I applied through a recruiter. I interviewed at Meta in Oct 2017
Interview
This was the first screen interview. Recruiter contacted me and spoke about the position and various teams, etc. Provided details of the entire hiring process. Then asked me to schedule date/time for the first phone screen technical interview.
Interview questions [1]
Question 1
Given two sparse matrices, how would you compute the dot product?
I applied through an employee referral. I interviewed at Meta (Menlo Park, CA) in Apr 2017
Interview
The HR asked my background, then followed by a technical phone interview. It was good, but they asked for a 2nd phone interview. Then invited to their headquarter. The restaurant was really good. Onsite 5 interviews. Two data structure and algorithm, two machine learning design and one behavioral.
Depending on the recruiters, it could be a little pain progress. Some recruiter is nice and follows up with you closely to understand very steps. Some may not respond to you for weeks. Also some wired is that it transferred to different recruiters. For me, I got 3 different recruiters before setting up onsite.
Interview questions [1]
Question 1
Not very difficult but need well prepared. Also some interviewer like go deep. Just need to keep calm and try to present best of you.