I applied online. I interviewed at X (San Francisco, CA) in Feb 2021
Interview
30 mins coding interview. A simple question about data manipulation in Python. The question isn't hard, but the interviewer skipped over the example, so it was hard to understand the concept being asked about.
Interview questions [1]
Question 1
Count the number of actions by all users within a given time frame.
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.
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.
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.
