Palo Alto Networks

First interview: (30 mins) Intro interview with a team lead. Task to do offline. Second interview: (1.5-2 hrs) Interview with the team lead and group manager. Third interview: (1 hr) HR.

I was reached by email from the recruiter several times. Then, I received two calls from the manager and an engineer, discussing technical details. After several days, I was confirmed for an onsite interview. The onsite interview was tough, lasting

The team lead was very nice. They described the company and the product. Then, they asked some architecture questions. Following that, there was one technical question: shuffling an array, then optimizing that algorithm. The overall experience wa