Basic Business Promotion Website Development

I'm seeking a skilled web developer to create a basic website for promoting my business. The site will primarily feature descriptions of our services and showcases of our products.

Key requirements:
- The site must include a secure and efficient payment gateway
- The design should be user-friendly and attractive to potential customers
- The website should be optimized for SEO to enhance our online visibility
- Experience in e-commerce site development is a plus

Please provide examples of similar projects you have completed in your bid.