E-commerce Website Development with Payment Gateway Integration

I am looking for an experienced full-stack web developer to build a professional, responsive e-commerce website with secure payment gateway integration.
Required Features
Modern, mobile-friendly e-commerce website design
Product listing, categories, search, and product details
Shopping cart and smooth checkout process
Payment gateway integration (Razorpay, Cashfree, PayU, or a suitable alternative)
Secure online payments and payment status verification
Customer registration, login, and order history
Admin dashboard to manage products, prices, inventory, and orders
Order confirmation emails and order status updates
Basic SEO, website security, and performance optimization
Website deployment and complete source code handover
Developer Requirements
Proven experience in e-commerce website development
Previous experience integrating payment gateways
Strong knowledge of frontend, backend, and database development
Ability to deliver clean, secure, and maintainable code
Please Include in Your Proposal
Examples of similar e-commerce websites you have developed
Your recommended technology stack and payment gateway
Estimated total cost and delivery timeline
Details of post-launch support and maintenance
I am looking for a reliable developer who can deliver a high-quality, fully functional e-commerce website from development to deployment.