I applied through a recruiter. The process took 2 weeks. I interviewed at Citi in Mar 2011
Interview
For the phone interview, the interviewer asked me few questions about java collection, how hashtable work, and few database questions. Then they invited me to have a face-to-face interview with 7 people on two different days. One asked to read a piece of code snippet and explain how it works. The others asked me quite a lot of question on multi-threading and few brain teasing questions. At the end, the director asked me to come up with the fastest algorithm to solve a problem - you are given a list of integer continuously and find the max of last 10 minutes of integer you are given. He also asked me how would I implement web pagination.
Interview questions [1]
Question 1
Reverse a sentence in word with least passing and no extra storage.
Interviewer didn't show his face as usual. I've interviewed with Citi bank several times over the years and they never show their face even if its a panel of people.
They asked technical language definition questions. Only has vague answers about what the job is because he doesn't know. His only job is to grill you on whether you know what one java syntax does compared to another. Apparently they think that's the only thing that's important to working for Citi. Do you know how the inner workings of this keyword in java, spring, angular, or sql? Yes? Great. We have 30 more similar questions for you. If you pass this round, we will do this again for 3 more separate interviews where each round another faceless interviewer will ask you another list. After the interviews you learn nothing about the company and give you no reason to want to work there.
1st round HR discussion- good
Second round Technical discussion - nice experience interacting with team
Third round manager - About discussions and understand the culture
Fourth round - HR manager round , To discuss about salary and benefits and
tech interview, asked some basic questions about python and two lc medium questions. Both aint too bad, but I didnt prepare for the interview so I communicated badly, as a result I didnt pass.