Drug testing for THC in Alberta, Canada

Hello, I was looking into going into EMS, however I smoke weed regularly for anxiety. Looking specifically for advice from people working in Alberta. Do you get drug tested before starting a job? I did a ride along and the two medics were casually talking about how they smoke weed after work so it gave me some hope. Obviously I would never be impaired at work, its just a joint before bed kind of thing. Thanks in advance.