A lot of people were approached at career fairs. But if you were not there was first a phone interview with the HR recruiter, then a very odd "video chat" like interview where questions come up, you get 20 seconds, then the video starts recording and you have to answer the question in under 2 minutes. You are looking at your own reflection the whole time, which can sync someone out. If you get past that round you then get another call to set up the face to face interview. If the first face to face (1:1 or 2:1) goes well. The will get a call from one of managers for a second interview. After that you will hear if you are offered the job, pending passing a background check and drug screening.