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I had a loop with four interviews: one behavioral, two algorithm, and one system design. They explained the problems clearly and provided me with feedback as I was explaining and working on the solutions.

General FAANG Interview Experience * Recruiter call * Optional: One mock interview (2 LeetCode questions in 45 minutes) * One screening round (2 LeetCode questions in 45 minutes) * Three technical rounds (2 LeetCode questions in 45 minutes)

This is way too long. If you don't follow up, the recruiter might forget you ever applied, or sometimes even that they contacted you in the first place. Overall, once you reach the on-site stage, things tend to go smoother.