I applied through college or university. The process took 4 weeks. I interviewed at American Express (London, England) in Nov 2016
Interview
This was a pre-screen call for their MBA internal strategy role. Short (10 min) phone screen to see if they want to bring you in for a full interview. The questions were pretty standard as it really was a very short call. From here, you'll find out fairly shortly whether or not they'll call you in for the full interview.