First you have a call with a very nice recruiter. They really invest alot in helping you prepare for the interviews. They want you to know what is expected of you and succeed.
First thing is an onsite with a medium level leetcode question.
Then comes the onsite with 5 interviews: 2 problem solving, 1 behavioural 1 system design and 1 ML design.
All of the interviewers without exception were very nice and respectful. Facebook will send you material to arrive well prepared to the interview day.
The reason why my my overall experience was negative is because:
1. The emphasis they put on system design. Vast majority of people in ML/Data science don't know these things and don't design web crawlers or login systems. Candidates are expected to prepare especially for something they will unlikely be using in facebook and no other place in the industry will ask then in an interview. I was rejected mainly because of this interview (not my opinion, I was told by the recruiter)
2. One of the problem solving interviews was extremely unprofessional. The interviewer and I were first talking about the initial "easy" solution and mine and his ideas were different. It took me some time to convince him my idea was correct and then we invested more time in his "bruteforce" solution only to come up to the conclusion his algorithm to the question he was asking was wrong. All of this debate took about half of the coding time throwing the entire process into a race to come up with a good solution + coding. While I did get some help (while under pressure because of the beginning of the interview) I was able to solve the question correctly. In the feedback conversation I understood this interview went so-so.
I was eventually rejected because of the final outcome of these two interviews (the rest went well)
Applied online. Received a recruiter screen within two weeks covering background and role fit. Followed by a technical phone screen with coding (LeetCode medium-hard, arrays/graphs). Then a virtual onsite with 4 rounds: 2 coding, 1 ML system design (recommendation/ranking system), and 1 behavioral. Interviewers were professional and gave time to ask questions. Results communicated within a week post-onsite.
Acudí a una entrevista en Meta (Londres, Inglaterra)
Entrevista
First stage was a screen round with behavioral and 2 leetcodes, one medium one hard, 15-17 min each. If selected, loop is 4-6 interviews. 2 desgin, 2 coding, 1 behavioral.
Preguntas de entrevista [1]
Pregunta 1
idiotic questions that can't be answered in depth in 35 minutes design, like "your solution isn't going to work, how will you handle it?" yea no sht this is a baseline bro, wait 15 seconds and ill talk about the optimal one.
Me postulé a través de un reclutador. Acudí a una entrevista en Meta (Londres, Inglaterra)
Entrevista
Standard Meta process.
1. Recruiter Call
2. Screening Call
3. Onsite Calls -4 rounds (2 coding, 1 ML design, 1 behavioral)
Interviews were all nice except for behavioral. (wouldn't hurt to speak anything apart from okay-okay)
