My primary focus is web programming with PHP and MySQL databases. For complex sites I organize code into a MVC (Model View Controller) design pattern. It really helps make sites easier, and quicker, to modify for myself and other developers.
I'm also very skilled with Android app development. My apps are heavily tested on emulators and I've learned quite a few tricks of the trade to developing apps. I can create both standard Java-based Android apps as well as HTML-based apps that run in the phone.
I know how to use all the major features of HTML5: new semantic markup, microdata (good for SEO), local storage, Canvas API, video tags/elements, and more.