Dear Employer!
As You Can See From My Profile, I Am An Expert For Mobile App System Development.
In particular, apps and backend system are my major work.
I have rich experience in JSON/XML, PHP & MySQL Web Service API, GPS and Geolocation API, Facebook API, Twitter API, GPS, Payment Gateway APIs, eCommerce platforms.
I am expert in Core Graphics, Uber, Payment Integration, ICloud, Social app, Voice Recognition, and popular service like push notification ,local notification , geolocation , and qr code and etc.