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Postdoctoral Research Associate - Multiphysics Modeling of Nuclear Materials

Date: Sep 19, 2022

Location: Oak Ridge, TN, US, 37830

Company: Oak Ridge National Laboratory

Requisition Id 9078 


We are seeking a Postdoctoral Research Associate who will support the Nuclear Structures and Construction Group in the Nuclear Energy and Fuel Cycle Division (NEFCD), Fusion and Fission Energy Science Directorate (FFESD) at Oak Ridge National Laboratory (ORNL). The Postdoctoral Research Associate will focus on developing and applying multiphysics computational models for nuclear materials applications. Such applications include the mesoscale modeling of nuclear fuel microstructural evolution and multiscale modeling of concrete degradation mechanisms.


Our group members can work collaboratively with diverse subject matter experts from across the laboratory to solve challenging and important problems related to the development, construction, and operation of fission and fusion energy technologies, carbon-free energy technologies, and ORNL scientific facilities. Members are expected to perform work consistent with Environment, Safety, Security, Health, and Quality (ESH&Q) requirements and business rules. Further, members are part of a diverse and inclusive work environment where every employee feels safe, heard, and appreciated—a workplace that sets an example for the broader community.


Major Duties/Responsibilities: 

  • Work with a diverse team of scientists to conduct R&D projects and support the expansion of R&D in the field of computational research applied to nuclear materials.
  • Use, develop, contribute to the maintenance of the computational tools used and developed by DOE (MARMOT, Grizzly, MOSAIC, DAKOTA), and assist the development of experiments supporting the numerical research.
  • Plan modeling approaches and perform simulation, verification, validation, and documentation.
  • Present and report research results in peer-reviewed journals, conferences, program reviews, and technical committees.
  • Ability to meet quality assurance standards, through documenting work and developing procedures.
  • Ensure compliance with environment, safety, health, and quality program requirements.
  • Maintain strong commitment to the implementation and perpetuation of values and ethics.


Basic Qualifications:

  • A Ph.D. degree in materials science, mechanical engineering, nuclear engineering, or a related field, obtained within the last 5 years.


Preferred Qualifications:

  • Experience in conducting R&D projects and supporting the expansion of R&D in the field of computational materials science.
  • Demonstrated ability to independently solve technical problems with limited supervisory oversight for research and development projects.
  • Experience with DOE advanced modeling and simulation tools and high-performance computing.
  • Knowledge of numerical methods and experience in multiphysics modeling.
  • Experience in image processing and data analysis (ideally using Python).
  • Experience with object-oriented programming (ideally in C++).
  • Excellent oral and written communication skills to support regular interactions with fellow research staff, peer reviewers, research sponsors, and to prepare reports, proposals, publications, and journal articles.
  • Strong interpersonal and communication skills to support team building, partnering inside and outside ORNL.


Please submit three letters of reference when applying to this position. You can upload these directly to your application or have them sent to with the position title and number referenced in the subject line.


Instructions to upload documents to your candidate profile:

  • Login to your account via
  • View Profile
  • Under the My Documents section, select Add a Document


Applicants cannot have received their Ph.D. more than five years prior to the date of application and must complete all degree requirements before starting their appointment. The appointment length will be for up to 24 months with the potential for extension. Initial appointments and extensions are subject to performance and the availability of funding.


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.

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