I applied online. The process took 2 weeks. I interviewed at Arista Networks (Vancouver, BC) in Jun 2018
Interview
Long 4 part email that includes some self-assessment questions and a sample question. You're given time after seeing the sample questions whether you want to schedule an interview or not.
Pretty good, not too complicated, was comfortable. Mostly LC questions, and was easy enough that you should be able to do it after doing NC150. good luck for the interview!
Starts with online test, then three rounds of technical interviews follow.
Not a lot of discussion, just go straight to the technical challenges which have to be solved in time
I interviewed at Arista Networks (Warsaw, Masovia)
Interview
By now I have had only first interview, that was focused on pure DSA. Despite that I would already recommend checking out gdb, cause it came in handy in my case.