I applied through a recruiter. I interviewed at F5 (Amsterdam) in Jan 2015
Interview
people: 1 hr 2 tech 2 fin. telephone conversation with 2 people than video chat with 3 people in 3 different occasions. 2 onsite visits and proposal from HR. I'm not sure how really process works as it was really confused and some times re-iterated . Some of the intrviewes was lack of skills with the questions that were asked. Some of them in master degree of knowledge.
I applied through an employee referral. The process took 4 weeks. I interviewed at F5 (San Jose, CA) in Aug 2019
Interview
I had 5 rounds of interviews. 4 of them were technical and the 5th was a lunch interview. The 4 technical rounds were taken by TAMs that will working once hired. The lunch round was casual/slightly technical
Interview questions [1]
Question 1
Thorough understanding of OSI layer. Very good knowledge of CDN, HTTP(S), TCP handshake