E-commerce Website Development -- 2

I'm looking for a skilled web developer to build a new e-commerce website.

Requirements:
- User-friendly interface
- Secure payment gateway integration
- Mobile responsive design
- SEO optimization
- Product categorization and search functionality

Ideal Skills and Experience:
- Proven experience in developing e-commerce websites
- Expertise in payment gateway integration
- Strong knowledge of SEO and UI/UX design principles
- Familiarity with platforms like Shopify, WooCommerce, or Magento

Please provide a portfolio and estimated timeline.