Xcode, Core Data, MVVM, Push Notifications, Restful Apis, Singleton, Jenkins, Bitbucket, Core Animation, Mvc, Swift, Foundation, Cocoa Touch, AWS, cloud messaging, Builder, SwiftUI, Memento, Observer, UI-Kit

Coredata, Cocoa Touch, MVVM, Debugging, Json, Swift, Mvc, Objective-c, Git, Auto Layout, Fcm, Restful Apis, Instruments, UI implementation, App Store submission, Firebase Realtime DB, third-party libraries, AVFoundation, release process, CoreLocation, Universal Links, CoreAnimation