The airline's declaration doesn't count for much when you've been deported previously - and with a lifetime ban. That means that Canada has said that you are NOT allowed to enter the country. Working for an airline will not change this. You need to inform your airline, or else you risk being deported again, and possibly getting into major trouble with your employer.even if it’s work related? Airline will have general declaration and I will return after a day, in next flight. I have been to USA and only our passport was scanned at kiosk machine I do have charges against me when I was deported. I thought working in a airline will allow me to enter Canada as the airline always give declaration that all crew would leave that country in timely manner.
The only route available to you is-
1. Apply for an get an ARC. This may well be possible - here's where your job + airline declaration may help.