The first one is online video interview. So simple. The questions are most about behavior questions such as "can you take multiple task at the same time? What would you do?" and "what can you get from the position?" The second round is technical phone interview. I have been asked several questions for an hour. The questions are about Basic math - calculus, Programming concepts, One programming language – C , C++, or Java, MATLAB and a specific area you'd like to choose (Control Systems, Signals Processing, Embedded Systems). I think you should prepared more for programming language and the specific area. The questions related to basic math, programming concepts are not quite difficult.

There were three phases for recruiting procedures. The first stage was a brief and relaxing conversation, the second stage was about technical things and hiring manager asked several questions in the third stage.