Android Firebase Integration + Some minor tasks

Hi there, I need a freelancer who is comfortable working with Data Binding, Firebase Login/Signup and Firebase Database. Here is a list of tasks that need to be completed: 1. Implement firebase login/signup with Google,facebook,email. 2. Maintain user profile on the database with the key that was made during signup. 3. Add features such as Favourites, Like count and comment count. 4. Get data from firebase database and show in recyclerview for each user. 5. Build 2 UI screens. 5. Finally, integrate a payment gateway (the name of the payment gateway will be disclosed when we successfully hire a freelancer). Firebase database is already built and hence you only need to pull the data. Only when a new user registers, the data has to be pushed on the database. Need someone who is willing to work without any hassles over small things.