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Osama Khattak
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MERN stack development services

Complete web apps on MongoDB, Express, React and Node.js, from the data model to the deployed product.

Discuss your projectSee related work
Staffvertex, built with mern stack development
  • MongoDB
  • Express
  • React
  • Node.js

Why work with me on MERN stack development

  • MongoDB
  • Express
  • React
  • Node.js
  • Next.js
  • Tailwind CSS

MERN is MongoDB, Express, React and Node.js: one language, JavaScript, from the database to the button your customer clicks. It is a strong fit for SaaS products, dashboards, marketplaces and internal tools that need to move quickly.

I build the whole thing: the data model, the API, the interface and the deployment. You deal with one developer who understands every layer, so nothing gets lost between a front-end team and a back-end team.

What you get

  1. 01

    APIs with Express and Node.js

    Structured routes, validation, authentication and error handling that your interface and any future mobile app can rely on.

  2. 02

    MongoDB data modeling

    Collections and schemas designed around how your app actually reads and writes data, with indexes where they matter.

  3. 03

    React interfaces

    Reusable components, responsive layouts and state that stays predictable as the feature list grows.

  4. 04

    Accounts and roles

    Sign-up, login and role-based access for admins, staff and customers.

  5. 05

    Deployment

    Production builds, environment configuration and hosting, so releasing a change is routine rather than risky.

  6. 06

    Search-ready public pages

    Server rendering with Next.js where it counts, clean URLs, metadata and structured data, so marketing pages can rank.

Proof

Where I've done this before

NexIntern runs its Express and Node.js API on MySQL: it started on MongoDB, and moved at my supervisor's request.

How it runs

  1. 01 Plan

    We agree on the goal, scope, timeline and cost in writing before work starts.

  2. 02 Design

    Wireframes or Figma designs for the key screens, so you approve the look before it is built.

  3. 03 Build

    Development in small milestones, with progress shared over Zoom, Trello and GitHub.

  4. 04 Launch

    Deployment, speed and SEO checks, then support for fixes and updates after handover.

Common questions

What is the MERN stack?

MongoDB for the database, Express and Node.js for the server and API, and React for the interface. JavaScript runs across the whole app, which keeps development fast and makes the codebase easier to hand over.

Should my app use MERN or Next.js?

For a dashboard or tool behind a login, a React front end on an Express API works well. When public pages need to rank on Google, I build them with Next.js so they render on the server. Both sit on the same MongoDB and Node.js foundation.

Can you take over an existing MERN codebase?

Yes. I start by running it locally and reading the code, fix whatever is blocking you, then move on to new features.

How long does a MERN project take?

A focused first version usually takes two to six weeks. Larger products are split into milestones so you see working software at each step.

Further reading

All articles →
Hiring · Oct 2026

How to Hire a MERN Stack Developer: A Practical Checklist

Most hiring mistakes with developers happen before the first interview: the wrong stack, the wrong kind of hire, a portfolio nobody checked. Here's the checklist I'd use, written from the developer's side of the table.Read article SaaS development · Oct 2026

How to Build a Time Tracking App Like Hubstaff: Lessons from Staffvertex

A timer looks like the easy part. It isn't. Here's what building and maintaining Staffvertex taught me about the parts of a time tracker that people actually trust.Read article

Planning a web app on the MERN stack?

Freelance projects and full-time remote roles both welcome.

Let's work together