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    LinkedIn Data Scientist Interview Questions

    Interviews at LinkedIn

    36 Interview Reviews

    Experience

    Experience
    43%
    19%
    38%

    Getting an Interview

    Getting an Interview
    53%
    24%
    17%
    3
    3

    Difficulty

    2.8
    Average

    Difficulty

    Hard
    Average
    Easy

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    Helpful (1)  

    Data Scientist Interview

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

    Application

    I applied through other source. The process took a week. I interviewed at LinkedIn (Mountain View, CA (US)) in March 2014.

    Interview

    45 Minute phone screen. Multiple one one meetings and a lunch interview in the cafeteria with at least five employees. Cafeteria was completely chaotic. Very difficult for the group to find seating together. Once seated was peppered with questions by everyone. Lunch should have been in a conference room if it was going to be part of the process. Overall not a very difficult interview, just was not well organized.

    Interview Questions

    • Seemed every interviewer asked a variant of an A/B test for the homepage.   1 Answer

    Other Interview Reviews for LinkedIn

    1. Helpful (3)  

      Data Scientist Interview

      Anonymous Interview Candidate in San Francisco, CA (US)
      No Offer
      Positive Experience
      Average Interview

      Application

      I applied through an employee referral. The process took a week. I interviewed at LinkedIn (San Francisco, CA (US)) in December 2017.

      Interview

      I was referred by a friend who is also a data scientist at LinkedIn. I had a one hour phone conversation with my friend's manager. The interviewer was nice and polite. Asked me two technical questions, one of which statistics and the other coding using an online platform. I haven't prepared at all before hard so didn't do well.

      Interview Questions

      • Given a random generator that produces a number 1 to 5 uniformly, write a function that produces a number from 1 to 7 uniformly or something like that.   7 Answers

    2. Helpful (4)  

      Data Scientist Interview

      Anonymous Interview Candidate in Sunnyvale, CA (US)
      Declined Offer
      Positive Experience
      Average Interview

      Application

      I applied through an employee referral. The process took 3 weeks. I interviewed at LinkedIn (Sunnyvale, CA (US)) in November 2017.

      Interview

      one HR screen interview about your background, experience, following process.
      one Technical Phone Interview about SQL , case study, and programming ability.
      one onsite interview about programming ability, data analysis ability and experience sharing.

      Interview Questions

      • How many active members in LinkedIn right now? What is the business model at LinkedIn? Basic SQL as long as you finished most of questions in Hackerrank.   1 Answer
      3. Join the LinkedIn team
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    3.  

      Data Scientist Interview

      Anonymous Interview Candidate
      Declined Offer
      Positive Experience
      Average Interview

      Application

      I applied through an employee referral. The process took 2 weeks. I interviewed at LinkedIn.

      Interview

      2 phone rounds, on site interview loop. Great recruiter who explained the status, provided feedback, and walked me through the next steps as well as how I should prepare for those next steps

      Interview Questions

      • Using a set of tables, how would we find out whether users have a certain feature on or off?   1 Answer

    4.  

      Data Scientist Interview

      Anonymous Interview Candidate in Sunnyvale, CA (US)
      No Offer
      Positive Experience
      Average Interview

      Application

      I applied through a recruiter. I interviewed at LinkedIn (Sunnyvale, CA (US)) in April 2019.

      Interview

      A recruiter reached out to me on LinkedIn(!) regarding DS roles. I spoke to him on the phone - standard HR round, finding best fit. I was told there will be two more phone screens - one SQL coding + another case study based. If I cleared them, next step is on-site. I spoke to one of the hiring managers in the DS team for the first coding exercise. A brief mutual intro and she said she will ask one or two SQL queries depending on time. 45 minutes was set for this. She started with a SQL question regarding LI page views data - how to gather info regarding activity of crawlers (probably not the right name, but I forget what she exactly used). I started writing the code and took almost all remaining time, but I could sense she wasn't happy with my answer. Not surprisingly, I never heard back from them :)

      Interview Questions

      • There is a table of page view data. Two columns: Member ID and time stamp. You can assume this is for a 24 hour period. Members vs. guests/visitors are differentiable via ID's. Have to come up with a method for determining which all activities are crawler related (and not my members) and write a query for the same as well.   Answer Question

    5. Helpful (18)  

      Data Scientist Interview

      Anonymous Employee
      Accepted Offer
      Positive Experience
      Average Interview

      Application

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

      Interview

      contacted by HR and then 1 round of phone screen with coding tests on sql. cover pretty basic thing. followed by on-site interview with 7 interviewers testing different areas. the interview was pretty comprehensive and covers almost all areas related to the job.

      Interview Questions

      • SQL, Coding (R/Python), Product Case, Machine Learning, Stats   2 Answers

    6. Helpful (8)  

      Data Scientist Interview

      Anonymous Interview Candidate in Sunnyvale, CA (US)
      No Offer
      Negative Experience

      Application

      I applied online. I interviewed at LinkedIn (Sunnyvale, CA (US)) in May 2017.

      Interview

      Recruiter phone interview followed by one technical phone round based on mostly SQL and R. Onsite interview for 5 hours with product managers and data scientist. Questions were mostly focused on A/B and one stats/probability round. Disappointed with the recruiter who didn't bother to give me the feedback in-spite of sending her multiple emails. The company providing recruiting platform needs to improve their recruiting process. Interview experience was good, though I am rating it as negative since I value feedback.

      Interview Questions

    7. Helpful (2)  

      Data Scientist Interview

      Anonymous Interview Candidate
      No Offer
      Positive Experience
      Easy Interview

      Application

      I applied online. The process took 1 day. I interviewed at LinkedIn in December 2016.

      Interview

      I talked to her about my project experience, she asked details in some machine learning algorithm though she's an HR. And we also talked about some creative questions. Overall she's a nice person to talk to and I thought it was a good conversation, however, it turns out later that she didn't think so.

      Interview Questions

      • Describe a previous project   2 Answers
      • How can you help to improve sales given a LinkedIn database   1 Answer

    8. Helpful (4)  

      Data Scientist Interview

      Anonymous Interview Candidate
      No Offer
      Negative Experience
      Average Interview

      Application

      I applied through a recruiter. I interviewed at LinkedIn in November 2016.

      Interview

      Phone call with a recruiter followed by a technical phone screen.

      The recruiter was nice enough but the interviewer had an extremely heavy accent that was nearly indecipherable and seemed distracted during the interview. He also seemed to be unfamiliar with the interview question or was not well-rehearsed and I could hear obvious paper flipping and presumably note checking in the background as he asked questions

      Interview Questions

      • What is the optimization problem for a SVM?   1 Answer

    9. Helpful (2)  

      Data Scientist Interview

      Anonymous Interview Candidate in Mountain View, CA (US)
      No Offer
      Negative Experience
      Easy Interview

      Application

      I applied online. The process took 2+ months. I interviewed at LinkedIn (Mountain View, CA (US)) in March 2012.

      Interview

      3 Telephonic interviews and 4 on-site interviews. Interview questions were not very difficult. In fact, between telephonic and onsite interviews lots of repeat questions were asked, which I thought was unprofessional. The whole process took more than 3 months. Overall easy / average interview. I did not get the offer.

      Interview Questions

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