PURPOSE: The Environment, Safety, and Health Directorate at Oak Ridge National Laboratory (ORNL) invites applications for the Accelerator Facility Safety Engineer position within the Nuclear and Criticality Safety Services Group of the Nuclear and Radiological Protection Division.    ORNL is the largest U.S. Department of Energy science and energy laboratory, conducting basic and applied research to deliver transformative solutions to compelling problems in energy and security.  ORNL operates the Spallation Neutron Source (SNS), a one-of-a-kind research facility that provides the most intense pulsed neutron beams in the world for scientific research and industrial development.