I applied online. The process took 3 weeks. I interviewed at Capital One (New York, NY) in Sept 2022
Interview
Basically the exact same as what is said in other posts but I'll reiterate because thats what I would have wanted.
Applied online took 3 weeks from start to offer. After applying I spoke with a recruiter and answered a couple questions about my resume. I then was sent a 2 hour long online assessment with 4 coding questions. Leetcode style, I would rate them easy, medium, medium, hard. I only completed the first 2 questions and had barely started on the third by the time the timer was done and I still moved on to the final round so don't stress too much.
Final round is "power day" 4.5 hrs long 4 hour long interviews with a 30 minute break. 2 technical, 1 case, and 1 behavioral.
System design technical - Design a credit card paymemt system. Basically a use case with API, DB, and UI. Give as much detail as possible and listen to the recommendations the interviewers provide.
Coding technical - Couple of coding related questions. ie. What is encapulation? Given an array of integers output the two integers that sum is closest to zero. Geeks for geeks has a similar problem you can practice.
Case - 3 sections : Conceptual, given different sprint timelines what kind of testing would you suggest, simple or rigerous. Math, given the cost of the simple and rigorous testing with this budget would they stay in budget? Coding, given this batch script what issues do you see in the results and how would you resolve those issues?
Behavioral - 3 tell me a time when... you had to shift priorities, disagreed with your manager, and had to learn something new.
Overall not too difficult of an interview if you prepare. Enjoyed everyone I talked to and recieved an offer 3 business days after the interview.
Power day style interview, two coding, one system design, one behavioral. Everyone was nice, but the interviewers seemed a little under prepared and/or new to interviewing in general. Questions where essentially leetcode medium/hard almost word for word.
Interview questions [1]
Question 1
Leetcode Count primes, looking for optimal solution
Code assessment then to power day interview with 4 rounds. Overall the power day interviews were okay except for the case study. The interviewer was disengage while being on their phone the whole time. There was a part where the interviewer said fix the mistakes then went back to their phone. I pointed out their code has other errors with template and was ignored. Then while attempting to fix those (10 mins later) they mentioned to ignore that part and focus on the very bottom part of the code. What a waste of time and very unprofessional. This makes me wager a few of the interviewers probably could not pass their own interview process today.
Interview questions [1]
Question 1
Code signal 4 questions. Power day is one coding question, system design, case study and behavioral.
I applied through other source. The process took 2 months. I interviewed at Capital One (Ciudad de Mexico) in May 2026
Interview
Excelente code challenge después de eso, preparaciones para un powerday q es básicamente 4 entrevistas técnicas en un solo día, es de 1 hora cada uno y al final de dicen si queda o no
Capital One Senior Software Engineer Interview Questions | Glassdoor