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MERN and Next.js application development

Full-stack web applications with React, Node and MongoDB — authentication, dashboards, data-driven interfaces and everything behind them. This is where a project moves beyond static pages into real application logic: user accounts, stored data, and a frontend that talks to a backend API.

Problems this service solves

  • A business idea that needs a working web application, not a set of static pages

  • Manual processes that could be replaced by a self-serve web interface

  • The need for user accounts, roles or saved data behind a login

  • Fragmented tools or spreadsheets that a single purpose-built application could replace

Who this is for

A startup building a product around a web application, or an existing business that needs custom application logic beyond what a template or off-the-shelf tool provides — not a replacement for an established engineering team's own in-house platform.

What’s included

  • A React and Next.js frontend, using server and client components deliberately

  • A Node.js and Express backend with a defined REST API

  • A MongoDB Atlas database with Mongoose schema validation

  • Authentication with bcrypt-hashed passwords and a JWT stored in an HTTP-only cookie

  • Server-side validation on every form and API endpoint

Development approach

Follows the same eight-step process as every project, with planning and development carrying more weight here than on a marketing site — the data model, API and auth flow need to be scoped before the interface can be finished.

See the full process

Technologies used

  • Next.js
  • React
  • TypeScript
  • Node.js
  • Express.js
  • MongoDB Atlas
  • Mongoose
  • JWT

Expected deliverables

  • A fully responsive, deployed web application

  • Source code repository access for both frontend and backend

  • A documented REST API

  • Working authentication and the agreed application features

Estimated timeline

There’s no fixed timeline for this service — it depends on scope, how many integrations or third-party pieces are involved, and how quickly feedback comes back during review. You’ll get a project-specific timeline as part of your quote, not a generic estimate.

Get a project-specific estimate

Related projects

Frequently asked questions

Ready to talk about your project?

Tell us what you’re building and we’ll scope mern and next.js application development around what your project actually needs.

Request a Quote