ASP.NET

• Webforms
• MVC
• ASP.NET Core
• Xamarin.Forms .NET for Android and iOS

Databases

• Microsoft SQL Server
• MySql
• SqLite

Other technologies

• Node.js
• DNN DotNetNuke management
• App integration with Azure AD Graph
• PHP - WordPress

Frontend

• Html5
• Sass
• JQuery
• JavaScript