I applied through a recruiter. I interviewed at American Express in Feb 2018
Interview
Interview had 5 rounds. In all the rounds they have asked program language specific questions. Also scenario based questions. It took around two and a half hours. They will let you know the results within few days.
Interview questions [1]
Question 1
Some of the basic Java programming questions were asked
I applied online. I interviewed at American Express
Interview
3 rounds, HR screening, managers interview, director interview,
mostly on your experience and your competency.
Some questions were repetitive. Took a few weeks in total. HR quite responsive. But feel like the whole process can be a bit faster.
I applied through an employee referral. I interviewed at American Express
Interview
Typically starts with coding assesement, then interview round for python, sql, pandas, guesstimates, resume based question comes. Then some questions on Data Science, machine learning, deep learning, hyperparameters, loss functions.
There are total 3 rounds of interview (phone interview with the HR, face to face interview with the line manager and the department head)
Questions can be prepared through research like the value of company
Interview questions [1]
Question 1
Self introduction, questions about your work experience