I applied through a recruiter. The process took 2 weeks. I interviewed at Citi (New York, NY)
Interview
I was contacted by recruiter and was promptly followed by technical phone screen.The technical phone screen consists of combination of basic and programmatically intuitive questions from all the modules in your resume.Be prepared for the tech questions.I was called for inperson interview with in a week.The questions here mostly consists of medium to difficult concepts ranging from Datastructures, understanding of the implementation of the API, Design approach etc
Interview questions [1]
Question 1
1.Please give algorithm to sort given nos. from 1 to n, with O(1) binary notation
2.Explain the internal implementation of hash map.
3.Caching
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 (Londres, Inglaterra) 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.
