I developed apps based on MVC/MVC-N/MVVM, TDD, Unit Tests, UI Tests. I worked with performance and responsiveness optimizations with Xcode Instruments: Time Profiler, Leaks, CoreAnimation, Energy Log. My skills and preferred tools: - Native development: --- Frameworks: Foundation, UIKit, AppKit, ARKit, CoreML, Core Graphics, GameKit, SpriteKit, SceneKit Core Audio, AVFoundation, WebKit, MapKit, Core Data, Core Location, WatchKit, WatchConnectivity, HealtKit, etc --- CocoaPods: Alamofire, SwiftyJSON, Realm, Firebase, IQKeyboardManagerSwift, Bond, KeychainSwift, Transporter, TransitionAnimation, Lottie, etc - Cross-platform development: - Programming languages - Swift, C#. I also have experience with: - Leaderboards and Achievements, - In-App Purchases, - API integrations - Facebook, Twitter, etc. - Firebase. - Fabric