Came across this issue whereby the ‘UserProfileImportJob’ was throwing out a lot errors in the event viewer. See example below.
The Execute method of job definition Microsoft.Office.Server.UserProfiles.UserProfileImportJob (ID d8644501-7ee7-49bb-aa27-1da0cf1bd1ba) threw an exception. More information is included below.
There was no endpoint listening at http://PSL:5725/ResourceManagementService/MEX that could accept the message. This is often caused by an incorrect address or SOAP action. See InnerException, if present, for more details.
On investigation, it was determined that the 'Forefront Identity Manager Service' was not running.
Restarted this service and all started working smoothly!!