- Strong knowledge of Android UI design principles, patterns, and best practices - Strong knowledge of Android SDK, different versions of Android, and how to deal with different screen sizes - Familiarity with RESTful APIs to connect Android applications to back-end services - Experience with offline storage, threading, and performance tuning - Knowledge of the open-source Android ecosystem and the libraries available for common tasks - Knowledge of SQLIte database and shared preferences - Familiarity with cloud message APIs and push notifications - Experience On Payment Gateway Integration(Paypal,stripe,poli) - Knowledge of third party API integration (like Facebook) - Hands On experience of Google play services and google maps API - Hands On experience of google autocomplete textview API - Hands on experience on material designing - Knowledge of keystore file and Signed apks. - Experience to upload and update app in Google Play store