VA-Fort Belvoir, Job Title/Req: Nuclear Physicist/Nuclear Engineer Location: Fort Belvoir, VA Job Description: This position provides operational, research and development, and training support along with subject matter expert advice and decision support to the Defense Threat Reduction Agency (DTRA) as part of its 24/7/365 Reachback contract. Shift work is required. The DTRA Technical Reachback team’s prime focus