I applied online. I interviewed at T-Mobile (Snoqualmie, WA) in Jan 2015
Interview
Interview was quite simple. Just a phone round for technical screening. Interview lasted for about 25 minutes. It really helped that I have a recommendation from another full time employee
A tech round with a relatively easy SQL question and the follow up questions. Then a panel call with multiple interviewers asking behavioral questions, past experience and other follow up questions.