React Native VOIP Wireframe

We`r looking for React Native developer to build wirefame of VOIP application, based on react-native-callkeep implementation.
We can provide a backend with simple api for testing if necessary.

App should have:
- implementation of REDUX
- implementation of react-native-notifications
- implementation of react-native-callkeep
- customizable incoming callUI for Android Self Managed Mode
- native incoming call ui for ios
- webRtc connection flow w in separate Redux middleware
- websocket logic in separate Redux middleware
- display incoming call ui when app is in background or closed
- react for accept/decline call buttons in Android Self Managed Mode and native IOS incoming call UI.