I applied online. The process took 3 weeks. I interviewed at Meta in May 2015
Interview
Got a phone screening, followed by two phone interviews. The entire process went quicker than I thought. The interviews were difficult but fair. I definitely prepared a lot beforehand (brushing up on knowledge of Linux, systems, networking, etc).
I got an offer without doing an onsite, which I don't think is typical for Facebook.
Interview questions [1]
Question 1
Phone screening was general system stuff: DNS, TCP, CLI tools, etc.
First phone interview was coding based.
Phone interview was very linux-y, system calls, signals (term, kill, etc), load vs cpu util. Also stuff about general cs.
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
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