Refine Search Clear All

Career Areas

Show More

Experience Level

Employment Type



Show More

Security Clearance

Keyword Search

Back to open positions

Uncertainty Quantification Postdoctoral Researcher

Entry Level | Full-time
Information Technology/Computing | livermore, CA | 05/09/2022

Apply Now  

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 looking for individuals that demonstrate an understanding of working in partnership with team peers, who engage, advocate, and contribute to building an inclusive culture, and provide expertise to solve challenging problems.

Job Description

We have an opening for a Postdoctoral Researcher to perform research in Uncertainty Quantification (UQ), Statistics and Data Science, to advance the discipline as well as to apply cutting edge tools and techniques to high dimensional data stemming from applications that involve complex multi-physics codes that embody a large spectrum of uncertainties across the coupled physics modules. You will work in a multi-disciplinary team together with statisticians, machine learning experts, data science practitioners, and domain scientists in areas such as high energy density physics, material science, nuclear data and weapon physics and design. You will also have the opportunity to engage in a variety of related research projects in computational physics, high-performance computing and data analysis. This position is in the Center for Applied Scientific Computing (CASC) within the Computing Directorate.

In this role you will

  • Research and develop advanced estimation, validation and uncertainty quantification methodology using state-of-the-art statistical methods, machine learning, and/or multi-fidelity modeling.
  • Develop prototype software utilizing high-performance computing to evaluate novel UQ and address model form uncertainty.
  • Publish research results in external peer-reviewed scientific journals and participate in conferences and workshops.
  • Present formal and informal overviews of research progress at group meetings.
  • Contribute to grant proposals and collaborate with others in a multidisciplinary team environment to accomplish research goals.
  • Pursue independent (but complementary) research interests and interact with a broad spectrum of scientists internal and external to the Laboratory.
  • Perform other duties as assigned.


  • Ability to obtain and maintain a US DOE Q-level security clearance which requires U.S. Citizenship
  • Ph.D. in Statistics, Computer Science, or related field.
  • Experience in developing, implementing, and applying uncertainty quantification, Bayesian and other statistical inference methods and algorithms.
  • Ability and desire to obtain substantial domain knowledge in fields of application and ability to communicate effectively with domain scientists.
  • Experience programming in Python/R/Julia, C/C++ or similar languages, and in a Unix/Linux environment.
  • Ability to conduct high quality research and to develop implementations of sophisticated algorithms to evaluate the results.
  • Demonstrates publication record in peer-reviewed journals and/or conferences.
  • Analytical and problem-solving skills necessary to craft creative solutions to independently solve complex problems.
  • Proficient verbal and written communication skills to effectively collaborate in a team environment, present and explain technical information to technical as well as non-technical audiences, document work and write research papers.

Qualifications We Desire

  • Experience with high-performance computing, GPU programming, parallel programming, cloud computing, and/or related methods.

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.  Eligible candidates are those who have been awarded a PhD at time of hire date.

Why Lawrence Livermore National Laboratory?

  • Included in 2022 Best Places to Work by Glassdoor!
  • Work for a premier innovative national Laboratory
  • Comprehensive Benefits Package
  • Flexible schedules (*depending on project needs)
  • Collaborative, creative, inclusive, and fun team environment

Learn more about our company, selection process, position types and security clearances by visiting our Career site

COVID-19 Vaccination Mandate

LLNL demonstrates its commitment to public safety by requiring that all new Laboratory employees be immunized against COVID-19 unless granted an accommodation under applicable state or federal law. This requirement will apply to all new hires including those who will be working on site, as well as those who will be teleworking.

Security Clearance

This position requires a Department of Energy (DOE) Q-level clearance.  If you are selected, we will initiate a Federal background investigation to determine if you meet eligibility requirements for access to classified information or matter. In addition, all L or Q cleared employees are subject to random drug testing.  Q-level clearance requires U.S. citizenship.  For additional information, please see DOE Order 472.2

Pre-Employment Drug Test

External applicant(s) selected for this position will be required to 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.

Equal Employment Opportunity

LLNL is an affirmative action and equal opportunity employer that values and hires a diverse workforce. 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.

If you need assistance and/or a reasonable accommodation during the application or the recruiting process, please submit a request via our online form

California Privacy Notice

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.

Videos To Watch