iOS and Android DEVELOPMENT: ✓SwiftUI, Swift, Objective-C, Java programming languages; ✓ Apps for iPhone, iPad and Apple Watch, Android devices; ✓ Flutter; ✓ Building iOS prototype apps; ✓ Create backend for apps (PHP, Firebase, Parser); ✓Clean software architecture: MVC, MVP, MVVM, VIPER; ✓ RxSwift, Unit Tests ✓ GoF Design Patterns, SOLID ✓ Multithreading, Memory Management ✓ AutoLayout, Cocoa Framework, CocaTouch ✓ CoreAnimation, CoreGraphics ✓ Networking, WebSocket, HTTP ✓Databases: Firebase, Realm, CoreData, SQLite, iCloud storage, CloudKit,JSON, XML; ✓Augmented Reality: ArKit backed by SpriteKit or SceneKit; ✓Computer Vision with OpenCV; ✓Notifications: Push and/or Local; ✓Analytics: Google Analytics, Flurry, AppsFlyer; ✓ Social Networks integration: Facebook, Twitter, Instagram, LinkedIN; TEAM WORK: ✓Knowledge of Agile practices; ✓Tools for cooperation: Slack, Trello, Asana, Git (Github, Bitbucket), Fabric;