I'm looking for an expert mobile app developer who can build me a chatting app like telegram with the following functions.
1. Text/Image Chat
2. Voice Chat
3. Realtime voice call
Only bid if you have previous experience of building a chat app and expertise in React Native(Redux Saga), Node.js, MongoDB and Firebase.
Candidates need to be fluent not only in written English but also oral one as they will be asked for a video or a voice call.
Price is negotiable.