I applied through a staffing agency. The process took 5 days. I interviewed at Citi in Jul 2015
Interview
The process was moderate at difficulty level but had a lot of rounds. They tested technical skills, behavioural skills and temperament to tackle real life issues in software industry. In all there were 5 rounds but I believe the technical round was the key.
Design and scenario based questions, not straight from theory or books. Keep your concepts clear in programming and skills for developer roles. I applied for senior role, more questions they were expecting were in distributed architecture, complex KARAT coding etc.
Interview questions [1]
Question 1
System design questions, related to event processing for communication between different microservices.
The initial interview round is conducted by Karat, a third-party technical screening company. You will participate in a live, person-to-person online coding assessment to evaluate your core engineering competencies. All in all, it was good.
I applied online. I interviewed at Citi (London, England) in Feb 2026
Interview
Easy first round they use screen tool to ask you write some code. Second round is scheduled then got cancelled saying they will not proceed further? Waste of time in my opinion, also the interview person has nothing to do with the role you apply for.
Interview questions [1]
Question 1
Figure out a bug in the code.
Then write a small method.