I applied through college or university. I interviewed at American Express (Chandler, AZ) in Apr 2015
Interview
We initially spoke about the projects I had done in my resume. This was followed by a technical round. This was followed by a Kaggle question related to retail and how I would solve this using Machine Learning algorithms (preferably KNN method).
I applied through college or university. The process took 2 days. I interviewed at American Express (Tempe, AZ) in Apr 2015
Interview
I got the email about the position through the university emails. I sent my resume to them and surprisingly after just 1 hour they sent me some timeslots to interview with them! They also provided me a conference call number along with a passcode to call them.
In the day of interview, there were basically three people, one of them was a leader and the others were data scientists at AMEX. They started with explaining their background and wanted me to talk about mine too. After that, they asked two technical and basic machine learning questions. Questions were average and I solved the first one correctly and the second one almost correctly.
It seemed that they had already chosen their candidate at that time and I've heard this from one of my friends who had applied for the position before me and got the onsite interview while I hadn't had my interview yet! I don't know why they still interviewed me while they already knew their right candidate?? I would say this is absolutely not fair while I had a pile of related publications in my resume compared to my friend who didn't have any paper at all!
Interview questions [2]
Question 1
We have like million card members and along with their transactions. Also, we have 10k restaurants and 1k coupons to eat food. Give a method that can be used to pass along the coupons to the users given that some users have already got their coupons so far.
Given a training set of users with their demographic information, psychology test of their personality (openness to like pages or not) and the pages of FB they have liked so far, how could we predict the gender, age and other demographics of unseen data?
I applied online. The process took 3 weeks. I interviewed at American Express (New York, NY) in Nov 2013
Interview
Waste of time. The experience of interviewing with American express for the data scientist position made me wonder wether being a data scientist means that you are a geek with no decent people skill. They treated me in a very unprofessional and unaccepted way. They did not care about showing up on time for interviews. The worst part is that they threw random questions at me. All of the questions were something you could find online for typical interview questions for quantitative positions. I guess they did search for something online before the interview.
Interview questions [1]
Question 1
I think that one of the questions they asked was just have no answer. I seriously doubt the validity of the question.