I applied through my school's career services and was contacted by a recruiter a few weeks later. She set up a phone interview that she did herself. It was a technical interview, asking questions about data structures, algorithms, and runtime analysis. It wasn't hard. The questions were mostly about trees, hash tables, and a couple sort algorithms. She was nice at first when she asked me about my experience in the field (school projects and internship experiences) but she caught me off guard when asking the technical questions and I asked for a minute to think about the answer. Even though she said yes, a moment later she'd say "Would you like me to move on to the next question?" as if I didn't know the answer, but I did. So I'd try to explain to her what I thought at that moment and if I missed anything in my explanation, even the smallest thing, she'd cut me off to point that out and moved on to the next question. Fortunately, I did quite well. By the end of the week she emailed me that I'm through to the next round and that another recruiter would contact me with the details. After a few weeks, I didn't hear back from them so I emailed her. Apparently she had been snatched up from Facebook to a new startup company and left her files to other recruiters who didn't have time to go through all. It took me about a month (through the help of friends who also interviewed with Facebook and school's career services) to finally get ahold of a Facebook recruiter. She apologized and set me up with another interview right away. A software engineer called me a few days later and we used a website that let me code and he'd be able to see it. The second interview was just one coding problem (make sure you're fast and code bug-free programs!) and then we spent about 15-20 minutes talking about Facebook itself. I thought I did well and hit it off with the interviewer. But a few days later I got an email saying that I'm not through.

There were an excessive amount of rounds with a high difficulty of questions for a new grad role. Everyone I spoke too was very friendly though! Study hard and you may be okay.