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Full-Stack EngineerSpecialized in AI-Powered ToolsAvailable Q3 2026

I build web apps that feel fast and scale far.

I'm Mudassar — a senior engineer who helps product teams across Germany, the UK, and the US turn ambitious ideas into production interfaces that load quickly, convert better, and hold up as they grow.

20+ products shipped for teams in Germany, the UK & the US

3+
Years shipping production apps
20+
Products delivered
3
Countries served
Q3 2026
Currently booking

Trusted by teams & products across Germany, the UK & the US

  • AAryze Tech
  • TTech9et
  • MMaxenius Solution
  • OOptimum Tech
  • BBenders Agency
  • MMyGovTools
01 — What I do

I don't sell hours. I deliver outcomes.

Every engagement is scoped around a business result — faster load times, higher conversion, less maintenance, more shipped. Here's where I create the most value.

01

Product web apps that scale

Dashboards, internal tools, and SaaS interfaces that stay fast and maintainable as your data, users, and team grow.

  • React & Next.js architecture
  • Reusable component systems
  • Role-based access & auth flows
02

Marketing sites that convert

High-performance, SEO-ready websites engineered to load instantly and turn visitors into qualified leads.

  • Core Web Vitals tuned
  • SEO & structured data
  • Conversion-focused UX
03

Full-stack feature delivery

End-to-end features — from REST APIs and database modeling to the polished UI — shipped without hand-offs.

  • Node.js / Nest.js APIs
  • MongoDB & PostgreSQL
  • Real-time data sync
04

Rescue & performance audits

Inherited a slow or fragile codebase? I diagnose the bottlenecks and ship measurable improvements fast.

  • Performance profiling
  • Refactoring legacy React
  • Bug & stability triage
02 — Selected work

Real problems. Measured results.

A look at how I think — not just what I ship. Each project below traces the problem, the approach, and the outcome.

Healthcare E-commerce

90+Lighthouse performance

My Doctor Shop

Problem

Patients needed a trustworthy, simple way to find and buy medical products online — without the friction of a clunky storefront.

Approach

Designed a clean, conversion-focused storefront on Next.js with a streamlined catalogue, fast search, and a checkout built to remove hesitation.

Result

A polished, mobile-first shopping experience with near-instant navigation and a UI that builds buyer confidence at every step.

Next.jsReactTailwind CSSWooCommerce
Visit live site

Operations Web App

⌀ secsTo log an item via scan

Inventory Management System

Problem

A team was losing hours to manual stock entry and had no real-time visibility into what was actually on the shelves.

Approach

Built a barcode-driven inventory web app in React with instant scanning, live stock counts, and an interface operators could learn in minutes.

Result

Manual entry replaced by scan-to-update workflows — fewer errors, faster counts, and stock data the team can finally trust.

ReactBarcode APIWeb AppState Mgmt
Visit live site

Corporate Brand Site

InstantPage navigation

Benders Agency

Problem

A US agency needed a site that matched the quality of their work and loaded fast enough to keep prospects engaged.

Approach

Delivered a modern, responsive Next.js site with a strong brand presentation, refined motion, and performance baked in from the start.

Result

A premium first impression that loads instantly and presents the agency as the high-end studio they are.

Next.jsUI/UXMarketingAnimation
Visit live site

Public Utility Platform

A11yAccessibility-first build

MyGovTools

Problem

A public-services tools platform had to be usable by everyone — with clear information architecture and accessibility built in.

Approach

Engineered an accessible, well-structured React platform prioritising clarity, keyboard navigation, and a logical content hierarchy.

Result

A dependable, inclusive tools platform that citizens of any ability can navigate with confidence.

ReactAccessibilityPublic SectorTools
Visit live site

Also delivered

ERP System — Multi-Site Inventory & POS

POS, inventory, and user-management modules with real-time data sync across multiple branches.

