First the OA has 4 questions (1 easy, 2 med, 1 hard) with a short time period around an hour and a half. Answering >3.25 questions is usually enough to progress.
If you pass the OA, you are invited to the Power Day which is 3 interviews (1 hour each) with an hour break. The Technical interview was an OOP/Class Design question (Leetcode Easy) and the next question was a Leetcode Medium/Hard related to Linked Lists. The Behavioral was a pretty standard interview with 3 "tell me about a time when..." questions, but be prepared to answer a TON of follow up questions. Lastly, the Case Interview was not necessarily difficult but unique involving a specific problem experienced to Capital One and it involved a lot of data analysis / coming up with an efficient approach to implement the analysis in code. I would say that the most important thing is even if you have difficulty with a certain part, to always keep communicating with your interviewer.
4 rounds of interview including coding , design , case study, behavioral after clearing the code signal assesment. Coding was medium hard of 2 questions each. case study and system design was difficult.
This took a bit longer than expected, stretching over several weeks. The technical rounds were intense, featuring an LRU cache implementation and a problem on detecting duplicate transactions within a 60-second window. I was nervous at first, but it clicked for me when I realized I had practiced a similar approach on PracHub just days before. Unfortunately, I didn’t receive an offer in the end, but the experience was a solid learning opportunity. The behavioral questions felt straightforward, so I wish I had made a stronger impression in the technical segments.
Interview questions [2]
Question 1
Implement an LRU cache with get and put operating in O(1)
Un proceso largo, pero sin mucha complicación en el proceso. Empresa atenta en todo momento a dudas y disponibilidad de tiempo para las entrevistas. Exámenes con temas sencillos y complejos. Variedad en los ejercicios