Hi Cesar, that is tough to answer, and depends somewhat upon the industry you choose. The job opportunities won't really be determined by your nationality - but the industry/function you choose. One nice thing about Canadian business schools is that they offer a 3-year visa post MBA, however many students prefer to attend a higher ranked school than Ivy or Rotman. In the US, the most viable career options for an international student are consulting, finance and tech (where they have a chance to obtain employer visa sponsorship.) Hope this helps. Would not be a bad idea to contact an immigration attorney to discuss the nuances.