I applied online. I interviewed at UtopiaCompression Corporation (Los Angeles, CA) in Jul 2017
Interview
several engineers asked many question in the range of technique issue, coding ,basic knowledge of linear algebra and probability theory. first they also check the resume and finally they got to know you status such as green card holder.
Interview questions [1]
Question 1
x belongs to A's null space then, does it mean? how to calculate covariance given a set of data. data structure and so on