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      Capital One

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      Senior Software Engineer Interview

      20 Sept 2024
      Anonymous interview candidate
      No offer
      Negative experience
      Average interview

      Application

      I applied through a recruiter. I interviewed at Capital One

      Interview

      I was contacted by a recruiter and asked to complete a 70-minute CodeSignal test, which consisted of LeetCode-style(not on leetcode) problems. Power Day Virtual Interviews: Design a Banking App: This went fairly well. I thought I performed well, although using Zoom’s whiteboard feature was frustrating, to say the least. Behavioral Interview: Pretty straightforward—standard questions like when you’ve learned something new, shifted priorities, or disagreed with a manager. Following the STAR method made this fairly simple. Case Study: They described some apps and listed a few business use cases. I was also asked to identify bugs in the code. It was odd because they let you choose the programming language, but only part of the code was in my chosen language; the rest was in TypeScript/JavaScript. Coding Round: I was asked to design a banking system (OO-based) with features like deposit, transfer, and retrieving the top N transactions. The implementation was left up to me, with minimal feedback from the interviewer. Toward the end (with about 10 minutes left), the interviewer remarked, rather condescending, "This would only work for a few records. What if I gave you millions of records?" He seemed to expect a multithreaded solution in a 50-minute coding session—which seemed unrealistic. I explained that, in a normal scenario, you'd not send in batch transactions like the scenario he presented and would have to consider server resources before implementing multithreading, this would be hard to do on a platform like CodeSignal. From his tone, it felt like the interview was just a formality. A day or two later, I received a rejection email from the recruiter. No feedback was provided, but I was told I could re-interview in six months—if I was willing to take a full day off for it. They also mentioned that interviews could happen on any day, with only 24 hours' notice beforehand. There was a clear lack of respect for candidates' time, so needless to say, I’ll PASS.

      Interview questions [1]

      Question 1

      something new, shifted priorities, or disagreed with a manager.
      Answer question
      11

      Other Senior Software Engineer interview reviews for Capital One

      Senior Software Engineer Interview

      2 June 2026
      Anonymous employee
      Boston, MA
      Accepted offer
      Neutral experience
      Average interview

      Application

      I interviewed at Capital One (Boston, MA)

      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
      Answer question

      Senior Software Engineer Interview

      27 May 2026
      Anonymous interview candidate
      No offer
      Negative experience
      Average interview

      Application

      I interviewed at Capital One

      Interview

      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.
      Answer question

      Senior Software Engineer Interview

      7 May 2026
      Anonymous interview candidate
      Ciudad de Mexico
      No offer
      Positive experience
      Difficult interview

      Application

      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