Required Kurento,WebRTC freelancer for Interactive Live Streaming with Multiple Active Speakers job

We need interactive audio live streaming with multiple active speakers.
We need mobile app (iOS & android) and backend support for this.
We need a solution where multiple users can connect to each other and have audio chat using their respective mobile devices, and we want to live stream this conversation to make it listen by other users. Supported listeners count should be in thousands, and active speakers in a live streaming should me upto 3-4 users at a time. Minimum lag in audio is desired.

Deliverables-
Android & iOS mobile app with complete source code.
Live streaming server setup and complete source code.

We need relevant skilled person or team.

Skills & Expertise Required

Kurento WebRTC