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Hello, I am Native Mobile Android Developer experienced in Java, and Kotlin, I worked with Agile methodology and WaterFull And I worked before with Firebase Authentication, realTime, and fireStorage as I worked with Design patterns like MVC, MVP, MVVM, and MVI. I worked with Retrofit, and Room as Remote and Local Data Sources I worked With backends to get data from them and post data to it, I worked with JavaRX used it in Reactive Programming With Threads And I am aware of the Android system LifeSycle and all of its components like Activity, Fragments, Services, Broadcast Receiver, ext.