Live Streaming App Development

I'm looking for an experienced app developer to create a live streaming and broadcasting app similar to Bigolive, available on both iOS and Android platforms.

Key Requirements:
- Live streaming and broadcasting features
- User-friendly interface
- Secure user authentication (to be determined)
- Social networking capabilities
- Virtual gifts and in-app purchase options

Ideal Skills and Experience:
- Proven experience in developing live streaming apps
- Strong knowledge of both iOS and Android platforms
- Expertise in UI/UX design
- Familiarity with secure authentication methods
- Background in integrating in-app purchases and social networking features

Please provide a portfolio showcasing similar projects.