There is no occupation known as "paratrooper" in the Canadian Armed Forces. Certain units received jump training, but even then, there is no guarantee that you will be doing much jumping at all. Even in WW2, "jump" companies spent most of their time fighting and being deployed just like normal infantry, but we're called upon to perform combat drops when their specific skills were needed.
I can't say for sure, but I doubt that as a member of QORC you would be doing much jumping. Maybe during a big exercise once per year. Again, I have no authority on this other than my two years working in the (Naval) reserve, but working alongside 6 Army Reserve units in my city. There is limited budget, limited time, and limited effort available to make things like jump exercises happen.
If you go the ref force route, your best bet is to join the infantry (obviously), and then once you are fully trade qualified you can request to your jump specialization, and then get posted to one of our jump companies (C Company of the 3rd Battalion of all 3 Regiments, I believe). Although I may have it backwards; perhaps you get posted to C Company and then they train you to be a jumper? Again, I'm a sailor, and this ain't my part-ship.
What I do know is that if you want to jump ALOT, you need to join the SkyHawks, which is Canada demonstration para-shoot team. They are more like circus performers than infanteers, but they get to jump all year.