I applied online. The process took 2 weeks. I interviewed at MTR (Kowloon City, Kowloon City) in May 2013
Interview
You will be invited to a group interview with about 3 to 4 people. They will ask you some questions like how you recommend them to promote some schemes or how you reduce the traffic congestions. The interview was easy.
Interview questions [1]
Question 1
The problem is that they might conduct the interview in Cantonese, which mayn ot be pleasant for English speakers or Mandarin speakers.