Proven working experience in Android and/or iOS development
Published at least one original Android/iOS app
Exp with third-party libraries and APIs
Exp in full mobile development life cycle.
Design and build advanced applications for Android/iOS
Exp with Android SDK and remote data via REST, JSON
Exp with offline storage, threading,performance tuning
Design applications around natural user interfaces such as "touch"
Cloud message APIs and push notification
Exp in mobile landscape, architectures