I applied through college or university. I interviewed at Meta
Interview
Applied through a campus event and the recruiter there messaged me saying she was interested. Set up a 45 minute phone interview that was supposed to be a mix of behavioural and technical questions. There were zero behavioural questions and he jumped right into the technical portion. Unfortunately, his english was a little broken so it was hard to understand what he was saying. The recruiter was extremely friendly and was very prompt to answer any questions I had.
Interview questions [2]
Question 1
There is an array of N integers. Find if there are such indices 0 <= i < j < k < N: a_i + a_j + a_k = 0.
I applied online. The process took 1 week. I interviewed at Meta (New York, NY) in Nov 2017
Interview
Applied to NYC for Summer. Made it to first round interview. Was asked an array question involving binary search and a question regarding graph search. Did not move forward.
I applied online. The process took 3 weeks. I interviewed at Meta (Menlo Park, CA) in Oct 2016
Interview
Simple online interview. Problem was creative and not insanely difficult. Engineer who interned me was very positive and answered my questions about the culture. Recruiters get back to you quickly and have high communication rate.