For anyone in the Pittsburgh area, I've had employees attempt to recruit me in both the Monroeville & Westmoreland Mall Sephoras. I'm an Esthetician/Makeup Artist, so it starts with a compliment on my makeup, followed by me saying, "thank you, I especially appreciate that since makeup is my field," and then they tell me to apply. So, although I can't say for sure, it sure seems like there is room on their "cast" for those in the area looking to get in! I did ask what availability requirements were and was told that weekends are basically a must, as are some evenings. I look at it this way: the more availability/flexibility you have, the more hours you'll potentially get. I do have a friend who worked at the MM location and quit because they "worked her like a dog," so take that as you will!
The hours you work can be very erratic. it just depends on a number of different factors. It can be all over the place. The most hours you will be working is during the holiday. If you're wanting full time or part-time with benefits, make sure to let them know. For some it's easy to get, for others it takes a long time. Some people may never get the offer. All I can say is: work your butt off, show your enthusiasm, be flexible, be positive and smile. They really like a smiling face.. I hope this helps. 
