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. 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. Here's everything you need to send a legally compliant offer letter to hire a fulltime employee in Canada. Find out job offer requirements for Express Entry and who needs a Labour Market Impact Assessment (LMIA). A job offer letter from a Canadian employer is a crucial document for obtaining a work permit and potentially immigrating to Canada. We'd love to have you join our dedicated and compassionate team of healthcare professionals. You have to write a formal job offer letter. You will need a full time job opening, a job description, start and end dates, salary details.