You will get React performance audit & speed fix for your slow website
Project details
As a Full-Stack Developer specializing in the MERN and MEAN stacks, I build dynamic, scalable, and high-performance web applications tailored to each client’s business needs. My experience with React JS, Angular, Node.js, and MongoDB allows me to create both robust back-ends and seamless, responsive front-ends that deliver exceptional user experiences.
What sets this project apart is the focus on clean architecture, optimized performance, and real-time functionality. I have engineered complex marketplace platforms with features like dynamic dashboards, live data visualization, caching with Redis, and API integrations—ensuring smooth scalability and lightning-fast performance.
Whether you need a custom web app, a business portal, or a responsive website, I ensure secure code, modern design, and a future-ready tech stack. My approach combines technical precision with business insight to help you achieve measurable growth and long-term success.
What sets this project apart is the focus on clean architecture, optimized performance, and real-time functionality. I have engineered complex marketplace platforms with features like dynamic dashboards, live data visualization, caching with Redis, and API integrations—ensuring smooth scalability and lightning-fast performance.
Whether you need a custom web app, a business portal, or a responsive website, I ensure secure code, modern design, and a future-ready tech stack. My approach combines technical precision with business insight to help you achieve measurable growth and long-term success.
Programming Languages
HTML & CSS, JavaScript, TypeScriptCoding Expertise
Cross Browser & Device Compatibility, Performance Optimization, DesignWhat's included
| Service Tiers |
Starter
$100
|
Standard
$400
|
Advanced
$800
|
|---|---|---|---|
| Delivery Time | 3 days | 9 days | 20 days |
Number of Revisions | Unlimited | Unlimited | Unlimited |
Number of Pages | 1 | 5 | 8 |
Design Customization | |||
Content Upload | |||
Responsive Design | |||
Source Code |
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+$100Frequently asked questions
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MZ
Muhammad Z.
Mar 11, 2026
Landing Page Developer Needed (Test Task )
Sami did an excellent job on our landing page. He delivered exactly what we requested clean design, fully responsive layout, and attention to detail was impressive. Communication was smooth and the project was delivered on time. Highly recommend for any frontend work
AR
Ahmad R.
Feb 18, 2026
React.js Developer Needed to Fix Performance Issue (Slow Page Loading)
Sami is a highly skilled React developer. He quickly understood the problem, communicated clearly, and fixed the performance issue efficiently. The project was delivered on time and met all expectations. I would definitely recommend him for future projects.
About Sami Ur Rehman
Full-Stack AI Engineer | MERN Next js | OpenAI LLM | SaaS MVPs
100%
Job Success
Lahore, Pakistan - 4:00 am local time
I focus on production-grade code that holds up when real users hit it not prototypes that break the moment traffic shows up.
What I build for clients:
✓ B2B SaaS platforms multi-tenant, role-based access, subscriptions, admin dashboards
✓ AI-powered web apps OpenAI / GPT-4 integrations, AI chatbots, smart automation
✓ SaaS MVPs for founders from Figma to deployed product, ready for paying users
✓ Performance fixes SSR/CSR, lazy loading, caching, sub-200ms response times
✓ Custom dashboards & internal tools admin panels, analytics, real-time data
✓ APIs & integrations REST, GraphQL, Stripe, Twilio, third-party services
My core stack:
→ Frontend: React, Next.js, TypeScript, Tailwind CSS
→ Backend: Node.js, Express, NestJS, Python (FastAPI, Django)
→ Databases: PostgreSQL, MongoDB, MySQL, Redis
→ AI: LLM,OpenAI API, GPT-4, AI chatbot development, prompt engineering
→ Cloud & DevOps: AWS, Firebase, Docker, CI/CD pipelines
→ Payments: Stripe, PayPal, Apple Pay, Google Pay
Recent work:
→ SeeBiz Global B2B wholesale marketplace. Built vendor onboarding, real-time product search across thousands of SKUs, and admin dashboards handling complex catalog logic.
→ krub.ai B2B networking + group-buying platform. Shipped the web app and native iOS / Android with synced real-time data.
→ AI Agent system OpenAI-powered automation for lead handling and business workflows.
Why clients hire me:
→ 5+ years shipping real products not demos, not tutorials
→ Response time under 4 hours during business hours
→ Clean code your next developer can actually read and extend
→ I mentor junior engineers at my full-time role, so I explain my decisions clearly
→ 100% Job Success on Upwork, ID-verified, 30+ hrs/week available
If you're building a SaaS platform, an AI-integrated product, or a B2B tool and you want someone who's already shipped at production scale let's talk.
🎁 Free 15-minute consultation book a call and I'll review your project idea, flag the technical risks before they cost you money, and give you an honest scope estimate (no obligation, no sales pitch).
Drop a message describing what you're building and I'll reply within a few hours to schedule your free call.
Sami
Steps for completing your project
After purchasing the project, send requirements so Sami Ur Rehman can start the project.
Delivery time starts when Sami Ur Rehman receives requirements from you.
Sami Ur Rehman works on your project following the steps below.
Revisions may occur after the delivery date.
Requirement Gathering
Discuss project goals, design preferences, and required features.