Excellent process and thorough.

I interviewed with several engineers and received prompt follow-up.

They also set up all the travel and other arrangements for a successful interview. However, there was some waiting time between interviews.

They asked me a technical question about sampling a rotating platter which was half black and half white.

The question was to determine the minimal number of samples required in order to ascertain the color under the sensor. It had to do with the Nyquist rate.

They also asked me to implement a quick sort.