I applied through an employee referral. I interviewed at Meta (Mountain View, CA)
Interview
Code screen was code signal and pretty standard: 2 super easy questions then 2 harder questions, one about memory allocation and 1 array based problem. They weren't easy but the problems weren't hard to understand and i dont believe they had hidden test cases
Interview questions [1]
Question 1
make functions to alloc and free memory given an array of "available memory" and a list of alloc and free commands to run
I applied online. The process took 2 months. I interviewed at Meta
Interview
7 Interviews, didn't receive an offer after the final round. Time-consuming process, which includes multiple rounds of technical interviews (design, coding, behavior, etc.) and a 1-hour research talk. The team leader was unpleasant to interact with.
recruiter call, technical interview, research interview, and job talk (presentation), hiring manager interview, everything was organized in the website so it was easy to navigate through the process, and recruiter was always responding super quickly