last I checked there are no restrictions on employment of Syrian people in the EU/UK, unless they are related to the government or military etc.
It seems the harder restrictions were lifted in 2014 in the EU due to member state disputes.
https://www.gov.uk/guidance/sanctions-on-syria
https://www.gov.uk/government/publications/financial-sanctio...
Well, there is nothing about restricting general employment of Syrians in there.