Python, PHP OOP, MVC CodeIgniter, MongoDB, MySQL, MsSQL ,CSS Tableless, Responsive Design, Cross-platform, Javascript, jQuery, AngularJS, NodeJS,  Fackbook API, Paypal API, Omise API, Google Map API, C# Window Applications, .NET Framework, JAVA (Android Developer, JSP), Hybrid Application with Cordova + Ionic Framework, ReactJS, React Native