I applied through university. The process took 2 weeks. I interviewed at Meta (Menlo Park, CA) in Sept 2012
Interview
I talked to a recruiter at school career fair. Got a 15-minute phone screening after 1 week, during which she asked me some background questions related to my resume, and told me a little about the position and the interview process followed by a few technical questions. The questions are pretty basic and easy. Then she scheduled an on campus interview for the week after. It was a 1-1 pure technical interview which lasted 30 min. I was asked a coding question which involved sorting and data structure. Nothing unexpected.
I applied through an employee referral. I interviewed at Meta
Interview
I was invited to take their OA about a week after applying, mostly consisted of leetcode easy and mediums. It was a pretty smooth process, with quick feedback. Good experience overall
Interview questions [1]
Question 1
Data structures and algorithms, leetcode style medium and easy
They ask the normal standard DSA questions that you would expect for an internship like LeetCode mediums. I think there were two rounds of technical interviews before the offer stage.
DS&A questions, interview is just that with only a couple mins of non technical. Need to be quick and fluent in standard leetcode easy-med, and have decent enough grasp to come up with good ideas to approach leetcode hards.
Interview questions [1]
Question 1
DS&A. Asked about how to merge 3 ordered array into ordered array. Then, how to generalise for k ordered arrays. Was okay, but need to be faster and have solution down as if you can do it in your sleep.