You're interviewed with basic questions by the manager and HR. Which are mostly about your previous jobs and studies. And later you'll give a skill test where you're asked to solder and desolder components.

First, they called you if your CV matched their requirements. Then you come to the office to take an interview. After 3 days, you know you pass or not. Then you accept offer or not. If you accept the offer, they will let you know the policy, salary and the time when you start working.