Express.js development · REST APIs and Node.js back ends

Express.js Development: lean, reliable APIs on Node.js

We build and maintain Express.js APIs and back ends: clear routes, solid authentication, validated input and tests, documented so your team or app developers can use them with confidence.

Get a free quote What we do
ExpressAPIs and Node.js back ends
Freeconsultation on Google Meet
Fixedproposal, agreed before we start
200+projects delivered

Why Express?

The most widely used Node.js web framework: minimal, flexible and well understood, so your API stays easy to maintain.

Light and fast
Middleware for every need
Clear, simple routing
Works with TypeScript
Any database or service
Widely known by developers
Security middleware
Easy to test
Express 5 for new projects

What we do

From a new API to tidying up one that grew without a plan.

REST APIs

APIs for web and mobile apps, with versioning, pagination and documentation your developers can follow.

Authentication and roles

Login, tokens, password reset, roles and permissions done properly.

Database integration

MySQL, PostgreSQL or MongoDB with clean models, migrations and backups in mind.

Real-time features

Live updates and notifications with Socket.IO alongside your API.

Upgrades and clean-up

Express 4 apps moved to Express 5, old dependencies replaced, security issues fixed.

Testing and documentation

Automated API tests and OpenAPI documentation for existing or new endpoints.

Not sure which back end fits?

We work with Node.js, Express, Python, PHP, Laravel and Java, and recommend the right fit in your free consultation. See all our software development services.

See software development

Need ongoing help with your app?

Updates, fixes and new features by the hour or on a monthly plan, from ₹500 an hour + GST.

See support plans

Your accounts. Your project runs on hosting or a server in your name. We help you choose it, set it up and deploy for you. We don't sell hosting.

Get a free quote

Tell us what you need. We'll set up a free call and send a written proposal.

Get a free quote

Quote for Software Development

  • Free consultation call
  • Written proposal
  • No obligation

Email or phone number: one is enough.

When would you like to start? (optional)

We usually reply within a few hours on working days. Your details are used only to answer your enquiry. Privacy policy

Prefer WhatsApp? Chat with us

How it works

  1. Discovery Your goals, users and any existing code.
  2. Proposal Scope, milestones, timeline and a fixed price.
  3. Design Screens and flows for your approval.
  4. Build and demo Built in sprints, tested and shown as we go.
  5. Launch and support Go live, then updates and help after.

Why Altechmind

Experienced team

200+ projects across front end and back end, so your Express work fits with everything around it.

Tested and secure

Code reviews, automated tests and security checks before every release.

Help after launch

Upgrades, fixes and new features when you need them, by the hour or on a monthly plan.

Trusted by businesses and institutions

Trusted by businesses and institutions

Testimonials

What Our Clients Say

5.0average client rating

Best Website developer in India for Engineering Journal. Provided exceptional support and service even during the pandemic situation. Their technical expertise and professional approach to web design delivered results at an incredibly affordable cost.

Mr. Michael Thomas Rex FSMENEC

The website quality developed by Altechmind Technology is very impressive, specially in field of OJS research journals. In account of this quality, we recently got Embase Elsevier indexing. I really appreciate the team.
Kind regards

Dr. ParveenPresident · Scholar Time Welfare Society

We had a very pleasant experience with Altechmind. The dedication towards project issues is really commendable. Their expertise in OJS-PKP is very appreciable.

Dr. Davis LazarusGRDS Publishing

Altechmind Technologies is the best IT service provider with top-notch quality support. The entire staff is highly qualified and incredibly supportive, ensuring a seamless experience for their customers.

Anil PawarDirector · SENNOS Biotech

One stop solution for all Technical work, Website designing, I have taken services from Altechmind Technologies, and they are handed over the project assigned, much ahead of delivery date. Very helpful and humble.

Prof Dr Arun KumarEditor in Chief · Asian Journal of Medical Sciences

I was stuck badly in serious website issue, and couldn't find any solution. Their team was working day and night for my website issue and at last solved the issue in just couple of days... I strongly recommend this IT firm to every professional business owners...

Mr. Rushi DaveFounder · Koryfi Group of Media

My OJS system has few errors on emails and other plugins. I contacted Mr. Prasanth kumar, he solved all the issues earlier than a given time. Now my OJS is well working.

Ch. Rami ReddyITEECS

Questions

Why use Express for an API?

It's small, fast and flexible, and almost every Node.js developer knows it. For larger projects that need more structure we may suggest NestJS, which can run on Express.

Do you use Express 4 or Express 5?

Express 5 for new projects. Existing Express 4 apps keep working; we upgrade them when it makes sense, with tests to catch anything that changes.

Can you document our API?

Yes. We write OpenAPI (Swagger) documentation so app developers and partners can see every endpoint, its inputs and its responses.

How long does it take?

A simple REST API typically takes 2 to 3 weeks, a medium-complexity API with authentication and several resources 4 to 6 weeks, and complex systems 8 to 12 weeks or more. Your proposal has the timeline.

How much does it cost?

Every project gets a written proposal after a free call: scope, milestones and one fixed price, plus 18% GST. Payment is usually 40% to start and 60% on delivery; larger projects are split into milestones.

Do you provide hosting?

No. We don't sell hosting. Your app runs on hosting or a server in your name; we help you choose it, set it up and deploy for you.

Do you support the app after launch?

Yes: Express upgrades, bug fixes, security updates and new features, by the hour or on a monthly plan.

Ready to build your API?

Tell us what you need. We'll set up a free call and send a clear proposal.

Get a free quote Book a free call WhatsApp us