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Computational Physicist

Science and Technology on a Mission!

For more than 60 years, the Lawrence Livermore National Laboratory (LLNL) has applied science and technology to make the world a safer place.

We have openings for Computational Physicists to perform research and development of advanced methods for multi-scale, multi-physics simulation codes in support of the Laboratory’s national security mission. You will work independently as a technical expert on a code development team, focusing on models and algorithms for use in high-performance computing on the latest large-scale parallel computing platforms in advancing the state of the art in large-scale multi-physics simulation; the scope of work involves many parallel tasks requiring prioritization. This position is in the Computation Directorate within the Center for Applied Scientific Computing (CASC) Division.

Essential Duties
- Propose, implement and analyze numerical algorithms to support multi-scale, multi-physics simulation capabilities based on requirements from a diverse user community.
- Participate in the development of simulation tools as part of a multi-disciplinary team.
- Provide informal training, and guidance/support to code users in the application of simulation tools developed.
- Establish and conduct independent research projects and collaborate with a broad spectrum of scientists internally and externally to accomplish research goals.
- Present and disseminate research results at scientific conferences and in peer-reviewed publications, in both open and classified environments, internal and external to LLNL.
- Perform other duties as assigned.

- Ph.D. in applied mathematics, computational physics or engineering, or a related field or the equivalent combination of education and related experience.
- Advanced knowledge in one or more computational science disciplines, such as shock hydrodynamics, fluid mechanics, material behavior, particle transport, radiation transport, plasma physics or chemical processes.
- Significant experience developing and performing analysis of numerical algorithms and conducting independent research.
- Significant experience applying numerical methods within a scientific application.
- Significant experience addressing challenging problems with self-motivation and initiative.
- Significant experience programming in C/C++ in a Linux environment, using high-performance numerical software packages, and developing algorithms for massively-parallel computer architectures.
- Significant experience working independently and developing complex software as part of multidisciplinary team.
- Advanced verbal and written communication skills necessary to collaborate effectively in a team environment, author technical and scientific reports and publications, deliver scientific presentations, and provide advice to management.

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.

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.  If you hold multiple citizenships (U.S. and another country), you may be required to renounce your non-U.S. citizenship before a DOE L or Q clearance will be processed/granted.

Note:  This listing has two openings; to be filled as Career Indefinite or as At Will appointments.  Lab employees and external candidates may be considered for these positions.

About Us

Lawrence Livermore National Laboratory (LLNL), located in the San Francisco Bay Area (East Bay), is a premier applied science laboratory that is part of the National Nuclear Security Administration (NNSA) within the Department of Energy (DOE).  LLNL's mission is strengthening national security by developing and applying cutting-edge science, technology, and engineering that respond with vision, quality, integrity, and technical excellence to scientific issues of national importance.  The Laboratory has a current annual budget of about $1.8 billion, employing approximately 6,500 employees.


LLNL is an affirmative action/ equal opportunity employer. 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, protected veteran status, age, citizenship, or any other characteristic protected by law.

Company Name:
Security Clearance:
Top Secret / SCI
Livermore, California
United States
Not Specified
Job Number:

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