I applied online. The process took 3 weeks. I interviewed at Citadel (Chicago, IL) in Sept 2019
Interview
I had online assessment, which had two questions. After finishing it, the recruiter contacted to schedule a 45 minute technical phone interview. They asked a few dp questions and graph questions. Then, onsite interview, which consisted of 3 60minute interviews.
First did OA and only passed 1/2 questions, where the first one was probably a leetcode medium and the second one was an easy. Then got first round interview, which I havent done yet.
Interview questions [1]
Question 1
1st OA questions was I think a search problem and 2nd OA question was a dp problem.
First round 45 mins total with short behavior and technical. I had one question, which was a class design question using heap. Solved question in time but did not hear back.
OA, one technical round, technical superday (3 interviews), leadership call rounds (mix of technical and behavioral qs, typically 2 ro more calls). did not pass the leadership round, very high variance.
Interview questions [1]
Question 1
lots of OS, computer archictecture, c++, language internal topics