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Radiative Transfer Modeler

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Job ID: 2313184
Location: COLLEGE PARK, MD, United States
Date Posted: Sep 28, 2023
Category: Engineering and Sciences
Subcategory: Scientist
Schedule: Full-time
Shift: Day Job
Travel: No
Minimum Clearance Required: None
Clearance Level Must Be Able to Obtain: Public Trust
Potential for Remote Work: Hybrid Remote
Benefits: Click here

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Job Description


SAIC is looking for a candidate to support the Environmental Modeling Center (EMC) of the National Centers for Environmental Prediction (NCEP) in developing and maintaining radiative transfer modeling in the Unified Forecast System (UFS). UFS is a fully coupled earth system model including atmosphere, land, ocean, ice, wave, and aerosol components. UFS is configured for different operational and research applications which cover a variety of temporal and spatial scales. The candidate will work in the EMC Physics and Dynamics Division at the NOAA Center for Weather and Climate Prediction (NCWCP) in College Park, MD.


Job Description:

  • Maintain and improve the accuracy and efficiency of radiative transfer modules used by UFS applications.
  • Improve the accuracy and efficiency of radiation-cloud and radiation-aerosol coupling in UFS applications.
  • Transition from the community advancements in radiative transfer techniques to NCEP operation, including code implementation and performance assessment in UFS applications.
  • Work within a team to improve the interactions between radiation and other physics processes.
  • Collaborate with community developers to advance radiative transfer techniques for weather and climate modeling across scales.


Required Education:

  • Bachelors and two (2) years or more experience; Masters and 0 years related experience

Desired Education:

  • Master's degree or higher in computer science, atmospheric sciences, meteorology, geophysics, applied mathematics, or a related physical science field. 

Required Experience:

  • Advanced knowledge of radiative transfer theory and techniques for earth system modeling applications.
  • Advanced skills in developing and validating radiative transfer code for earth system modeling applications.
  • Advanced skills and knowledge of modern programming languages and object-oriented languages, such as Fortran and Python;
  • Proficient with modern software development practices, such as the GitHub/Git version control software and environment;
  • Experience working in a UNIX environment and familiarity with shell scripting languages and running complex jobs.
  • Experience in running numerical models on High Performing Computer (HPC) platforms.
  • Demonstrated ability to work efficiently in a team environment and communicate effectively in both oral and written forms.
  • Familiar with various scientific data formats like NctCDF and GRIB2 and has experience analyzing large scientific datasets.


Desired Experience:

  • Experience with operational NWP and/or an operational forecasting environment.
  • Experience in model testing and evaluation and knowledge of verification principles


  • Candidates must be a U.S. Citizen or Green Card Holder to qualify and must live in US for 3-5 years prior to application (please indicate in your cover letter) and must be able to obtain a Public Trust Clearance.

Covid Policy: SAIC does not require COVID-19 vaccinations or boosters. Customer site vaccination requirements must be followed when work is performed at a customer site.


SAIC® is a premier Fortune 500® technology integrator driving our nation's technology transformation. Our robust portfolio of offerings across the defense, space, civilian, and intelligence markets includes secure high-end solutions in engineering, digital, artificial intelligence and mission solutions. Using our expertise and understanding of existing and emerging technologies, we integrate the best components from our own portfolio and our partner ecosystem to deliver innovative, effective and efficient solutions that are critical to achieving our customers' missions.

We are approximately 24,000 strong; driven by mission, united by purpose, and inspired by opportunities. SAIC is an Equal Opportunity Employer, fostering a culture of diversity, equity, and inclusion, which is core to our values and important to attract and retain exceptional talent. Headquartered in Reston, Virginia, SAIC has annual revenues of approximately $6.9 billion. For more information, visit For ongoing news, please visit our newsroom.

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