as long as you need us.

Why us

Why teams choose Aneri

The same standards on every engagement, whether it is a one-week sprint or a multi-year build.

Senior team, no hand-offs

You work directly with senior engineers, not juniors hidden behind a sales layer.

You own 100% of the IP

All source code and intellectual property is transferred to you in writing. No lock-in.

NDA-first, always

Every engagement starts under an NDA. Your idea and your data stay yours.

Weekly demos

Transparent sprints with a working demo every week, so you steer as we build.

US and Europe overlap

Real working-hours overlap with US, Europe and Middle East time zones.

Proven since 2015

500+ projects delivered for startups and established brands worldwide.

FAQ

Common questions

Is Node.js right for our project?

It is a strong fit for real-time apps, high-concurrency APIs, and JavaScript-heavy stacks. For CPU-heavy workloads we will tell you honestly if another runtime fits better.

Can you build microservices with Node?

Yes, when the scale justifies it. We avoid premature complexity and split services only where it genuinely improves reliability and deployment.

Ready to start?

Let’s scope your node.js development project together. Free call, clear estimate, no obligation.

Book a discovery call

30-minute call · we reply within 1 business day · NDA on request.