We have an opening for an Atmospheric Scientist and Modeler to work on consequence assessment in response to the dispersal of hazardous material. This position will be part of a multidisciplinary team within the National Atmospheric Release Advisory Center (NARAC –  https://narac.llnl.gov ), a national support and resource center for emergency planning, real-time assessment, emergency response, and detailed studies of atmospheric releases of nuclear, radiological, chemical, biological, and hazardous natural materials. This position is in the Atmospheric Science Research and Applications group within the Atmospheric, Earth, and Energy Division of the Physical Life Science Directorate. In this role, you will Create atmospheric dispersion modeling calculations for hazardous atmospheric releases and provide consequence assessments. Develop assessments using output from NARAC’s modeling tools for scientific support and resolution of moderately complex to complex technical problems. Communicate results to internal and external audiences ranging from peers to sponsoring organizations via written technical reports and presentations. Serve as part of monthly on-call rotations in the NARAC Operations Center. Provide technical expertise and scientific support to NARAC users and stakeholders. Develop and document operating procedures and perform monthly testing of the NARAC modeling suite. Perform other duties as assigned.  In addition at the SES.3 level: Lead complex technical projects and tasks, providing technical direction and coordinating project scope, staffing, schedules, and budgets. Develop proposed work scopes and contribute to or lead written proposals for sponsors. Independently conduct novel research, develop or adapt modeling methods and capabilities, and document findings in technical reports, peer-reviewed publications, and presentations. Serve as a technical expert, providing guidance to team members and contributing to technical strategy for atmospheric consequence assessment activities.