I applied in-person. I interviewed at Trader Joe's (Tucson, AZ) in Jun 2016
Interview
I interviewed with two mates and the captain of the store. Felt pretty informal. Most of their questions related to customer service. Pretty standard questions overall. I dressed formally, but I feel like it was unnecessary.
Interview questions [1]
Question 1
How have you related to coworkers in the past and how did you make working with coworkers fun?
Applied online and had one in person interview with the captain. It lasted maybe 10 minutes. Got a call a week or so later that I got the job. Very fast process.
It's two to three interviews, the final with the Captain (or highest manager) of the store. The interviews are largely to get to know your personality and how well you would do at customer service.
The interview process was absolutely wonderful! I didn't feel stressed or nervous and it felt like I was just chatting with a friend! Trader Joes is a great company and the interview was great.