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Fast back ends, built to last

Node.js Development for Real-Time Products

Some features need an answer in milliseconds: a chat message, a live order status, an AI reply streaming onto the screen. A slow or fragile back end shows up as unhappy users.

We build Node.js services in TypeScript that stay fast under load, with queues for slow work, tests for every change and monitoring that tells you what is happening.

The same team can add AI features, connect your other systems and keep it all running after launch.

A Node.js server file, live connections, request flow, background jobs, event loop headroom and throughput chart
  • 11+Years of building business software
  • 50+Global long-term clients
  • 2,000+Projects delivered
  • 24 hrsResponse time on queries

Where Node.js fits

Six jobs Node.js does well

Pick it when speed, real-time and a shared language matter.

  • Real-time features

    Live chat, notifications, dashboards, collaboration and tracking, pushed to users as things happen.

    Realtime
  • APIs and integrations

    REST and GraphQL APIs that connect your apps, partners and third-party tools.

    APIs
  • Back ends for web and mobile

    One service layer for your website, your apps and your admin tools.

    Back end
  • Background jobs and queues

    Emails, reports, imports and clean-ups that run behind the scenes without slowing users down.

    Jobs
  • AI-powered back ends

    Streaming answers from language models, document search and automation steps, wired into your product.

    AI
  • Serverless and microservices

    Small, focused services that scale on their own and cost little when quiet.

    Cloud

How we build

Lean, typed and observable

We choose boring, proven tools and keep services small enough to understand.

Every service ships with tests, logs and alerts, so it can be run by your team, not only by ours.

  1. TypeScript first

    Typed code catches mistakes early and makes a large codebase easier to change.

  2. Right framework for the job

    Express or Fastify for lean services, NestJS for larger structured systems.

  3. Your choice of database

    PostgreSQL, MySQL, MongoDB and Redis, with migrations and clear data models.

  4. Secure by default

    Input validation, safe authentication, secrets management and dependency scanning.

  5. Tuned for load

    Caching, connection pooling and queue workers keep response times steady.

  6. Observable

    Structured logs, metrics and alerts so problems show up before customers notice.

What we measure

A back end is judged by what users feel

We set these targets early and report on them after launch.

  • Response time

    The speed users feel, tracked at the 95th percentile, not just the average.

  • Error rate

    Share of requests that fail, with alerts when it rises.

  • Throughput

    Requests handled per second before the system slows down.

  • Cost per request

    Compute and database spend, so growth does not surprise the budget.

How we work

From workload to monitored service

Five steps that avoid surprises in production.

  1. Map the workload

    Understand who calls the service, how often and what must happen in real time and what can wait.

    Discovery
  2. Design the contract

    Agree the API shape, data model and error handling before writing code.

    Design
  3. Build in small slices

    Ship working endpoints early, each with tests and documentation.

    Build
  4. Test under load

    Load and failure tests show where the service bends before real users find out.

    Prove
  5. Launch and watch

    Deploy with monitoring, alerts and a rollback plan, then tune from real traffic.

    Operate

Built to be trusted

What we verify before every release

The details that decide whether a service stays up.

  • Typed and testedTypeScript, unit and integration tests run on every change.
  • Safe error handlingFailures are caught, logged and retried where it makes sense, never swallowed.
  • Graceful shutdownDeployments finish in-flight requests, so users never see a dropped connection.
  • Rate limits and validationEvery input is checked and abuse is throttled.
  • Dependency hygienePackages are pinned, scanned and updated on a schedule.
  • DocumentedClear API docs, a README and run books for your team.

FAQs

Node.js questions, answered

Node.js runs JavaScript on the server. It suits APIs, real-time features, streaming and services that spend most of their time waiting on databases or other services. For heavy number crunching we may pair it with another language.

There is no single winner. Node.js shines for real-time features and for teams that want one language across front end and back end. PHP and Python are excellent for other cases. We recommend based on your team, workload and existing systems.

Yes, by default. Types catch many bugs before release and make the code easier for new developers to understand. We can work in plain JavaScript if your codebase already uses it.

Express and Fastify for lean services, NestJS for larger structured applications, plus tools such as Prisma, TypeORM and Socket.IO. We pick the lightest option that fits.

Yes, when it is built well. We use caching, queues and horizontal scaling, and we load test before launch so the limits are known rather than guessed.

Yes. We connect language models, stream their answers to the browser, add document search and build approval steps for actions, with cost limits and logging.

We validate input, manage secrets safely, use proven authentication libraries, scan dependencies and follow the OWASP guidance. Security checks are part of the build pipeline.

Yes. We start with an audit of dependencies, tests, security and performance, then fix the highest-risk areas first while the service keeps running.

A focused API or service often takes four to eight weeks for a first release. Larger platforms are delivered in phases over several months.

Yes. We monitor the service, apply security updates and tune performance under a support plan with agreed response times.

Ready for a back end that keeps up?

Tell us what the service must do and how many people will use it. We will suggest an architecture, a plan and an honest estimate.

Free initial consultation • No obligation • NDA available
Chat with us

Choose who you'd like to talk to

Avik Mallick
Avik MallickCo-Founder & Partner
Sudipta Lahiri
Sudipta LahiriCo-Founder & Partner