E-commerce Mobile App Development

I'm seeking a skilled developer to create a comprehensive, user-friendly e-commerce mobile app compatible with both iOS and Android platforms.

Key Requirements:
- Design and implement an engaging user interface
- Incorporate essential e-commerce features: product browsing, cart, secure checkout, user accounts
- Ensure cross-platform compatibility and optimal performance
- Integrate secure payment gateways and user data protection measures
- Implement SEO-friendly structure to enhance app visibility

Ideal Skills:
- Proficiency in mobile app development for both iOS and Android
- Extensive experience in e-commerce app development
- Strong skills in UI/UX design
- Familiarity with secure payment integration
- Knowledge in implementing SEO strategies within mobile apps

Please share relevant portfolio examples with your bid.