I applied online. The process took 1+ week. I interviewed at G4S (Londres, Inglaterra) in May 2014
Interview
I had a phone interview first, which led to a 1:1 interview. I then had to come in a third time to have an interview with another manager. The third interview they offered me the job on the spot and told me I had to complete competency tests and an IQ tests. If I passed the tests I could work for them.