
Web
AngularJS, jQuery, JavaScript, CSS/HTML, TypeScript, ASP.NET (MVC, WebApi), Google Location Api, linq.js

Mobile
React Native, Xamarin, Android, WPF

Backend
.NET (C#), MS SQL, Entity Framework, IIS, WCF, Azure

Special purpose
R for data mining, Gurobi for optimization (linear, quadratic, quadratically constrained programming)