Custom Gaming Card Platform Development

I'm looking for an experienced web developer to create a personalized gaming card platform. The website should be compatible with both iOS and Android.

Platform Features:
- User Registration/Login
- Personalized gaming card creation
- Customization options: graphics, stats/abilities, backgrounds
- Save and edit card designs
- Share creations on social media

Ideal Skills and Experience:
- Proficiency in responsive web design
- Strong backend development skills
- Experience with graphic customization tools
- Familiarity with user authentication and data security

Please provide a portfolio with similar projects.