Lawrence Livermore National Laboratory

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Computational Scientist

Location:  Livermore, CA
Category:  Science & Engineering
Organization:  Computation
Posting Requirement:  External w/ US Citizenship
Job ID: 104967
Job Code: Science & Engineering MTS 4 (SES.4)
Date Posted: March 11 2019

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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 an opening for a Computational Scientist 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.
- Design and implement simulation tools as part of a multi-disciplinary team.
- Solve abstract complex problems/ideas creating highly complex and dynamic algorithms/software modules.
- Provide solutions that require in-depth analysis of multiple factors and the creative use of established methods.
- 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.
- Subject matter expertise in one or more computational science disciplines, such as shock hydrodynamics, fluid mechanics, material behavior, particle transport, radiation transport, plasma physics or chemical processes.
- Substantial experience developing and performing analysis of numerical algorithms and conducting independent research.
- Highly advanced experience in applying numerical methods within a scientific application.
- Substantial experience programming in C/C++ in a Linux environment, using high-performance numerical software packages, and developing algorithms for massively-parallel computer architectures.
- Expert analytical, problem-solving, and decision-making skills to develop creative solutions to complex problems.
-Ability to work independently while effectively managing concurrent technical tasks with competing priorities.
- Expert verbal and written communication and interpersonal skills necessary to effectively collaborate with internal and external teams to present and explain technical information and advise senior management; as well as diplomatic communication skills for interactions with sponsors/customers, and multi-lab teams.

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 is a Career Indefinite position. Lab employees and external candidates may be considered for this position.

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 $2.1 billion, employing approximately 6,800 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.