Cross-Platform Marketplace App Development

I am looking to develop a shopping application for both Android and iOS. This app will serve as a marketplace, featuring both physical and digital products.

Key Features:
- Product Search and Filter: Users should be able to easily locate products using various search criteria.
- User Reviews and Ratings: To enhance user engagement and trust, the app will need a section for product reviews and ratings.
- Secure Payment Gateway: The app must integrate a safe and reliable payment system, ensuring a seamless and secure checkout process for users.

Ideal Skills:
- Cross-Platform App Development
- UI/UX Design
- Secure Payment Integration
- Review System Development
- Product Search Functionality Implementation

Experience in developing marketplace apps will be a significant advantage. Please include examples of your previous work in your bid.