I applied online. The process took 2 weeks. I interviewed at Pfizer (Guildford, England) in Dec 2015
Interview
Standard group exercise, competency based interview (tell me about a time...). Ice breaker (selling a pfizer product to the group). Interviewers were very friendly and there were 4 assessment days in total, each day twenty people were interviewed. so there were 72 positions and 80 people interviewed. Site tour was awesome, you get to see some of their offices, meeting rooms, their gym and their cantine. Make sure you present confidently for the group task (where you're given a scenario of a ship that breaks that and have to think about who to save and who not to save... standard).
Interview questions [1]
Question 1
Tell me about a time when you thought about the pros and cons of something in order to come to a decision?