Current Job Openings Scientists and Engineers -- Includes vacancy announcements for all managerial, research, and support scientist positions requiring a scientific background in the life, physical, and engineering sciences. U.S. citizenship is required. Research Associates -- Includes temporary (usually up to 2 years in duration) postdoctoral research associate positions for Ph.D. graduates in the life, physical, and engineering sciences.  Preference is given to candidates whose degree has been received within the last 4 years. Citizenship restrictions apply. All Other Jobs -- Includes vacancy announcements for all administrative, clerical support, trades and scientific technician positions. U.S. citizenship is required. Student and Summer Employment -- Provides information on who to contact in ARS if you are interested in student and summer employment opportunities. Citizenship restrictions apply.       Last Modified: 12/29/2005