I applied through university. The process took 2 days. I interviewed at American Express (Tempe, AZ) in Apr 2015
Interview
The first interview consisted of an on-campus 90 minute sitdown with two developers. The first half was comprised of behavioral questions, and the second was technical. After this, I was invited to the Scottsdale office for another 90 minute interview, which was largely the same process. It was a fairly routine pool of questions on either end of the spectrum, and nothing came as a surprise. I have my suspicions that the last interviewer of the second day was intentionally hostile to gauge how well prospective interns handle pressure in a work environment.
Interview questions [1]
Question 1
(NP-complete question listing several items and their corresponding weights) You want to know the best way to fill a backpack. How many of each item i with weight w should be added to best fill the space?
lot of rounds of assessment, but quite efficient, there was a group interview, and final interview with the managers you are going to work with, overall good experience, took like less than a month
Una presentación en inglés grabada, una entrevista con el equipo, con preguntas tipo situacional y la última con el director, para que te conozca y tengas la oportunidad de hacerle preguntas.
Very calm, and cool. the company is filled with very nice people so expect a very chill interview experience. You have 1-2 rounds for interviewing but the recruiters will give you tips and tricks.