Currently I'm working with Laravel 5, MongoDB, AngularJS, LaTeX, PHPUnit, QTI and others.
I've also got experience with the following (click on a link to find out more):
Ubuntu and CentOS on AWS, Rackspace and Digital Ocean. Full LAMP stack, Apache, Nginx, bash scripts, crontab, SSH and more.
Built a number of native Android apps (totalling over 50k+ downloads). Experience with in-app purchases.
Also built an iPhone app (Apache Cordova).
You can see my Android apps here