E-commerce Website Development for Physical Goods

I'm looking for an experienced web developer to create an e-commerce website for selling physical products. The site should be user-friendly, secure, and optimized for mobile devices.

Key Requirements:
- Integration of payment gateways: PayPal, Stripe, and Credit Card
- Implementation of various shipping options: Standard shipping, Express shipping, and Free shipping
- Knowledge of SEO best practices for e-commerce
- Experience with responsive design

Ideal Skills:
- Proficiency in web development languages (HTML, CSS, JavaScript)
- Familiarity with e-commerce platforms (Shopify, WooCommerce, Magento)
- Previous experience in developing e-commerce sites
- Excellent problem-solving skills and attention to detail

Please provide examples of previous e-commerce websites you have developed in your proposal.