I applied through an employee referral. The process took 4 weeks. I interviewed at Alcon (Aliso Viejo, CA) in Jan 2013
Interview
One on one interview with 5 people ranging from junior to senior level. Interviewing went right through lunch with no lunch break. Make sure to take a snack. Last portion of interview involved tour of manufacturing area. Good time to remember all that you have researched about the company to keep the conversation rolling with the interviewer.
Interview questions [1]
Question 1
One of the interviewers gave me an electrical circuit to analyze. As I did not realize I would have to troubleshoot down to the component level I stumbled a few times during this phase of the interview. If I had known ahead of time I would have brushed up on transistor theory. Also, be able to explain near and far field diffraction.