Really easy and hr manager was kind and proactive.
By the end the entire process was simple and relaxing.
The last step with the general manager was the same, I can say that in Perkin Elmer we are a family.
It was well managed interview process, it began with a brief HR interview and two technical rounds. the time consumed in decision making was more than 2 months. But at the end it was worth waiting.
The process took 1+ week. I interviewed at PerkinElmer
Interview
direct reference, call, personal interview, final selection (if your boss consider you as a poor guy with no brains), HR will send offer letter and you can join very next day.