Write an Android application

I need an native Android application developed which would be having the following features: - Group Chat Window like Whatsapp - Homepage/Feed like Facebook - Profile Page wherein your activity is reflected Knowledge of database management and backend work is a big plus. The detailed idea and wire frames would be shared once a person is selected based on their experience and portfolio. Work would start probably after a week or 10 days from now as the design is still being finalized. Following that this application needs to be developed in minimal time. Lemme know if you think you're competent enough and have the necessary skill set.