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. A job offer letter is a document that a Canadian employer gives you (as a temporary worker).It explains the details of your job. Find out job offer requirements for Express Entry and who needs a Labour Market Impact Assessment (LMIA). The Letter of employment is the same thing as the job reference letter. It is evidence for the jobs you listed in the Job history. Learn everything about job offer letters for immigration, including eligibility criteria, required documents, and the process. You may get an "offer letter" after interviewing with an employer AFTER you obtain your permanent residency. Governor Glenn Youngkin Announces Continued Workforce Expansion Amid Rising Payroll Employment. James Knox Polk was the 11th president of the United States, serving from 1845 to 1849.