at Argonne National Laboratory in Lemont, Illinois, United States Job Description Lemont, IL USA Full time 423346 The Chemical and Fuel Cycle Technologies Division is seeking a Postdoctoral Appointee with expertise in radiochemistry, chemistry, chemical engineering, or a related field to support experimental research in radiochemical separations and advanced aqueous recycling of used nuclear fuel ( UNF ). The successful candidate will contribute to the development and optimization of advanced aqueous recycling options for UNF and related separations flowsheets, with an emphasis on hands-on experimental work in radiochemistry laboratory environments. Responsibilities include designing, building, modifying, and operating experimental systems for separation processes; conducting laboratory-scale studies involving radiotracers and actinide/lanthanide separations; supporting the development and optimization of aqueous processing approaches and dry head-end separations methods; evaluating process performance; and contributing to technical reports, publications, and sponsor deliverables. The successful candidate will work closely with scientists, engineers, and technical staff in a highly collaborative research environment and will be expected to maintain a strong commitment to safe radiological work practices, rigorous experimental methods, and high-quality research outcomes. Key Responsibilities + Plan and execute radiochemical laboratory experiments involving radiotracers, irradiated targets and materials, and aqueous separations in controlled environments such as radiological hoods, gloveboxes, and hot cells + Design, assemble, operate, troubleshoot, test, and optimize experimental systems and specialized apparatus, including fluid handling systems, centrifugal contactors, sample preparation methods, and instrumentation, to support advanced aqueous recycling of UNF + Evaluate separations performance for actinides, lanthanides, and fission products through experimental testing and data analysis + Prepare test plans and operating procedures, and contribute to technical documentation, reports, publications, and sponsor deliverables + Collaborate with multidisciplinary teams and maintain a strong commitment to safe work practices and compliance with laboratory requirements + Author or co-author research proposals and white papers focused on bringing new R D opportunities to the division Position Requirements + Ph.D. in Radiochemistry, Chemistry, Chemical Engineering, or a closely related field completed in the past 5 years or s To view full details and how to apply, please login or create a Job Seeker account