E-commerce Website Development

I need an experienced web developer to create an e-commerce website.

Key Requirements:
- E-commerce functionality
- Custom design and layout
- User-friendly interface
- Mobile responsiveness
- SEO optimization

Ideal Skills:
- Proficiency in Shopify, WooCommerce, or Magento
- Strong design skills
- Experience with payment gateway integration
- Knowledge of SEO best practices

Please provide portfolio and relevant experience