- Design and develop Native iOS/Android applications using Swift, SwiftUI, Objective-C, Kotlin, Java - Reactive Programming using ReactiveSwift, RxSwift, RxJava, RxKotlin - Hybrid app development using React Native, Ionic, Xamarin - Have extensive knowledge and experiences in OOP(Object Oriented Programming) Architecture - Expert in Multi-Threading, Client/Server Programming, Database Programming, Networking - Building backend service using Php(Laravel, Codeigniter), Node.JS, Python. - Database Programming (MySQL, Sqlite, CoreData, Realm, MongoDB, Dynamo, PostgreSql) - Social Media Integration, Geo-Location, GPS tracking, Payment gateway integration. - Cloud Backend service integration such as Firebase, AWS, QuickBlox ... - Chat/Messaging app development using Twilio, Firebase, QuickBlox, XMPP, Socket.io - Facial/Text recognition using Deep Learning, Computer Vision, MLKit - Image/Video processing using Metal, OpenCV, OpenGL, 3rd party plugins. - Server Management (AWS EC2, Digital Ocean, Heroku) - Source Version Control(Git/Bitbucket/SVN and etc) - Task/Team Management tool (Github, Trello, Jira, Slack) - Bug tracking system(Crashlytics, Instabug, Sentry, Bugsnag)