There are 3 stages to the interview. First step is the Human Resource Manager. They would ask you simple questions about your experience and background information. They might ask you a few behavioral questions such as "If you had a conflict with a co worker, how would you solve it?". Second interview will be with the director/manager of whatever department you signed up for. For this second phase the manager will typically ask more detailed questions about what skills you would contribute to the role. The third phase is panel interview and those questions will depend on who the managers attending are. All and all it is not stressful if you prepare yourself with the normal interview questions.