It starts with a On-demand interview, wich is basically a behavioral interview, it's kind of easy of you prepare well your answers. And ofc, if you apply from Mexico, the biggest barrier it's the language, so, take it in mind. Also, u should consider having administrative experience, and highlight some skills, for instance, time management.

I have gone through the first round of interviewing with ICON for the CTA role and it was 5 timed questions basically getting a feeling for if I would be appropriate for this role at all. There is not a lot of time to think but the questions are very standard.