I applied through college or university. The process took 1 day. I interviewed at American Express (Miami, FL) in Sep 2016
Interview
Submitted my resume at my university's career fair and received a call about an hour later to schedule an on-campus interview the next day. Interview took about 30-40 minutes roughly, wasn't too bad. Interview was conducted jointly by a recent graduate and an experienced employee. Questions were a mix of case questions and behavioral questions.
Interview questions [2]
Question 1
AmEx needs a call center that can support 100,000 calls per year. How many customer service staff will you hire?