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      Capital One

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      Software Engineer Interview

      31 Oct 2015
      Anonymous employee
      Plano, TX
      Accepted offer
      Positive experience
      Average interview

      Application

      I applied through university. The process took 2 weeks. I interviewed at Capital One (Plano, TX)

      Interview

      First Round: on campus at my university, 30-45 minute behavioral interview My interviewer was friendly. She asked what position within the technology development program I would be interested in, and asked some typical behavioral questions concerning conflict resolution and learning from mistakes. Second/Final Round: on site in Plano, 3 hour long interviews before lunch with one one hour break in between -Interview 1: Job Fit/Technical (3 Questions) -Interview 2: Case Study (1 Question) -Interview 3: Behavioral (3 Questions) Each of my interviews here were one on one, and my interviewers were very kind and willing to offer advice at any point in the problem solving process when needed. I ate free lunch in the on-site cafeteria with some other potential hires and an engineering employee. After lunch was finished, I spoke to my recruiter, who proceeded to offer me a job! I had a great overall interview experience with Capital One.

      Interview questions [1]

      Question 1

      Implement a function for determining the validity of a string. The string is valid if parentheses are correctly distributed within the string.
      8 Answers
      7

      Other Software Engineer interview reviews for Capital One

      Software Engineer Interview

      3 Jun 2026
      Anonymous interview candidate
      No offer
      Neutral experience
      Difficult interview

      Application

      I interviewed at Capital One

      Interview

      4 rounds of interview including coding , design , case study, behavioral after clearing the code signal assesment. Coding was medium hard of 2 questions each. case study and system design was difficult.

      Interview questions [1]

      Question 1

      focus on designing and case study
      Answer question

      Software Engineer Interview

      20 May 2026
      Anonymous interview candidate
      No offer
      Neutral experience
      Difficult interview

      Application

      I interviewed at Capital One

      Interview

      This took a bit longer than expected, stretching over several weeks. The technical rounds were intense, featuring an LRU cache implementation and a problem on detecting duplicate transactions within a 60-second window. I was nervous at first, but it clicked for me when I realized I had practiced a similar approach on PracHub just days before. Unfortunately, I didn’t receive an offer in the end, but the experience was a solid learning opportunity. The behavioral questions felt straightforward, so I wish I had made a stronger impression in the technical segments.

      Interview questions [2]

      Question 1

      Implement an LRU cache with get and put operating in O(1)
      Answer question

      Question 2

      Given a stream of transactions, detect duplicates within a 60-second window
      Answer question

      Software Engineer Interview

      14 Apr 2026
      Anonymous employee
      Accepted offer
      Positive experience
      Average interview

      Application

      I interviewed at Capital One

      Interview

      Un proceso largo, pero sin mucha complicación en el proceso. Empresa atenta en todo momento a dudas y disponibilidad de tiempo para las entrevistas. Exámenes con temas sencillos y complejos. Variedad en los ejercicios