Consider getting involved in some of the edX courses. CS169.1 and CS169.2 draw from UC Berkeley's CS169 - Software Engineering and present a course in SaaS. Th

Consider getting involved in some of the edX courses. CS169.1 and CS169.2 draw from UC Berkeley's CS169 - Software Engineering and present a course in SaaS. They extensively use Github as the code repository and are really cool assignments to boot. CS188.1x covers the first half of an AI subject and whilst not using github, certianly was really enjoyable from solving machine learning puzzles. It's in fact probably one of my favourite courses I've done. It's a great way to stretch your brain by either learning new skills or revisiting old, possibly rusty ones. I try to keep doing 1 or 2 at a time.