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      Data Scientist Interview

      Apr 29, 2019
      Anonymous interview candidate
      No offer
      Neutral experience
      Easy interview

      Application

      I applied online. The process took 2 weeks. I interviewed at Meta in Apr 2019

      Interview

      I had an initial call with a recruiter, where I was asked one easy question about a skewed mean vs. median. I then had a 45-minute technical phone interview with a Data Scientist Manager. One very easy SQL question, followed by about 30 minutes of just product analytics questions. I thought it went really well - the conversation went smoothly, good energy, I gave detailed answers and have product knowledge and enthusiasm from using the products myself. I was really excited about it, but then I just heard I didn't get past this round. Not sure why, I emailed asking for any feedback, but haven't heard yet. Red flags: the video aspect of the BlueJeans app didn't work, so we couldn't see each other; interviewer came off as slightly snobby and arrogant and told me she didn't read past the first page of my resume (I have a two-page resume, - I know there is debate about that, and I've heard cases made for either one-page or two-page, but now I'm strongly considering condensing mine to one page), but I guess they can afford to be that way, as they are facebook... (eye roll). Every time I've spoken with a Facebook data scientist in recent years, either in interviews or informally, there is a "you're lucky to speak with me, I know I'm in a privileged position and I love holding that over your head" vibe... not at all a humble stance or a sense that everyone has things to offer, not *only* people who work at Facebook. It's confusing to have a *technical* phone screen and to answer all the *technical* parts reasonably and correctly, and ... not make it to the next round, at which time rejection can be anything from personality fit to company needs. Being rejected at a technical round after doing well on the technical aspect is... odd.

      Interview questions [1]

      Question 1

      Given a table with columns country (with two-letter country abbreviation), count of requests sent, percentage of requests sent failed, condense down to this data grouped by country: country (one row per country), total count of requests sent, total count of requests sent failed.
      7 Answers
      1

      Other Data Scientist interview reviews for Meta

      Data Scientist Interview

      Jun 19, 2026
      Anonymous employee
      Accepted offer
      Neutral experience
      Difficult interview

      Application

      I interviewed at Meta

      Interview

      Tough interview overall—definitely not what I expected. The technical rounds were intense, particularly when they had me design an A/B test for the News Feed ranking algorithm. I had to discuss metrics and sample sizes in detail. Lucky for me, the time I spent on PracHub right before the interview helped me nail that deep-dive question as it mirrored what I practiced. The behavioral questions felt standard but were still challenging. After a whirlwind process, they extended an offer, which I happily accepted.

      Interview questions [1]

      Question 1

      Design an A/B test to evaluate a new ranking algorithm for the Facebook News Feed. Walk through metric selection (engagement, time-spent, MSI, well-being), unit of randomization given network effects between friends, sample size and power calculations, how you'd detect novelty effects vs. true lift, and how you'd handle a guardrail metric regressing while the primary metric is up.
      Answer question

      Data Scientist Interview

      Jun 11, 2026
      Anonymous employee
      Cambridge, MA
      Accepted offer
      Positive experience
      Difficult interview

      Application

      I interviewed at Meta (Cambridge, MA)

      Interview

      Total 7 rounds: first round for resume screening, second for technical screening, then for on-site virtual with 4 interviews back to back, then hiring manager round after team matching and then salary negotiation with HR

      Interview questions [1]

      Question 1

      Meta’s evaluation rubrics focus heavily on "Product Thinking over Fancy Math". Interviewers want to see if you can operate like a product owner with an analytical mindset, navigating messy scenarios affecting billions of users
      Answer question

      Data Scientist Interview

      May 23, 2026
      Anonymous employee
      Menlo Park, CA
      Accepted offer
      Neutral experience
      Difficult interview

      Application

      I interviewed at Meta (Menlo Park, CA)

      Interview

      The Interview Process is very structured - First Tech Screening round - 45 mins (usually can extend a bit depending on the interviewer) - 2 SQL Questions ( Medium to Hard ) - based on Joins Full Loop - 4 rounds 45 mins each. - SQL - Behavioral - Analytical Execution - stats & prob, A/B testing, case study - Analytical Reasoning - Case study

      Interview questions [1]

      Question 1

      Questions on Bayes Theorem, Probability distribution, etc.
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