Google Quantitative Analyst Interview Questions | Glassdoor

Google Quantitative Analyst Interview Questions

Updated Feb 10, 2017
55 Interview Reviews

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Helpful (70)  

Quantitative Analyst Interview

Anonymous Interview Candidate
No Offer
Positive Experience
Difficult Interview

Application

I applied through an employee referral. I interviewed at Google.

Interview

I have a friend there. I sent him my CV and after a week or so a google recruiter reached out to me.

At first they sent me by email like 10 or so questions. I had to write the answer and then send it back to them. Questions were the typical stuff you would get in an HR interview. They focus on the languages you know and description of a project. SQL and R seem to be the main languages they look for, I knew it from my friend already so I heavily targeted my answers towards those.

After this, they assigned me to a specific team for the recruiting process. It was SMB ads.

Then they sent me a data challenge. Nothing particularly hard. I had to send it back within 3 hrs. There are a few online resources for takehome challenges and this was definitely on the easy side compared to what I used to prepare.

Then they booked my trip to SF for a 1 day of interviews. Lots of stat questions: estimators, different distributions, and linear and logistic regression in details. No puzzles, which surprised me cause I heard so much about google puzzles (I even bought and practiced so much on that wall street book).

I didn't get the job, but the experience was very positive. I think they look for statisticians more than general quant people with some stat knowledge like me.

Interview Questions

  • A questionnaire, a takehome challenge and lots of stats questions. Know well linear regression and logistic regression. For instance, they ask you to derive the OLS formula on the board.   2 Answers

Other Interview Reviews for Google

  1.  

    Quantitative Analyst Interview

    Anonymous Interview Candidate in New York, NY
    No Offer
    Positive Experience
    Average Interview

    Application

    I applied through college or university. The process took 4+ weeks. I interviewed at Google (New York, NY) in November 2016.

    Interview

    Resume screening, and phone interview scheduled in 4 weeks. Process a bit long.

    Talked to other friends who got interview for the same position yet the interview questions were completely different. Pretty much depending on the interviewer. My interviewer was kind and passionate about his work. He explained everything clearly and asked great questions to challenge your project. So the interview process was overall very rewarding.

    Yet it seemed to me that the interviewer deliberately hid his discontent about your project. It is good in the sense of respecting your answer and your feelings, but "bad" in the sense of giving you the false hope.

    HR very helpful, kind and responsible. Rejected timely.

    Interview Questions

  2. Helpful (5)  

    Quantitative Analyst Interview

    Anonymous Interview Candidate in Mountain View, CA
    No Offer
    Negative Experience
    Difficult Interview

    Application

    I applied through a recruiter. The process took 3 weeks. I interviewed at Google (Mountain View, CA) in October 2016.

    Interview

    A Google recruiter contacted me for the role initially and set up a "phone" interview for a week later. The "phone" interview was in fact conducted through Google Hangout, and the person on the other end started 15 minute late - not a good sign. He was very apparently not interested in interviewing me at all. He spent the first 5 minutes looking at my resume without asking me anything, resulting in me trying to find things to say to fill the void.

    He then started asking technical questions from a list he had. This person paid no attention to me or my answers at all throughout, typing away on his other computer (I could see it in the video) while occasionally giggling about whoever knows what funny things he saw. It would take him 15 seconds to realize I have stopped talking. He also just ignored any follow-up questions I had, essentially taking me waiting for his response as a signal that it's time to throw out the next question. I received no feedback whatsoever on my answers during the interview, and at the end the person simply said (quote) "A recruiter will contact you. Bye" and hang up. Did not say anything like thank you, and did not even leave me the time to say "Bye."

    Overall extremely rude and unprofessional interviewer, and I got the expected rejection call a few days later. The recruiter was very nice, but they really need to work on what kind of people are allowed to interview others and represent the company. I wouldn't work here along this person even given a great offer.

    Interview Questions

    • Brainteaser-level probabilities, then a case question about a google product.   Answer Question
  3.  

    Quantitative Analyst Interview

    Anonymous Interview Candidate in Mountain View, CA
    No Offer
    Neutral Experience
    Average Interview

    Application

    I applied through a recruiter. I interviewed at Google (Mountain View, CA) in September 2016.

    Interview

    google interview has three steps. one screening interview, one phone interview, failed on on-site interview. they will pay for on-site expenses, including flight and hotel. overall experience is good, they are looking for statisticians not data engineering.

    Interview Questions

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  5. Helpful (7)  

    Quantitative Analyst Interview

    Anonymous Interview Candidate
    No Offer
    Neutral Experience
    Difficult Interview

    Application

    I applied online. The process took 4 weeks. I interviewed at Google in August 2016.

