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      Capital One

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      Data Scientist Interview

      Jun 8, 2017
      Anonymous Interview Candidate
      New York, NY
      No offer
      Negative experience
      Average interview

      Application

      I applied through a recruiter. The process took 6 weeks. I interviewed at Capital One (New York, NY)

      Interview

      1. Hackerrank screen (4 basic questions timed) 2. Technical phone interview that went over credit card fraud case. Asked about what kind of model, features to engineer, false positive/false negative, regularization, and potential issues 3. Data challenge- NYC taxi data. Basic summary info, describe a distribution, derive a variable, build a model to predict tips, and a problem of your choice (viz, anomaly detection, optimization, and a couple other options) 4. Onsite- stats interview- they give you an analysis with a regression/CART model and 15 minutes to analyze, explain, and provide recommendations. They asked about correlations, multicollinearity, p-values, ANOVA table, and improvements. Behavioral- STAR questions 2 consulting case studies- one was the P&L on a credit card product. break even, profit, and how to improve profit. Job fit- met with a manager and they talked about the department, challenges, etc. This guy talked for an hour and may have asked one question about me Technical- asked some machine learning questions about random forest, regularization, map reduce, and derive some equations by hand. This was the only interesting part. I would not have wasted my time going through all this stuff had I known more about the actual position. They provided no information about the actual position and did not answer any questions about the actual work until the onsite. The projects they described didn't seem very interesting - some fraud detection, a search problem that matches logos to a billing statement, and gathering data on small businesses.

      Interview questions [9]

      Question 1

      Explain the bias-variance tradeoff.
      Answer question

      Question 2

      Write pseudocode for map reduce
      Answer question

      Question 3

      What does regularization do?
      Answer question

      Question 4

      Difference between random forest and gradient boosted tree.
      Answer question

      Question 5

      Describe a time you worked on a team.
      Answer question

      Question 6

      How do you learn something new?
      Answer question

      Question 7

      Are false positives or false negatives more important?
      1 Answer

      Question 8

      What is VIF (in regression output)?
      Answer question

      Question 9

      Interpret this ANOVA table.
      Answer question
      46

      Other Data Scientist Interview Reviews for Capital One

      Data Scientist Interview

      Jul 5, 2026
      Anonymous Interview Candidate
      McLean, VA
      No offer
      Neutral experience
      Easy interview

      Application

      I interviewed at Capital One (McLean, VA)

      Interview

      Only gone through the initial HR interview process so far. Waiting to go through OA and power day. Applied mid June. Got an answer end of June/ early July. Seemed like just a screening of the resume so far. Nothing substantial yet.

      Interview questions [1]

      Question 1

      Why are you leaving your old role/company?
      Answer question

      Data Scientist Interview

      Feb 4, 2026
      Anonymous Interview Candidate
      Dallas, TX
      No offer
      Negative experience
      Difficult interview

      Application

      I applied through an employee referral. I interviewed at Capital One (Dallas, TX) in Jan 2026

      Interview

      I had an interview with the hiring manager, and she started to ask about my CV and went through the details of each project, and also asked additional questions about each project, what would happen if we do this or that

      Interview questions [1]

      Question 1

      She asked about RAG in LLM
      Answer question

      Data Scientist Interview

      Dec 9, 2025
      Anonymous Interview Candidate
      No offer
      Negative experience
      Average interview

      Application

      I interviewed at Capital One

      Interview

      The recruiter call me and after a 30 min meeting with HR they set me up for interview with the manager, but no one showed up and they never responded my email

      Interview questions [1]

      Question 1

      general question about my resume
      Answer question