I only got the call back for the video interview via modernhire, not the face to face interview, Although I didn't make it to CERN, it was a pretty good experience.
Me postulé en línea. El proceso tomó 2 meses. Acudí a una entrevista en CERN en oct 2021
Entrevista
It was asynchronous. I had to answer to various question about how much I know about cern and my project. It was a little bit akward but not difficult. Therefore some people from specific team can call you for a more specific interview.