Cross-Platform Music Streaming App

I'm looking to develop a comprehensive music streaming app available on both iOS and Android platforms, alongside a desktop web application. This app will not only allow users to stream music but also provide a marketplace for musicians to sell their music and merchandise, and even host virtual events.

Key Features:
- **Streaming Music**: Primary function with features like:
- Playlists creation
- Offline listening
- Song recommendations

- **Marketplace for Musicians**:
- Sell music
- Sell merchandise
- Host virtual events

- **Admin Management**: Admin pages to manage users and musicians

Ideal Skills and Experience:
- Proven experience in developing cross-platform mobile and web applications
- Strong background in music streaming technologies
- Experience in building secure and efficient marketplace functionalities
- Familiarity with admin panel development for user management
- Knowledge of UI/UX design principles to ensure a user-friendly experience

Please provide portfolios and relevant project experiences. Looking forward to your bids!