How to work remotely for a Canadian Company?

[ionoprea]

Hi All,
 I am failed refugee claimant and shortly I have to leave back home. My current employer asked me if I could be able to work remotely from back home(eastern Europe).
 I have a permanent part-time employment contract with them.
 
 How can they hire me as a remote worker?
 Are there any specific rules or legal procedures?
 Do I need a work permit or social insurance number, because mine won't be active once I will live the country?

Thank you!