A job offer letter is a document that a Canadian employer gives you (as a temporary worker). It explains the details of your job.Here's everything you need to send a legally compliant offer letter to hire a fulltime employee in Canada. Davis is the ultimate college town. It's green, laid back and friendly. Receive a Job Offer; Obtain a SSN support letter from your employer's Payroll office. I'm Allie, your virtual job assistant at Aramark! I can assist you with your job search or help answer any questions you may have about employment with us. If you wish to obtain a job offer from an employer in Canada, the best option is to immigrate on a Permanent Resident Visa. The Postal Service is actively hiring for full time, part time and seasonal employment.