SRNL is seeking a Chief of Staff for the Global Security Directorate (GSD). GSD is growing in the areas of: Low-level radioisotope detection and measurement, international nuclear safeguards. Export control programs to prevent the spread on WMD technology. Analysis of nuclear weapons, fuel cycle programs and the spread of WMD technology. Atmospheric modeling and sampling, nuclear material processing. development of nuclear material shipping packages. Electrical grid resiliency and cybersecurity.