Learn what to include in a job offer letter and use our ready made template. A job offer letter is a document that a Canadian employer gives you (as a temporary worker).It explains the details of your job. The following is a TN visa sample letter for organizations wishing to hire Mexican or Canadian citizens. An offer letter provides a brief overview of the position and company and includes specific job details, such as start date, salary, work schedule and benefits. A sample letter offering a job contingent upon the results of a background check or other criteria. An Employment Offer Letter is sent to a prospective employee to outline the exact terms and conditions of his or her new job. What if I have a Resumé? A resumé should be attached to a job application. Does the address on a resume matter while applying for jobs in a state other than your home state?