Only Company and Content Group Admins are able to reactivate a profile within Jolt.
Login to the Jolt Web Portal, go to People then People.
1. Select on the tab Deleted People.
2. Click on the desired profile and then select Reactivate Person.
Once this has been done the employee will appear in the People tab. If the profile is not displaying in this tab refer to the article, People Tab | Employees not Showing.