Alright, I'm on my actually computer so I can type out a pretty decent reply.
To be a PAID patroller on any mountain in British Columbia or Alberta you must hold an 80 hour first aid course. The three main courses that are acceptable are your Occupational First Aid level 3 which is worksafe approved, Outdoor emergency care which is a course run by the american national ski patrol. The last course which isn't accepted by everyone is your 80 hour wilderness first aid.
Most patrollers who just have their first aid certificate will get paid around $12-14 an hour. Now if you worked at hill that has more avalanche terrain and such you would your Canadian Avalanche Operations level 1 as well as your first aid to get a job there, so places like Whitewater, Red Mountain, Fernie, Revelstoke you would need it.
A big misconception is that to be on paid/patrol staff you have to be a volunteer first at the mountain. That is only relevant for Revelstoke and Whistler/Blackcomb. Other resorts would rather you build up experience with midsize mountains like Silver Star, Mount Washington or the north shore mountains and apply because any pro patrol position is so much more experience than a volunteer position who only comes in 3-4 times a month.
Don't be afraid of applying for patrol at the smaller mountains as every mountain pretty much needs a paid staff member in case of chair evacs, workplace injuries and creating policies. So don't be afraid to look into places like Manning Park, Hemlock, Apex, Shames mountain.
Being a Patroller is a very rewarding job, there really is nothing better than skiing powder before the public is on the hill, helping someone when they're hurt and then skiing some more in the afternoon.