I have been able to do only the first part... neamely the part in which they ask to compute multiplication, division, addition, subtraction etcc. , it was though, But I think that if you prepare very well there are chances to go to the next step
Solicitud
Me postulé en línea. El proceso tomó 4 semanas. Acudí a una entrevista en Optiver
Entrevista
First there was an online assessment to test mathematical aptitude. After this, there is a phone screening. Then there were technical questions (stats/probability and game theory) over the phone and HR questions over zoom.