I applied through a recruiter. The process took 4 weeks. I interviewed at Meta
Interview
Recruiter found me on LinkedIn and asked me for a CV and my availability to talk the next week. I asked what would be covered in this first phone call and he said he would only discuss the roles he recruits for. He was nice and welcoming, but he surprised me with a few (basic) technical questions I was not expecting, given the previous information he provided about this call. I have got instant feedback about the phone screen, and moved to the next step, the coding interview.
Once again, recruiter was attentive and helpful. Coding questions were average on difficult, but appropriate to the time-window we have (about 20 minutes each). At the end, recruiter was open to questions about Facebook, his team, work balance, meetings schedules, and about the city he lives in.
It took, then, ten days to receive a vague feedback from Facebook stating that we were not going to move forward, despite my 'strong coding and communication skills'. I was a bit disappointed by the delay and the lack of details in the last responde I have got from them.
I had two screening rounds and 3 interview loop rounds, Meta leetcode questions, systems design can be extensive. Questions can be repeated so look out for all the available questions online. Systems debugging is a very important topic
Interview questions [1]
Question 1
Why Meta?
What are different internet web protocols
talk about internet.
Recuriter round then technical screen with an engineer that then final stage which is four rounds, 2 coding 1 system design and one behavioural, for Production Engineer the questions are often a mix of LC questions and practical file system operations
Interview questions [1]
Question 1
Reading input from file
BFS/DFS Basic Graph problems
There are 2 rounds, first has PE basics and coding, second has PE basics, coding and Behavioral. Learn linux, OS, Networking in detail. They dig deep into whatever u say. Coding is usually easy, prepare file parsing questions