K.O...you need to get a Canadian Flight Dispatch Certificate from Transport Canada to work as a certified / qualified Dispatcher in Canada, two exams, met and aviation operations will get you the certificate. Though you can work at some shops that are Type C with out (pilot self Dispatch) but do not pay nearly as much as if you had your certificate. Jobs out there, just have to find them, try north end of Toronto Pearson, lots of outfits looking for good folks
Cheers