Meta Network Reliability Engineer interview questions

First technical phone screening with HR, few questions about network in general and python. If you past you go for next round which is a 1 hour network interview and another hour coding. If you pass this round you go for the loop interview, another 5 interviews with the hiring manager, another network, one more coding, soft skills and performance. It is a bit frustrating getting to the last round and fail during a coding interview when you already passed the previous one.