Careers > Employment opportunities within the Agricultural Research Service are many and challenging. Our permanent positions are filled by scientists with educational backgrounds in the life, physical, and engineering sciences. ARS also employs professional, technical, administrative, and clerical staff in various occupational areas, as well as student and summer employees. 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. Postdoctoral 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. Administrative, Technical, Clerical and Trades -- 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.