E-commerce Website Development

I need a skilled developer to create an e-commerce website for selling physical products. The site should include a shopping cart feature.

Key Requirements:
- User-friendly interface
- Secure payment gateway integration
- Mobile responsiveness
- SEO-friendly design
- Shopping cart functionality

Ideal Skills and Experience:
- Proven experience in e-commerce website development
- Strong understanding of UX/UI design
- Knowledge of SEO best practices
- Familiarity with secure payment systems

Please provide a portfolio showcasing similar projects.