Work permits come in two varieties.

Work Permit Specific to An Employer:

You can work in Canada in accordance with the terms of your employer-specific work permit, which include: the name of the particular employer you are permitted to work for.

Permit to Work Openly:

You can work in Canada for any employer with an open work permit, but only under certain restrictions.

An open work permit might be available to you if you:

• are a foreign student who completed their studies at a recognized educational institution and qualifies for the Post-Graduation Work Permit Program.
• are a student who has applied for permanent residence in Canada because they are no longer able to pay for their education (destitute student).
• are a family member who is dependent on an applicant for permanent residence.
• are an international student or skilled worker's spouse or common-law partner; are a refugee, refugee claimant, protected person; or have a family member with a temporary resident permit.