Retail Website Development for Chemicals Trading

I'm looking for an experienced web developer to create a professional website that promotes my chemicals trading business. The site should be visually appealing, user-friendly, and optimized for search engines.

Key requirements:
- Business promotion focus
- E-commerce functionality for product listings and transactions
- Secure payment gateway integration
- Mobile-responsive design
- SEO optimization

Ideal skills and experience:
- Proven experience in developing retail websites
- Strong understanding of e-commerce platforms
- Knowledge of SEO best practices
- Ability to create secure payment systems
- Excellent design skills for a professional look

Please include examples of previous work in your bids.