I didn't go through an interview. I did my master studies at EPFL and was offered a PhD student position by two different professors at the end of my master.
Questions d'entretien [1]
Question 1
Aimerais-tu faire un doctorat dans mon laboratoire ?
A 50-minute interview was conducted, during which my knowledge was tested. They asked exclusively about the technical design process, and the only other question was my motivation for applying to the PhD program.
application first and then there was an interview with hiring lab professors if your first online application passed the screening process.
there was a couple months wait between the first application and the interview
Questions d'entretien [1]
Question 1
what experience do you have suitable for this role