Most Canadian employers need to apply and obtain a document called positive Labour Market Impact Assessment (LMIA) to hire a Temporary foreign worker ( TFW).
With the positive LMIA confirmation letter, the temporary foreign worker can apply for the work visa and the Employer Specific work permit.

In Quebec, most employers must obtain validation of the job offer from the provincial and federal government. The applications must be submitted to these authorities simultaneously.

In certain cases, Canadian employers have the possibility to hire a foreign worker without the LMIA process. The employer in these cases should submit the job offer to Immigration, Refugees and Citizenship Canada (IRCC) to obtain an offer of employment number.

If you find a foreign worker who fits well into your company or organization structure, you have the option to hire him or her permanently.
The approval of the permanent job offer will help your current or future employee in getting the Canadian permanent residence.

If you are the spouse or family member of a study permit or work permit holder in Canada, you may be eligible to apply for an open work permit.

A specific employer work permit is Canada work authorization that allows you to work for the employer specified on your work permit.
Before submitting your work permit application, your employer must provide you with an offer of employment number or a positive LMIA decision.

Every worker is entitled to a safe and healthy work environment.
If you are working in Canada and being abused or at risk of being abused in the context of your employment, you may be eligible for an open work permit for vulnerable workers.

If you want to renew your Canadian work permit with the same employer or work for a different employer or different occupation you must apply to extend or change the conditions of your work permit

If you did not apply to extend your Canadian work permit before the expiry date, you have 90 days after the work permit expires to apply to restore your work permit.

An open work permit may be issued by IRCC for humanitarian reasons. This type of work permit is suitable for the holders of Temporary resident permit (TRP), for destitute students and for persons who are under removal orders.

Every year thousands of young Canadians and foreign nationals from participant countries travel and gain valuable International work experience. Canada must have a reciprocal agreement with the participant country to apply for the working holiday visa.