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      Capital One

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      Principal Software Engineer Interview

      Jul 28, 2023
      Anonymous Interview Candidate
      No offer
      Negative experience
      Average interview

      Application

      I applied online. The process took 4 months. I interviewed at Capital One

      Interview

      The interview started with a phone screening, followed by a "Power Day", which was four consecutive hour long interviews across different subjects. Some were technical, some were architectural, some were behavioral. Up to and through the Power Day I had a great experience. Afterwards, my recruiter told me "I passed, not great but you're still in". Which ran counter to all of the feedback I received live in my power day interviews. Unwilling to provide more detailed actionable feedback. As it turns out, the Power Day is really just a way to onboard you into CapitalOne's internal recruiting platform. You are then in a "team selection" phase which for me lasted months before I finally withdrew my application. The secret is - hiring managers do not trust the power day interviews. Each team interview was starting completely from scratch to rebuild rapport. Days after the team interviews I would then receive a short message that they decided to locate the team in a different city, or that the team had shifted focus, or that they selected another candidate (usually an internal capitalone employee). I consistently followed up after every meeting and regularly had ignored emails. I expressed repeatedly the urgency with which I was approaching my job search and I was repeatedly kept on a string as if an offer would materialize within days. After mentioning my PTSD in one interview, I was rejected with the feedback "we don't want to overwhelm him". One of the most insulting things I have ever heard - engineering is easy compared to PTSD. This was the only feedback that would be provided me. I asked after every exchange for feedback to improve my candidacy and was denied any, but still they wanted to keep me in process? But didn't want me to improve? The hiring process is borderline illegal with the treatment I experienced after informing them of my disability.

      Interview questions [1]

      Question 1

      Standard coding, systems design, architecture, and behavioral questions. Followed by chaos as the hiring managers reject the previous stages of the interview.
      Answer question
      4

      Other Principal Software Engineer Interview Reviews for Capital One

      Principal Software Engineer Interview

      Nov 24, 2025
      Anonymous Interview Candidate
      No offer
      Positive experience
      Average interview

      Application

      I interviewed at Capital One

      Interview

      It was a standard interview process. Your technical interview which included multiple different rounds all in one day. It included a coding question, systems design question, business use case question, behavioral interview.

      Interview questions [1]

      Question 1

      How would you design a banking system.
      Answer question

      Principal Software Engineer Interview

      Nov 5, 2025
      Anonymous Interview Candidate
      Toronto, ON
      No offer
      Neutral experience
      Difficult interview

      Application

      I interviewed at Capital One (Toronto, ON)

      Interview

      30 min quick call Technical round of leetcode type questions Unfortunately ended there as i didn't pass the that round. Presumably it was going to be system design after this online leetcode question and then onsite.

      Interview questions [1]

      Question 1

      Standard Leetcode questions, asked a 1 easy, 2 medium/hard questions
      Answer question

      Principal Software Engineer Interview

      Dec 17, 2024
      Anonymous Interview Candidate
      Toronto, ON
      No offer
      Positive experience
      Average interview

      Application

      I applied online. The process took 2 weeks. I interviewed at Capital One (Toronto, ON) in Dec 2024

      Interview

      Applied on their career site and was reached out to by the recruiter over email and phone. First round was a 70-minute proctored CodeSignal assessment. The last round consisted of two parts, spread across two days – the first part was a 1-hour behavioral round with a tech lead, and the second part was a 1.5-hour pair programming session with two staff-level engineers and a shadow interviewer.

      Interview questions [3]

      Question 1

      CodeSignal Assessment consisted of two easy, one medium and one hard coding questions. Expectation was to be able to solve at least two completely, with a partial third for extra points.
      Answer question

      Question 2

      Behavioral round was generic. Four questions over 1 hour to be answered in the STAR format.
      Answer question

      Question 3

      The 1.5-hour pair programming question was not like your typical LeetCode question. It simulated a type of problem that you would solve at a bank/credit card company. The focus was algorithmic implementation; not so much OOP concepts.
      Answer question
      2