.Kotlin, Java-based application Socket Programming . Objective C. . Exposure in Material Design. . Activity, Sq Lite, Services, Broadcast Receiver, Realm, Layouts in Android. .fragment; . Butter knife. . Volley, Retrofit, Google Json . Google Map API, . Geo-fence. . Open-CV. . Camera API. . Good exposure to Git. . Push notification. . Good Exposure to using third-party Booker and Twilio API. . Experience in chat based application. . Experience in material design. . JUNIT TESTING,Espresso Test Cases. . InAppPerchase. . Social networking integration like Google+, Facebook, Twitter, YouTube, LinkedIn . Experience on web service integration ( JSON, XML) . Implementing Handlers and AsynkTask. . Good exposure to core java 1.6. with the collection, Multithreading . Experience in implementing web-based, Wi-Fi-based app. . Exposure to using gyro meter, magnetic field Sensor. . Experience with MVP and MVC. .Exposure in React Native. . Exposure in kotline .Wirframing of app