My name is Mohamed Zain; I have a Bachelor’s degree in Engineering and I have started to learn programming and Android 9 years ago, started working from 8 years as an android instructor , then working in 4 different companies. I have developed about 26 applications and 16 of them published on google play. My Technical Skills: SOLID, Problem-Solving, Design patterns, Kotlin, Java, OOP, RESTful APIs, Retrofit, MVVM, RXJava, Socket, Room DB, Google Activity Recognition, Google Maps, Firebase, push notifications (FCM), gitLab, GitHub, HubConnection (Chat), Agora (Video Call)