Here are my main skills: - iOS , iPhone, iPad, Objective-C, Swift2, 3, 4 - Android, Java, C#, NDK, Kotlin - Cross platform, Ionic Framework, Xamarin, React Native, Cordova, Unity - Web services, Restful APIs, JSON, XML, RSS, SOAP, Node.js, PHP, Python, Angularjs, jQuery, Javascript, HTML5/CSS - Amazon S3 Bucket, AWS EC2, Firebase, Azure, Back4app - MySQL, MsSQL, MongoDB, SQLite, Sexualize - Source Repository, TestFlight, Github, SVN, BitBucket