Capital One Technology Intern PowerDay Interview Experience

Capital One Power Day interview lasted four hours, divided into three parts plus a one-hour break: a case study, a coding technical interview, and a behavioral interview. It was my first time having s

Capital One Power Day interview lasted four hours, divided into three parts plus a one-hour break: a case study, a coding technical interview, and a behavioral interview. It was my first time having such a long interview, and I expected it to be grueling, but the experience was actually quite good. The interviewers were all very experienced, having worked at C1 for eight to ten years. The two Indians were quite friendly, while the ABC (American-born Chinese) interviewer was just okay; perhaps he was in a bad mood that day. The case study was about a virtual credit card. First, you were asked to analyze its advantages and disadvantages, then you were given a simple coding problem. It basically involved giving you a bunch of conditions and asking if the credit card number was valid—a simple if-else question, requiring only basic string operations. The technical part involved writing a relatively simple cash back system for customers. It provided different cash back rates and transaction details, and finally, it calculated which merchants offered the most cash back in a month.

Follow-up questions included complexity and optimization. The behavioral part was fairly standard, focusing on solving problems creatively, teamwork experience, and how to handle difficulties. Each section included time for the interviewer to ask questions. Overall, it felt quite easy. Good luck to everyone, and good luck to me too!