You will get Scalable React & Next.js Development — Clean Architecture, Fast Performance
Project details
I help businesses and startups turn ideas into fast, scalable web applications using React and Next.js.
Rather than just writing code that works today, I focus on architecture that holds up as your product grows — clean component structure, proper state management, and performance that stays solid even as features and data scale up.
Recent example: migrated a production platform to Next.js 14, cutting JavaScript bundle size by 72% and raising performance scores from 65 to 98 — while the app kept handling over a million operations without issues.
Whether you need a landing page, a full dashboard, or a complex multi-page app with API integrations, I bring the same standard: readable code, thoughtful architecture, and a product that's easy to maintain and extend later — not a rushed build that needs to be rewritten in six months.
I communicate clearly, deliver on time, and I'm happy to jump on a call to align on scope before we start.
Rather than just writing code that works today, I focus on architecture that holds up as your product grows — clean component structure, proper state management, and performance that stays solid even as features and data scale up.
Recent example: migrated a production platform to Next.js 14, cutting JavaScript bundle size by 72% and raising performance scores from 65 to 98 — while the app kept handling over a million operations without issues.
Whether you need a landing page, a full dashboard, or a complex multi-page app with API integrations, I bring the same standard: readable code, thoughtful architecture, and a product that's easy to maintain and extend later — not a rushed build that needs to be rewritten in six months.
I communicate clearly, deliver on time, and I'm happy to jump on a call to align on scope before we start.
Programming Languages
HTML & CSS, JavaScript, TypeScriptCoding Expertise
Cross Browser & Device Compatibility, PSD to HTML, Performance OptimizationWhat's included
| Service Tiers |
Starter
$50
|
Standard
$250
|
Advanced
$600
|
|---|---|---|---|
| Delivery Time | 2 days | 7 days | 21 days |
Number of Revisions | 2 | 3 | 5 |
Number of Pages | 2 | 7 | |
Design Customization | |||
Content Upload | |||
Responsive Design | |||
Source Code |
Frequently asked questions
About kareem
Senior React & Next.js Developer | TypeScript, SaaS & Dashboards
Cairo, Egypt - 5:51 am local time
I'm a Senior Frontend Engineer with 6+ years of experience turning complex, data-heavy frontends into fast, scalable, production-ready products — across SaaS, iPaaS, ERP, and AI platforms.
Recent results I've delivered:
→ Led a Next.js Pages Router → App Router migration that cut shared JS bundle size by 72% and shipped with zero-error production builds
→ Took a real-estate management system's performance score from 65 to 98 (Lighthouse), eliminating all client-reported issues
→ Architected a visual no-code workflow builder connecting CRMs, ERPs, accounting systems, and eCommerce platforms — now handling 1.4M+ executions
→ Built a full ERP system from scratch (React, TypeScript, Tailwind) covering operations, inventory, supply chain, and financials
What I'm good at:
* Complex, interactive UIs: drag-and-drop editors, dynamic form builders, workflow automation tools (React, Zustand, React Query)
* Performance optimization: Core Web Vitals, code splitting, lazy loading, bundle size reduction
* Scalable component architecture that stays maintainable as the codebase and team grow
* Owning features end-to-end — from architecture decisions to production delivery
Core stack: React, Next.js (App Router), TypeScript, Zustand, React Query, GraphQL, Tailwind CSS.
I'm currently available and taking on new projects.
If you're building a complex frontend — or have an existing one that needs performance, architecture, or scalability improvements — let's talk about what you need.
Steps for completing your project
After purchasing the project, send requirements so kareem can start the project.
Delivery time starts when kareem receives requirements from you.
kareem works on your project following the steps below.
Revisions may occur after the delivery date.
Review the delivered work
You review the delivered work; I handle revisions based on your feedback.