Hi.
My area of expertise include
Android studio
Java
xml
and most commonly asynctask, volley, json parser custom adapter, broad cast receiver etc.
This is enough to convince you that my expertise truly meet your job requirement.
If you want to you ask anything more specifically, its my pleasure to satisfy you.
please contact me before accepting an offer because time and amount offer here is dummy and it will depends on your requirements.
Kind regards
Imran Sheikh