It was four rounds. First was a screening email, then a recruiter call. Next was a video interview with the hiring manager. If you make it to the last stage, it'll be a video or in person panel interview with the development team.
I applied online. The process took 1 week. I interviewed at Activision Blizzard in Apr 2021
Interview
I applied online and was given a per recorded interview with 8 questions 5 being the normal how did you find us, why do you want to join us, then two questions being programming tests and then an IQ test
Interview questions [1]
Question 1
Two Programming tests. One based on a loop and the other based on user input