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Ab Initio Nuclear Theory - Postdoctoral Researcher

Entry Level | Full-time
Postdoctoral/Fellowship | livermore, CA | 10/12/2023

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Company Description

Join us and make YOUR mark on the World!

Are you interested in joining some of the brightest talent in the world to strengthen the United States’ security? Come join Lawrence Livermore National Laboratory (LLNL) where our employees apply their expertise to create solutions for BIG ideas that make our world a better place.

We are committed to a diverse and equitable workforce with an inclusive culture that values and celebrates the diversity of our people, talents, ideas, experiences, and perspectives. This is important for continued success of the Laboratory’s mission.

Pay Range

$108,840 Annually

Job Description

We have an opening for an Ab Initio Nuclear Theory - Postdoctoral Researcher to conduct research in ab initio nuclear structure and reaction theory.  You will participate in innovative research utilizing state of the art many-body approaches, high-performance computing, and modern statistics methods to accurately describe the structure of exotic nuclei and low-energy reactions that take place during the Big Bang and other astrophysical settings. You will receive regular technical and soft skill training and benefit from committed and active mentoring both at the personal and institutional level. This position is in the Nuclear Data and Theory group of the Nuclear and Chemical Sciences Division, a diverse group that collaborates extensively to provide state-of-the-art theoretical predictions and validated nuclear data.

You will 

  • Conduct innovative research in ab initio theory and/or simulation of light-nuclei structural & reaction properties and their impact to astrophysical processes.
  • Combine ab initio approaches, high-performance computing capabilities and modern statistical methods to deliver accurate predictions of nuclear observables with quantified uncertainties.
  • Design and carry out numerical simulations on supercomputers at LLNL and other national laboratories.
  • Engage in collaborations between the Nuclear Data and Theory group, internal (LLNL), and external collaborators.
  • Pursue complementary research interests and interact with a broad spectrum of scientists internally and externally to the Laboratory.
  • Present research results at scientific conferences and meetings and in peer reviewed publications.
  • Contribute to proposal submissions.
  • Perform other duties as assigned.


  • Ph.D. in theoretical physics or related field.
  • Experience in theoretical methods applied to nuclear structure, reactions, or astrophysical simulations.
  • Experience developing computer codes for physics problems.
  • Ability to develop innovative approaches to tackle scientific and technical problems.
  • Proficient verbal and written communications skills necessary to author technical and scientific reports and publications, and to deliver scientific presentations.
  • Initiative and interpersonal skills with desire and ability to work in a collaborative, multidisciplinary team environment.

Qualifications We Desire

  • Documented publication record in peer-reviewed literature with experience presenting research results to a large audience.
  • Experience with few- or many-body methods applied to atomic nuclei.
  • Familiarity with statistical methods and/or machine learning applied to uncertainty quantification.
  • Familiarity with any of C++, C, Fortran, Python, or equivalent computer programming languages, parallel programming, and general interest in developing large-scale HPC solutions to physical problems leveraging advanced architectures.

Additional Information

All your information will be kept confidential according to EEO guidelines.

Position Information

This is a Postdoctoral appointment with the possibility of extension to a maximum of three years, open to those who have been awarded a PhD at time of hire date.

Why Lawrence Livermore National Laboratory?

Security Clearance

None required.  However, if your assignment is longer than 179 days cumulatively within a calendar year, you must go through the Personal Identity Verification process.  This process includes completing an online background investigation form and receiving approval of the background check.  (This process does not apply to foreign nationals.) 

Pre-Employment Drug Test

External applicant(s) selected for this position must pass a post-offer, pre-employment drug test. This includes testing for use of marijuana as Federal Law applies to us as a Federal Contractor.

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Equal Employment Opportunity

We are an equal opportunity employer that is committed to providing all with a work environment free of discrimination and harassment. All qualified applicants will receive consideration for employment without regard to race, color, religion, marital status, national origin, ancestry, sex, sexual orientation, gender identity, disability, medical condition, pregnancy, protected veteran status, age, citizenship, or any other characteristic protected by applicable laws.

We invite you to review the Equal Employment Opportunity posters which include EEO is the Law and Pay Transparency Nondiscrimination Provision.

Reasonable Accommodation

Our goal is to create an accessible and inclusive experience for all candidates applying and interviewing at the Laboratory.  If you need a reasonable accommodation during the application or the recruiting process, please use our online form to submit a request. 

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The California Consumer Privacy Act (CCPA) grants privacy rights to all California residents. The law also entitles job applicants, employees, and non-employee workers to be notified of what personal information LLNL collects and for what purpose. The Employee Privacy Notice can be accessed here.

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