ReactNode.jsMongoDB

HRMS — HR Management System

Full-stack employee platform with JWT auth, dashboards, CRUD, and role-based access control.

ReactNode.jsJWT

Valorant Agent Hub

Interactive platform serving structured agent data with API integration and a responsive UI.

ReactAPIInteractive
03 — How we work

A clear path from first call to launch.

No black boxes, no surprises. You'll always know exactly what's happening and what comes next.

01

Discovery

We start with a call to understand your goals, users, and constraints — so we build the right thing, not just a thing.

02

Strategy

I map scope, timeline, and the tech approach into a clear plan you sign off on before a line of code is written.

03

Design

Interfaces and flows are designed for clarity and conversion — reviewed together before development begins.

04

Development

I build in focused increments with regular demos, so you always see progress and can steer along the way.

05

Launch

Tested, optimised, and deployed. I handle the go-live details so the rollout is smooth and stress-free.

06

Optimization

After launch I monitor, refine, and improve — turning real usage data into a product that keeps getting better.

04 — About
Portrait of Mudassar Zafar, Senior React & Next.js engineer

Mudassar Zafar

Senior React & Next.js Engineer

Engineering is a craft.
I treat it like one.

I'm Mudassar Zafar, a senior React & Next.js engineer with 3+ years building production web applications. I specialise in modern JavaScript — React, Next.js, and clean component architecture — and I'm equally comfortable supporting the backend with Node.js, Nest.js, and MongoDB.

I care about the details most people never notice but everyone feels: load times, smooth interactions, code that the next developer can actually read. That's what separates a site that works from a product that lasts.

I hold a BS in Computer Science (GCUF, 2024) and work daily with modern AI-assisted tooling to ship higher-quality work, faster.

Frontend
React.jsNext.jsTypeScriptJavaScript (ES6+)ReduxVite
Styling & UI
Tailwind CSSMaterial UIChakra UIFramer Motion
Backend
Node.jsNest.jsExpressREST APIs
Data
MongoDBPostgreSQLSQL
Tools & AI
GitFigmaPostmanCursorClaude Code
Experience

Full Stack Developer

Apr 2024 — Present

Aryze Tech · Germany

Real-time, performance-focused React apps; interactive dashboards and internal tools; APIs with Nest.js, Node & MongoDB.

Full Stack Developer

Oct 2023 — Apr 2024

Tech9et · United Kingdom

Product-level solutions in React & Next.js, optimised for performance and SEO with distributed teams.

React / Next.js Developer

Jan 2023 — Oct 2023

Maxenius Solution · Pakistan

Complex frontends, custom Node/Express APIs, auth flows and state management in a full MERN environment.

Full Stack Developer Intern

Aug 2022 — Dec 2022

Optimum Tech · Pakistan

Built responsive React UI components and integrated REST APIs while mastering frontend–backend connectivity.

05 — Working together

The reason teams keep me on speed dial.

Talent gets you in the door. How it feels to actually work with someone is what earns the next project — and the referral after that.

Read recommendations on LinkedIn

Clear communication

Regular demos and honest updates. You’re never left wondering where your project stands.

Ownership, not tickets

I take responsibility for outcomes — flagging risks early and solving problems, not just closing tasks.

Built to last

Clean, documented, modular code your team can extend long after the engagement ends.

On time, in scope

Realistic timelines agreed up front, then met. No moving goalposts, no surprise invoices.

06 — FAQ

Questions, answered before you ask.

Still unsure about something? A 20-minute call will clear it up faster than any page.

Ask me directly
07 — Let's build

Have a project worth doing right?

Tell me what you're building. I'll reply within one business day with honest thoughts on scope, timeline, and whether I'm the right person for it — no pressure, no sales pitch.

Prefer to talk first?

Book a free 20-minute discovery call and we'll figure out fit together.

Currently booking — Q3 2026

Typical reply time: under 1 business day.

No spam, ever. Your details go straight to my inbox.