E-commerce Web App Development

I'm seeking an experienced developer to create an e-commerce web app. The primary feature of this app will be payment gateway integration.

Essential Tasks:
- Design and develop a user-friendly e-commerce platform
- Integrate a secure and efficient payment gateway

Ideal Skills and Experience:
- Proven experience in web app development, particularly for e-commerce
- Expertise in payment gateway integration
- Strong understanding of UI/UX design principles
- Ability to deliver within budget and timeline