Chevvron,
it has changed, and it isn't even ULE anymore (as referred to by OP and Defruiter)
UEE - Unit Endorsement Examiner - ATCO authorised by CAA to conduct Unit Endorsement Examinatio
UCE - Unit Competence Examiner - ATCO authorised by CAA to conduct annual competence assessments for the renewal of Unit Endorsements
UE (not ULE) - Unit Endorsement - Authorisation that specifies the unit at which the holder is entitled to exercise the privileges of their licence and the validity of any ratings and rating endorsements included in said licence.