I applied online. The process took 2 weeks. I interviewed at T-Mobile (Boston, MA) in Sep 2011
Interview
Call on the phone, interview with manager. Where basic questions were asked, the get to know you kind. Then you'll have to pass the assessment. Surprisingly many people don't pass, but sometimes the brightest bulbs aren't applying. They tell you to answer honestly and sometimes if your a rebel at heart and would tell a manager off, I wouldn't necessarily say yes...lol
I applied in-person. The process took 2 days. I interviewed at T-Mobile (New York, NY) in Jul 2015
Interview
I applied two days ago online and next day they called me regarding interview with 3 different managers. So i went for the interview next day, and they asked me few question and said i should receive a call in day or two regarding the background check up.
I applied online. The process took 4 weeks. I interviewed at T-Mobile (Sugar Land, TX) in May 2015
Interview
Applied online fairly easy just long and tedious. Then after about a week was called for an interview at the store I applied at. I was interviewed by the GM and the Store Manager. Then there was a second interview at a different store with two different managers. I did not get further than that.