I applied through a recruiter. The process took 2 weeks. I interviewed at Meta (Londres, Inglaterra) in Nov 2014
Interview
First quick skype call, with general analytics related questions + little sql exercise.
Second round in person. A round of five separate interviews at Facebook HQ in Euston, each with a different flavour, some more general analytics/BI, some more technical (e.g. coding exercise, sql etc).
Some interviewers were very approachable and easy to talk to, some others much less. There was one case when I honestly thought the person interviewing me had something against me or was upset for some reason, as their behaviour was very rude and confrontational. I am a very peaceful person usually so I let it go.
Probably Facebook asked some random employees to come over from their HQ in the US to do these interviews in change of a little paid vacation in London. I suppose some of them were affected by the jet lag more than others.
Overall it was a good experience; it looked like the day was very well organised.
Interview questions [1]
Question 1
Imagine we see a lot of users filling up a form but not submitting it, why would it be the case and how would you use data to finding it out?
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.
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
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.
