Cross-Platform E-commerce App Development

I'm seeking an experienced full-stack developer to create a cross-platform e-commerce mobile application for both iOS and Android.

Key requirements include:
- User-friendly interface and seamless navigation
- Secure payment gateway integration
- Robust backend to manage products, orders, and users
- Advanced search and filtering options
- User authentication and profile management
- Push notifications for updates and promotions

Ideal skills and experience:
- Proven track record in mobile app development
- Expertise in both iOS and Android platforms
- Strong knowledge of e-commerce functionalities
- Familiarity with secure payment integrations
- Experience with UI/UX design principles

Please share your portfolio and relevant experience. Looking forward to your bids!