I applied online. The process took 2 weeks. I interviewed at Dundee University Students’ Association (Dundee, Scotland) in Aug 2013
Interview
You talk about when you can start and if you are able to work on Tuesday, Friday and Saturday.
If you can you have just passed the interview. They may ask if you have any previous experience and if not don't worry they will do training. Which is minimum by the way and you WILL be learning on the job. So prepare to mess a few orders up.
Interview questions [1]
Question 1
What is your previous experience?
Can you work on bla bla bla days?
When can you start?