Two interviews, one technical about skills and the task, another about legal aspects eligible to work in CH. First I sent via email my application , they answer 3 days later telling me that I will be called for an interview 1:1. One week later we agree to meet in the company. There was the first interview about background and technical aspects and the task. 1 week later I was called to have another interview about permits, etc and They offered me a position.