Citi Quantitative Analyst interview questions

The first round was on campus interview. Questions including brainteasers and math. Pens and paper were given. The interviewer is super nice and will give you hints when you stuck on the problems. The whole process took around thirty minutes. At the end I was asked which programming language I was most familiar with.

It took about 2 weeks. 4 rounds of interviews, HR and 3 technical interviews. About 1 hour for each round of interview, people are nice. After each interview, notice of next one was sent by email immediately, HR arranged a time and give you a phone number you should call at the time arranged.