Skip to contentSkip to footer
  • Community
  • Jobs
  • Companies
  • Salaries
  • For employers
      Notifications

      Loading...

      Elevate your career

      Discover your earning potential, land dream jobs, and share work-life insights anonymously.

      employer cover photo
      employer logo
      employer logo

      Capital One

      Engaged employer

      About
      Reviews
      Pay and benefits
      Jobs
      Interviews
      Interviews
      Related searches: Capital One reviews | Capital One jobs | Capital One salaries | Capital One benefits | Capital One conversations
      Capital One interviewsCapital One Machine Learning Engineer interviewsCapital One interview


      Glassdoor

      • About / Press
      • Awards
      • Blog
      • Research
      • Contact Us
      • Guides

      Employers

      • Free Employer Account
      • Employer Centre
      • Employers Blog

      Information

      • Help
      • Guidelines
      • Terms of Use
      • Privacy and Ad Choices
      • Do Not Sell Or Share My Information
      • Cookie Consent Tool
      • Security

      Work With Us

      • Advertisers
      • Careers
      Download the App

      • Browse by:
      • Companies
      • Jobs
      • Locations
      • Communities
      • Recent posts

      Copyright © 2008-2026. Glassdoor LLC. "Glassdoor," "Worklife Pro," "Bowls" and logo are proprietary trademarks of Glassdoor LLC.

      Company Bowl sample

      Want the inside scoop on your own company?

      Check out your Company Bowl for anonymous work chats.

      Bowls

      Get actionable career advice tailored to you by joining more bowls.

      Followed companies

      Stay ahead in opportunities and insider tips by following your dream companies.

      Job searches

      Get personalised job recommendations and updates by starting your searches.

      Machine Learning Engineer Interview

      17 Feb 2019
      Anonymous employee
      Tysons Corner
      Accepted offer
      Negative experience
      Average interview

      Application

      I applied online. The process took 2 months. I interviewed at Capital One (Tysons Corner) in Feb 2019

      Interview

      First, I talked with the hiring manager about the team and role. Second, I did a data science take-home challenge. (Some may claim the process takes 4 hours, but I doubt that number is anywhere close to the empirical mean.) Then I did a full day of onsite interviews (5 I think). I got feedback saying I did well during the interview; however, the offer was for a role below what we discussed in advance. It doesn't really matter if this was an intentional bait and switch or some sort of internal mixup -- in either case the hiring manager overpromised and underdelivered. This showed that I could not rely on the hiring manager. Based on this example and two earlier specific instances, I lost confidence in him. I recommend this: listen closely and trust your instincts. If you are a motivated and driven software engineer, I would advice against going to work at Capital One. I know many people in my network that recommend against it. Most talented people I've known at C1 have since moved on to other places. Look at it this way: if you are going to work for a for-profit organization in the financial services industry, they should pay competitively. C1 does not. C1 will claim they differentiate in terms of work-life balance, but such a claim is exaggerated and certainly not universal. Be sure to compare such claims against other companies you are considering -- many big companies I know aren't really that different. There is one positive aspect about C1: use their interviews as practice. The interviewers I met were nice people. The interviews aren't particularly challenging relative to top Silicon Valley interviews, so it can be a useful experience if you have a day to spare.

      Interview questions [1]

      Question 1

      I'm not going to share the interview questions I got, because I don't think doing so is ethical. I will say that I think the questions were mostly reasonable. Study computer science, systems architecture, and machine learning. Don't forget to practice your behavioral interviews; e.g. teamwork, conflict, and so on.
      Answer question
      2

      Other Machine Learning Engineer interview reviews for Capital One

      Machine Learning Engineer Interview

      29 May 2026
      Anonymous employee
      Accepted offer
      Positive experience
      Easy interview

      Application

      I interviewed at Capital One

      Interview

      Connected with a former colleague who referred me to Capital One, and it turned out to be a great fit. The initial chat was pretty straightforward, discussing my background and experience. In the technical round, I was asked to design a fraud detection model and explain concepts like the bias-variance tradeoff. Lucky for me, I had just reviewed similar questions on PracHub, which made me feel ready. After a couple of behavioral interviews, I received an offer, which I happily accepted. Overall, the process was smooth and welcoming.

      Interview questions [3]

      Question 1

      Walk me through how you would design a credit card fraud detection model end to end
      Answer question

      Question 2

      Explain the bias-variance tradeoff and how you handle it in production models
      Answer question

      Question 3

      How would you handle severe class imbalance in a fraud dataset
      Answer question

      Machine Learning Engineer Interview

      24 Jan 2026
      Anonymous interview candidate
      San Francisco, CA
      No offer
      Neutral experience
      Average interview

      Application

      I applied online. I interviewed at Capital One (San Francisco, CA) in Jan 2026

      Interview

      Online technical assessment with 4 questions. Had to screenshare and record myself so they could verify that there was nobody else in the room and that I wasn't using external resources.

      Interview questions [1]

      Question 1

      One of the questions was a stateful bit maniplulation question, You were given an input binary array and a list of commands that either 1. Converted the leftmost bit to 1 2. Turns a bit at a specified index to 0 Your goal was to execute the commands in sequence
      Answer question

      Machine Learning Engineer Interview

      18 Nov 2024
      Anonymous interview candidate
      San Jose, CA
      No offer
      Positive experience
      Average interview

      Application

      I applied online. I interviewed at Capital One (San Jose, CA)

      Interview

      I applied after some days, got the call from recruiter then the second round was with manager discussing mostly resume, role requirements and some technical questions. Third round is with the manager and one of the team member the team member asked only technical question.

      Interview questions [1]

      Question 1

      What happens when you ask chatgpt something?
      Answer question
      1