You'll need also a Letter of employment for the time you were working for your employer, including NOC, Salary, duties, dates and worked hours. 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 job offer letter is a document that a Canadian employer gives you (as a temporary worker). It explains the details of your job. Hiring employees in Canada? A job offer letter from a Canadian employer is a crucial document for obtaining a work permit and potentially immigrating to Canada. Find out job offer requirements for Express Entry and who needs a Labour Market Impact Assessment (LMIA). I currently live far upstate. Found the perfect candidate to hire? We've got 7 types of job offer letter templates to choose from that'll help you seal the deal.