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$
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I will develop full stack web app using react js next js node js express js
Abdul Mannan
Level 1
5.0
5.0
About this gig
Hi! I'm a Senior Full Stack Web Developer with 9+ years of experience building, fixing, and scaling modern websites, web applications, and SaaS platforms for startups and enterprises.
I specialize in delivering fast, secure, responsive, and production-ready solutions using React.js, Next.js, Node.js, Nest.js, PHP, Laravel, Django, and modern cloud technologies.
What I can do for you:
- Custom website development: business websites, landing pages, e-commerce stores, dashboards, and SaaS platforms
- Frontend development: React.js, Next.js, TypeScript, HTML, Tailwind CSS, Bootstrap
- Backend development: Node.js, Express.js, Nest.js, PHP, Laravel, Django
- API integration and database design using PostgreSQL, MongoDB, and MySQL
- E-commerce development with Stripe and PayPal integration
- AI-powered features including chatbots, automation, and smart workflows
- Web app optimization, bug fixing, and performance tuning
- Deployment on AWS, Docker, and CI/CD pipelines
From simple websites to full SaaS platforms, I can help turn your idea into a high-performance, production-ready application.
Message me today and lets discuss your project
Get to know Abdul Mannan
Abdul Mannan
Expert Agentic AI, Langchain, GenAI, N8N, RAG, LLM, Full Stack Engineer
Level 1
- FromPakistan
- Member sinceApr 2019
- Avg. response time1 hour
- Last deliveryabout 59 minutes
Languages
Spanish, English, Chinese, Japanese, German, French, Dutch, Italian, Swedish, Arabic, Norwegian, Danish
I am a Senior Software Engineer with 9+ years of experience in Web App Development and cutting-edge AI/LLM Integrations.
My expertise covers full stack AI development where I design, build, and deploy scalable applications while integrating advanced AI features into existing platforms.
I specialize in custom chatbots (RAG & Agentic RAGs using LangChain, LangGraph, LangFlow, LangSmith) and workflow automations with tools like n8n, Make.com, and Monday.com to simplify and optimize business processes.
My Portfolio
Other Software Development Services I Offer
FAQ
Q1. What technologies do you use for website development?
I mainly use React.js, Next.js, Node.js, Nest.js, PHP LARAVEL, PostgreSQL, MongoDB, and Redis for full stack development. Depending on project needs, I can also work with TypeScript, Docker, and AWS for deployment.
Q2. Can you build both frontend and backend for my website?
Absolutely. As a full stack developer, I handle everything — from frontend UI/UX design and API integration to backend logic, authentication, and database setup.
Q3. Do you provide custom design or use templates?
I create fully custom designs tailored to your brand and requirements. However, if you prefer using a UI kit or template, I can adapt it and optimize it for performance.
Q4. Will my website be mobile-friendly and SEO-optimized?
Yes — all websites are 100% responsive and SEO-ready, ensuring they look great on all devices and rank better on Google.
Q5. Do you offer maintenance or post-launch support?
Yes, I provide free support after delivery for minor fixes and adjustments. For ongoing updates, we can set up a maintenance package at a discounted rate.
Q6. How do you ensure security and scalability?
I follow industry best practices — secure authentication (JWT/OAuth), input validation, API rate limiting, and clean, modular code to ensure your app scales safely as traffic grows.
Q7. Can we discuss the project before ordering?
Definitely! Please message me and have call before placing an order so we can align on your goals, requirements, and delivery timeline. This helps ensure smooth collaboration and perfect results.
Reviews
2 reviews for this Gig
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Rating Breakdown
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- Quality of delivery
- Value of delivery
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D daviskyle1
United States
Really satisfied with the delivery. Abdul added a clean multi-provider AI integration layer for OpenAI, Claude, Perplexity, Gemini, and Grok, with reusable backend services, .env API key setup, provider switching, error handling, and fallback logic. The demo features for AI product descriptions, smart...
Up to $50
Price
7 days
Duration
Helpful?D daviskyle1
United States
Excellent work! Abdul delivered a clean AI-powered standalone e-commerce plugin/app with a React.js frontend, Node.js/Express.js backend, MongoDB structure, REST APIs, product listing, cart, checkout, and admin/product management. He also added OpenAI API and Claude API integration placeholders for AI...
Up to $50
Price
4 days
Duration
Helpful?
Reviews
2 reviews for this Gig
| (2) | ||
| (0) | ||
| (0) | ||
| (0) | ||
| (0) |
Rating Breakdown
- Seller communication level
- Quality of delivery
- Value of delivery
Sort By
Most relevant
D daviskyle1
United States
Really satisfied with the delivery. Abdul added a clean multi-provider AI integration layer for OpenAI, Claude, Perplexity, Gemini, and Grok, with reusable backend services, .env API key setup, provider switching, error handling, and fallback logic. The demo features for AI product descriptions, smart...
Up to $50
Price
7 days
Duration
Helpful?D daviskyle1
United States
Excellent work! Abdul delivered a clean AI-powered standalone e-commerce plugin/app with a React.js frontend, Node.js/Express.js backend, MongoDB structure, REST APIs, product listing, cart, checkout, and admin/product management. He also added OpenAI API and Claude API integration placeholders for AI...
Up to $50
Price
4 days
Duration
Helpful?
