I spoke to a recruiter at the career fair. The next day, someone from Amazon reached out to me and told me to apply and to let them know when I did so they could speed up the process. Amazon contacted me to take their behavioral survey. Within 3 days, I was invited for a interview with Amazon. They flew me out to a location and I took their case study/math flow. I also got a chance to go over my answers. I also had a behavioral interview that day (STAR method)