I interviewed at Nestlé Hong Kong. The whole process lasted for about 3 weeks to a month. There is an aptitude test at first, then HR will give you a call suddenly for a 15-20 minutes interview. After screening, there is an assessment centre which basically is a group interview that lasted for 1 hour. This group interview requires basic technical knowledge. The last stage of the interview is an individual interview that lasted for around 45 minutes. No technical questions were asked and it feels like they are trying to learn about your personality and character, and how you would handle different situations. To be honest, the most difficult part of the whole application process is the aptitude test since the questions are quite hard.