I applied through an employee referral. The process took 7 weeks. I interviewed at X in June 2020
Interview
Very friendly and positive experience, it has so many stages. Overall positive experience, recruiter is very nice and friendly and hiring manager is super helpful too. It requires a bit of preparation and practice, if you are not ready don't go there.
Interview questions [1]
Question 1
How would you do an A/B test to add feature for twitter?
The recruiter got in touch to set up a screening call. I was asked basic questions concerning my background and my motivation. Then we had a coding challenge with a question I later found on LeetCode under the Twitter section for the last 6 months.
Case study was interesting; interviewer was previously from uber so some similar interview questions, techniques do apply, overall a good engaging exercise. Nothing to complain about. Overall it is okay
Interview questions [1]
Question 1
explain probability distribution, how to track cohorts, a/b testing, case study on casual inference, working sample codes based on sample user behavioural usage dataset.
Python Coding of data science algorithm. Python library fundamental knowledge questions.
Data structure and algorithms coding.
System design of distributed compute systems.
A behavioral question round.
Followed by a hiring manager round.