I was personally screened by the hiring manager instead of a representative from HR and endured the absolute most uncomfortable interview experience of my career. The hiring manager belittled my experiences, kept asking more and more detailed questions about my internship experience a year ago while trying to get me to trip up, and made obnoxious buzzer noises when I answered her questions regarding GMP practices. The point isn't even that she falsely and loudly let me know that my answers were incorrect (I worked at a GMP facility before and had been trained), it was that she felt comfortable treating a potential hire in one of the most bizarre and unprofessional displays that I, or any of my contacts, have ever seen. This experience alone turned me off of Amgen and led to me declining an offer at a different facility as I cannot in good faith work for a company that hires and supports managers like these.