hi there,
First I introduce myself am experienced Android developer, developed many applications as well as published in play store.
I saw your requirement website to Android app, this is very familiar to me. Most of application I did like this kind of application, yes I will share my previous work as well. WebService also we will take care.
Developed will me latest Android studio and till Android Oreo version and material design, mvp design patterns with Rich UI interface.
so am eagerly to do this project, with your expectations and budget, please contact me for further information and my previous work
thanks,
vignesh