I've started working with VB5 / VB6 at the end of the '90. Then started using c# in 2003. I have developed client side application using COM/DCOM, VB6 and SQLServer, Windows Forms and WPF application with c#, web sites (both intranet and public facing) using Asp.net Web Forms, Asp.net MVC, JavaScript, jQuery, Bootstrap, Knockout.js, Vue.js and DNN and, more recently, UWP apps and Xamarin.Forms apps. In august 2018, I published my first app in the Android Play Store: How much time?, made with Xamarin.Forms, Caliburn.Micro and SQLite.