If you have a CS degree and virtually no personal experience writing software you have two things: no talent and high employability (at last as of last year).

If you have a CS degree and virtually no personal experience writing software you have two things: no talent and high employability (at last as of last year). That being said know what you want. If you want to be a better software developer the answer is self study. Go build things nobody else can. If you want to do research or open more interesting career opportunities then continue to increase your education.