Cross-Platform E-commerce App Development

I need an experienced app developer to build an e-commerce app for both iOS and Android platforms. The app should have payment gateway integration.

Essential Features:
- User account creation
- Product search
- Payment gateway integration (must support credit/debit cards, PayPal, Apple Pay, Google Pay)

Ideal Skills and Experience:
- Proven experience in developing e-commerce apps
- Strong knowledge of payment gateway integration
- Proficiency in both iOS and Android development
- Familiarity with user account management and product search functionalities
- Good UI/UX design skills

Please provide examples of previous work and estimated delivery time.