    Interview

    I submitted my resume online, corresponded over e-mail with a recruiter, then spoke to her on the phone, then spoke to a second-year QA on the phone, then had a Google Hangout with a more senior QA. I specifically applied to a listing for YouTube, but the recruiter told me there is one hiring process for all Google/Alphabet quantitative analyst openings and that they'd figure out exactly which part I'd work for after they decided to hire me. The recruiter was very prompt in scheduling interviews. Unfortunately, what she told me to expect was mostly wrong. She told me I should prepare to solve statistics problem in Python or R, whichever I preferred. She said there would be no derivations of statistics results, just using those results to solve problems. Given how specific and confident her guidance was, I was disappointed by how completely backwards it turned out to be. Between two technical phone/Hangout interviews, I wasn't asked to code anything. I was only asked to derive various known equations. The questions were perfectly reasonable to ask and the interviewers were very friendly, though. The recruiter also said there would only be one phone/Hangout interview, but there were actually two. Nothing in the content of the interviews was a problem, but for a company the size and age of Google the process seemed disorganized and ad hoc.

    Interview Questions

  6. Helpful (3)  

    Quantitative Analyst Interview

    Anonymous Interview Candidate
    No Offer
    Neutral Experience
    Average Interview

    Application

    I applied through a recruiter. I interviewed at Google in August 2016.

    Interview

    Was contacted by linkedin recruiter. Did initial questionnaire about programming and big data experience. They set up a google hangout interview - did preparation with recruiter to have computer set up and studied suggestion material (by recruiter). Interview happened via phone-call (not video). Was contacted shortly after saying they did not want to move forward.

    Interview Questions

    • Talk about your programming experience and packages you use.   Answer Question
  7. Helpful (40)  

    Quantitative Analyst Interview

    Anonymous Interview Candidate
    No Offer
    Positive Experience
    Average Interview

    Application

    I applied online. I interviewed at Google.

    Interview

    It is phone screening, and asked me two questions which are put below. The interviewer is nice, and kindly describe the problems. I suppose the first question is very tricky, I involved in Bayes formula for a long time, so there is not much time for the second one. After the interview, I realized that there is no need to use Bayes formula at all.

    Interview Questions

    • 1. 100 students, make survey cheat/not cheat, student toss a coin, if head, tell truth, if tail, toss again, if Head then yes, if tail then no. 30 students answer yes, Q: how many student cheated?

      2. Given an array, use bootstrap method to get the var of mean (I used R).

      3. Can you write 2 in one line within function? ( so use apply() )  
      5 Answers
  8. Helpful (5)  

    Quantitative Analyst Interview

    Anonymous Interview Candidate
    No Offer
    Positive Experience
    Average Interview

    Application

    I applied through an employee referral. I interviewed at Google.

    Interview

    A recruiter is in charge of your interview the whole process. One phone/screen interview and one onsite. Four one-to-one interviewers onsite. All technical questions plus some very specific questions about your project. These are questions at phone/screen.

    Interview Questions

  9.  

    Quantitative Analyst Interview

    Anonymous Interview Candidate in San Francisco, CA
    No Offer
    Positive Experience
    Difficult Interview

    Application

    I applied online. The process took 2+ months. I interviewed at Google (San Francisco, CA) in July 2016.

    Interview

    There were one email, one phone screening, one tech phone interview and one on-site interview comprised of four tech interviews and one chance to talk to the employer during lunch time. The staff were very nice, the technical people are also easygoing, they are knowledgable and trying to guide me during the process.

    Interview Questions

    • technical stuff covering a lot of areas, very comprehensive   1 Answer
  10. Helpful (1)  

    Quantitative Analyst Interview

    Anonymous Interview Candidate in Mountain View, CA
    No Offer
    Positive Experience
    Average Interview

    Application

    I applied through an employee referral. The process took 3+ months. I interviewed at Google (Mountain View, CA) in June 2016.

    Interview

    An employee send them my CV and a recruiter contacted me the next day with a questionnaire of 13 questions asking to describe a project, what language I use etc. Questions that are typical in an HR interview. Then they moved me to a phone screen. The interviewer was very friendly asked me in the beginning about the research in my PhD and the 3 questions, one probability question, one coding questions and then described a scenario and we brainstormed on this; ended up a two-sample proportion hypothesis test. After a few days they moved me to an on-site interview that it took a while to schedule though. The on-site included 4 interviews, some of them heavily on the probability and statistics side (you must be well prepared!), on practical problems and some coding questions as well. All interviewers were very friendly and down to earth!

    Interview Questions

    • Simulate a bivariate normal   Answer Question
    • Two-sample hypothesis testing, GLM, multicollinearity, experimental design, Bayes Theorem   Answer Question
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