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      Optics Hardware Engineer Interview

      Apr 14, 2011
      Anonymous Interview Candidate
      Mountain View, CA
      No offer
      Positive experience
      Difficult interview

      Application

      The process took 3 weeks. I interviewed at Google (Mountain View, CA) in Mar 2011

      Interview

      A Google technical recruiter found my resume on LinkedIn and asked if I were looking for new employment opportunities. After speaking with her and a second engineering recruiter about where I am living, what am I doing, etc., we set up a phone interview with an Optical Engineer in the group. Within 30 seconds, she jumped right into asking technical details about my work and what I had done on a particular project. She proceeded to ask about my optical modelling experience, and how I would model certain problems within that project. She eventually asked textbook oriented questions about Young's double slit experiment, the difference between two radiometry terms, and how I would model the human eye in software. I did not think I performed well on this interview but surprisingly got myself a second phone screening, but this time with a computer programmer. He asked me about my work (not the same projects as the first interviewer), how I would hypothetically deal with eye-tracking issues in mobile devices, and if I knew anything about diffractive optics. Since I did not, we were done. I felt good about how this interview went. Both interviews went into the textbook and not-so-textbook oriented technical topics within 30 seconds. Both interviews lasted exactly 30 minutes with <5 minutes to ask my own questions. Although I did not get rejected from Google, I am on hold and they may revisit my application within 6-12 months. Unfortunately, that does not help my job search for right now.

      Interview questions [2]

      Question 1

      What is the difference between luminance and illuminance?
      2 Answers

      Question 2

      What happens when you change the size of the slits in Young's double slit experiment? What happens if you move them closer or further apart? What happens if you have 3 or 5 slits instead of just 2 slits?
      1 Answer
      12

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