E-commerce WebApp Development

I'm seeking a skilled full stack developer to create an e-commerce WebApp. The application must be responsive and work seamlessly on desktop, mobile, and tablet.

Key Requirements:
- Build an intuitive and user-friendly interface
- Integrate credit/debit card payment processing

Ideal Skills:
- Proficiency in front-end and back-end technologies
- Experience with payment gateway integration
- Strong understanding of responsive design principles

Please provide examples of similar projects you have completed.