There's an interview with the hiring manager and then the general manager. Just be friendly and excited about all things beauty! Enthusiasm is key.. and you don't necessarily need to know about makeup because a "beauty advisor" can just be a tasker as well.
The process took 6 days. I interviewed at Ulta Beauty in Apr 2017
Interview
I applied for an esthetician job online and was called less than a week later. I also had my interview the following week. They told me to bring a model to do a basic facial and eyebrow waxing. I did the facial while she asked me questions such as where I went to school? What have I been doing since I got my license? What is my availability like? And a couple of other questions I don't recall. Then she said she didn't need to see me wax and offered me the job on the spot.