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      Capital One

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      Principal Software Engineer Interview

      Oct 7, 2016
      Anonymous employee
      Toronto, ON
      Accepted offer
      Positive experience
      Difficult interview

      Application

      I applied in-person. The process took 1+ week. I interviewed at Capital One (Toronto, ON)

      Interview

      Capital One has a good process to screen and interview candidates. I thought the process was fair and challenging. If you are good at what you do the interview is not too hard to crack. The process involved having a couple of screening rounds with recruiters at Capital One. This was followed with a challenging but interesting Hackerrank test. I was able to solve the tests but had trouble clearing 2 test cases on 1 specific problem. They got back pretty quickly with great results and set up a very well planned and structured next set of interviews. First was the behavioural round which had the typical behaviour question. The technical round after that had you present your technical skills (which I personally think is the best way to have you showcase your strengths). Through out the presentation there are relevant questions asked. Then they discuss the Hackerrank test and also pose some interesting challenges based on how you structured your code. The interviewers definitely had very good knowledge and the questions they asked were practical and made you think. I have attended interviews with other companies and get a little pit off when the interviewer starts asking bookish questions. This interview was nothing like it. After these rounds the recruiter was in touch constantly and kept providing feedback on how things were progressing and what was pending. Overall I was super impressed. Every step was well planned and handled very professionally.

      Interview questions [7]

      Question 1

      What is a closure in JavaScript
      1 Answer

      Question 2

      Digest cycle related questions in Angular
      Answer question

      Question 3

      Design Patterns related questions in Java
      Answer question

      Question 4

      Some questions on Netflix OSS
      Answer question

      Question 5

      Default time format in JavaScript
      Answer question

      Question 6

      How JavaScript does certain operations
      Answer question

      Question 7

      Handling cross domain requests in Springboot
      Answer question
      1

      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