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Technical Professional in Meteorological Modeling for Nuclear Security Analysis

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Date: Mar 15, 2019

Location: Oak Ridge, TN, US, 37831

Company: Oak Ridge National Laboratory

Requisition Id 283 


The Nuclear Security Modeling (NSM) Group within the Nuclear Nonproliferation Division at Oak Ridge National Lab (ORNL) seeks applications for a technical professional that will focus on development and application of computational models relevant to a variety of nuclear fuel cycle processes for security and nuclear forensics applications. The Nuclear Nonproliferation Division is a leader in research, development, and deployment of technology that enhances nuclear nonproliferation and safeguards, reduces threats to nuclear material at risk, and expands the national capabilities in radiation detection and nuclear forensics. The NSM Group staff combines expertise in nuclear engineering, nuclear chemistry, applied mathematics, and computational modeling to conduct R&D in nuclear nonproliferation, consequence management, and post-detonation nuclear forensics. Modeling applications include all elements of the nuclear fuel cycle (e.g., enrichment, reactor analysis, and spent fuel safeguards); consequence assessments and forensics related to nuclear detonations; and search and assessment approaches for nuclear and radiological material. The NSM Group collaborates with other groups across the laboratory to develop, implement, and validate enhanced computational methods that support the key mission areas of NSM. The major customers of the work performed in this group are the National Nuclear Security Administration, Department of Defense, Department of Homeland Security, and other government agencies.


Job Duties and Responsibilities:

The responsibilities of this position include conceptualizing and performing  the assessment of proliferation in every stage of the nuclear fuel cycle and nuclear weapons. Expertise is expected in one or more of the following areas: meteorological modeling analysis, atmospheric science, forecasting, mesoscale modeling, atmospheric transport and dispersion, numerical weather prediction, nuclear fallout modeling, and meteorological data acquisition, processing, and dissemination.  The primary focus for this position is to develop and implement methods for simulation of these meteorological and nuclear security processes. The research will focus on developing and validating meteorological modeling methods and integrating these methods into existing modeling and simulation (M&S) tools. The researcher will maintain and develop the codes used for this evaluation, test their performance on different operating systems, and validate results using both numerically generated and actual measured data. Work will usually include a statistical analysis of the uncertainties and correlations in the reconstructed values. Finally, the technical staff member will maintain a strong understanding of the overall goals of various federal agencies involved in meteorological modeling and nuclear security analysis.


Qualifications Required:

The selected candidate will be responsible for interacting with division staff, both within and outside the Nuclear Security Modeling group, who work on projects in a team environment. The candidate will be expected to work independently, perform technical activities, fully document work in technical reports and publications, and effectively interface with project sponsors.


Candidates for this position must have a Bachelor’s degree in meteorology or related field such as atmospheric science and have 5 to 7 years of recent experience (or combination of education and experience) in modeling and analysis, with demonstrated accomplishments in the solution of a variety of real-world problems. A firm understanding of the science of atmospheric transport and dispersion, backed by demonstrated recent and relevant experience in the field, is a fundamental requirement of this position. It is highly desirable for the candidate to have experience with Numerical Weather Prediction (NWP), High Performance Computing (HPC), the Weather Research and Forecast (WRF) model, DTRA’s HPAC/SCIPUFF model, NOAA’s HYSPLIT model, and/or operational weather models. Excellent verbal, presentation, and writing skills are required to enable effective interaction and communication with technical peers, program managers, and sponsors.


The candidate should have considerable programming experience using high-level languages. Additional capabilities, such as programming on parallel processors using the message-passing interface (MPI) are a plus. It is highly desirable for the candidate to have knowledge and experience with national meteorological agencies and/or universities. The ideal candidate would also have diverse experience in many application areas such as nuclear power plant emissions, nuclear accidents, and nuclear weapon fallout.


This position requires the ability to obtain and maintain a clearance from the Department of Energy. As such, this position is a Workplace Substance Abuse (WSAP) testing designated position. WSAP positions require passing a pre-placement drug test and participation in an ongoing random drug testing program.


Benefits at ORNL:  UT-Battelle offers a quality benefits package, including a matching 401(k), contributory pension plan, paid vacation, and medical/dental plan options. Onsite amenities include a credit union, medical clinic, cafeteria, coffee stands, and fitness facilities.   


Relocation:  Moving can be overwhelming and expensive. UT-Battelle offers a generous relocation package to ease the transition process. Domestic and international relocation assistance is available for certain positions. If invited to interview, be sure to ask your Recruiter (Talent Acquisition Partner) for details.


For more information about our benefits, working here, and living here, visit the “About” tab at


This position will remain open for a minimum of 5 days after which it will close when a qualified candidate is identified and/or hired.

We accept Word (.doc, .docx), Adobe (unsecured .pdf), Rich Text Format (.rtf), and HTML (.htm, .html) up to 5MB in size. Resumes from third party vendors will not be accepted; these resumes will be deleted and the candidates submitted will not be considered for employment.

If you have trouble applying for a position, please email

ORNL is an equal opportunity employer. All qualified applicants, including individuals with disabilities and protected veterans, are encouraged to apply.  UT-Battelle is an E-Verify employer.

Nearest Major Market: Knoxville

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