We use all types of tractors here not just JD.
You are operating heavy machinery like wheel loaders etc. Most of those types of equipment are used on road building sites etc and not in agriculture. There is a demand for experianced operators and any type of infrastructure projects usually involves some form of heavy equipment. This is usually not an apprenticeable trade in Canada but most provinces have an associaltion that looks after the certification of operators. An examble can be found here:
http://www.mhca.mb.ca/You may want to contact them and see what the outlook is for operators.