I applied online. The process took 2 weeks. I interviewed at American Express (Kuala Lumpur) in Mar 2016
Interview
Two interviews in person. Fairly lengthy about an hour each. They ask you a few questions about your past career. Nothing too gruelling. I was interviewed by three people (in a session) so that was a bit overwhelming. They send you an email that explains what they expect from you at the interview, that is very helpful.