Two rounds, both technical. First rounds, asked about technical C commands. Second round, resume questions and one coding problem. identify a loop in a singly linked list. Solved with hash-set, asked for another way to have constant space, used Floyd cycle detection algorithm.

Back to back rounds of interview with two staff engineers. Both technical, involving a mix of behavior and technical challenges that involves system design and basic C coding. The coding problems are leetcode easy level of difficulty.