Applied through on-campus job board. Initial phone screening and coding interview conducted over skype - very basic questions about experience/interest in company and fairly straightforward question about counting duplicates in an array. I was called back a week later to do an on-site at the NYC office. Fairly straightforward coding questions (implement a HashMap, and then a MultiHashMap, where keys are denoted by more than one key; i.e. (<K1,K2>,V), implement a spell-checker, etc.). Interesting parts of the interview were from an individual from the product team ("If you had to build a new insurance company today what would be your products and business plan"), and from a data scientist (suppose you have a rectangle embedded on the plane, and a disk with the points contained within the rectangle. If you randomly throw a fixed triangle into the rectangle, what is the probability all its endpoints are contained within the circle?). All-in-all, the process consisted of 4 on-site interviews. After that, I got a call and interviewed one more time with an individual over skype (sort a k-sorted array of integers, where each element is only k indices away from its final sorted order).

I had behavioral interviews and then 4 in person interviews. The behavioral was straightforward. There was also a data query interview where they taught you a new "language" and had you execute basic queries in it. Then there was a system design interview. I had two of these. The last one they asked me if I was deployed to the moon to identify new species of alien what kind of system would I build.