I applied through college or university. The process took 4 weeks. I interviewed at Meta
Interview
They came to campus an hosted open office hours. It was an overwhelmingly positive experience at that point. I dropped my resume and was later (2 weeks) contacted by a recruiter; who scheduled a 45 minute interview with a SWE. The SWE seems distracted and was almost mad at me for logging in experimenting with text editor beforehand, which threw me off. Lesson learned - everyone can have a bad day, don't expect the up beat attitude characterized by the recruiters from every interviewing SWE.
The process is straightforward and designed to help us get to know each other. It moves through a few stages at a comfortable pace, involves conversations with several team members, and focuses on making sure it's a good mutual fit.
I applied through a recruiter. I interviewed at Meta
Interview
Had an initial recuriter call and then scheduled a coding round with 2 leetcode questions. Practicing Meta-tagged leetcode questions would help prepare for this round. Interviewers expect clear communication and code.
Generic LeetCode-style questions, many tagged as Meta, so extensive preparation is required to perform well in the technical interview. The experience varies significantly - some interviewers provide hints and guidance, while others expect candidates to solve problems independently with minimal assistance.