Applied and scheduled interview time through university's career website. Interview was split into the standard two portions: 1) behavioral and 2) case interview. Lots of freedom to describe background in behavioral portion. No surprise questions. Case interview was extremely straight forward—no tricks whatsoever.

There are two rounds of interview from campus recruiting for LA office. 1st round consists of 2 interviews, one behavioral by managerial position, one case by an associate. The case was pretty straightforward and structured. It's kind of like a walk-through of how they help clients market new products. The manager was friendly and shared a lot of trend issues with me. 2nd round consists of 3 interviews, 1 demo. 1 case interview was like a structured, walk-through as well. Might need to be careful not to make stupid mistakes. I did that... 1 case interview was more open-ended. I got a packet of slides and need to come up with recommendation. The manager suggested me to say my final recommendation first before explaining why. 1 behavorial interview was hard. The interviewer really wants specific answer.

I had an initial 1-hour interview on campus and was invited to the Evanston office for a second-round two weeks later. The first round was a behavioral and a case (written), and the second round was a behavioral, demonstration, lunch, and two cases. Overall the interview was not a bad experience, although one of my case interviewers was rather unpleasant and discouraging. ZS is highly interested in quantitative skills. Background/knowledge of the pharmaceutical industry is not required