I applied online. The process took 1+ week. I interviewed at Scientific Games (Sydney) in Mar 2013
Interview
Telephone interview, then some maths/probability questions and a face to face with the director. Everyone was very nice and routine questions. They ask the usual question. Why do you want to work for us; why do you want to be a game designer? I got an offer after the 1 on 1 interview with the director. The maths problems include dice and ev questions.