I applied through an employee referral. The process took 4 weeks. I interviewed at Meta
Interview
One call with the recruiter and one phone interview with a Data Scientist and moved on to on-site interview with 5 rounds of interviews. In the phone interview, it's mostly brainstorming metrics and an SQL query question. The 5 rounds of on-site interviews includes 2 SQL, 2 A/B testing and 1 Math interviews.
Interview questions [1]
Question 1
If there's a new feature that attracts more pop stars to use it, how do you evaluate whether this feature is successful or not?
I applied online. The process took 2 months. I interviewed at Meta (London, England) in Jan 2018
Interview
Applied for graduate scheme in London. Got a call from a recruiter. Then online interview with data scientist, lastly 5 on-site interviews in day. Questions on product sense, statistics, SQL, analytical reasoning.
Interview questions [1]
Question 1
A product will be launched for 1000 people. Everyday 10 people will see it. What's the average number of waiting days for a person to see the new product?
I applied online. The process took 2 months. I interviewed at Meta (London, England) in Jan 2018
Interview
Applied online and received a call back from a recruiter within about two weeks. There was an initial online coding interview and another call with the recruiter. The onsite was schedule about month later and was an all-day affair with a series of interviews with different members of the team, including a one-on-one with the team lead, then technical interviews on on data science methods and causal inference, software engineering, basic probability (like coin flipping problems), and data exploration.
Interview questions [4]
Question 1
You have a set of pairs of integers representing intervals (inclusive). What is the integer or set of integers that are included in the largest number of the intervals?
You have a length-n list of pairs of integers, such as (1,2) (3,4) (6,8). Write a (recursive) algorithm that produces every possible n-digit concatenation of these numbers (e.g., 136, 138, 146, 148, 236, 238, 246, 248).