Audio Streaming App Development -- 2

I'm seeking a verified Indian mobile app developer to build an audio/music app. The app should support both Android and iOS platforms.

Key Features:
- Audio streaming
- Playlist management
- Background playback
- User authentication via email/password, social media, or phone number
- Firebase backend preferred, but open to suggestions

Ideal Skills:
- Proven experience in developing audio/music apps
- Strong expertise in mobile app development for both Android and iOS
- Experience with Firebase or custom backends
- Solid understanding of user authentication methods

Please include your portfolio and WhatsApp contact in your bid.