A job offer letter is a document that a Canadian employer gives you (as a temporary worker). It explains the details of your job.Ready to find out if you qualify for Canadian immigration? Fill out our free online assessment to get started on your journey today! You may get an "offer letter" after interviewing with an employer AFTER you obtain your permanent residency. A job offer letter from a Canadian employer is a crucial document for obtaining a work permit and potentially immigrating to Canada. Can you claim CRS for a job Offer. Information about the County's applicant testing, interviewing, and hiring process can be found here. With full- and part-time positions available — and lots of opportunity to grow — put your career in fast-forward at the Rack. Start your adventure here.