While Slava is generally correct, the barriers to entry are actually quite low. It starts with the Canadian Securities Course which is the basic course for most roles in the investment industry. The Canadian Securities Institute offers many courses for different paths.
https://www.csi.ca/student/en_ca/home.xhtml
It has a lot of info on that site about different roles. If you are serious about investing you should take the CSC to be taken seriously. The designations Slava speaks to come after several years in the industry.