Lawrence Livermore National Laboratory

Computational Scientist - Partial Differential Equations

Location:  Livermore, CA
Category:  Science & Engineering
Organization:  Computing
Posting Requirement:  External w/ US Citizenship
Job ID: 105967
Job Code: Science & Engineering MTS 3 (SES.3)
Date Posted: August 14 2019

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Join us and make YOUR mark on the World!

Come join Lawrence Livermore National Laboratory (LLNL) where we apply science and technology to make the world a safer place; now one of 2019 Best Places to Work by Glassdoor!

We have an opening for a Computational Scientist to perform research and development of advanced finite element methods for multi-physics simulation codes based on partial differential equations (PDEs) in support of the Laboratory’s national security mission.

You will work independently as a technical expert on a code development team to advance the state of the art in large-scale multi-physics simulation for use in high-performance computing on the latest large-scale parallel computing platforms.

This position is in the Computing Directorate within the Center for Applied Scientific Computing (CASC) Division.
Essential Duties
- Propose, implement, and analyze complex models and numerical algorithms for PDEs to support multi-physics simulation capabilities based on requirements from a diverse user community.
- Design and implement advanced finite element methods and software tools as a technical expert on a multi-disciplinary team.
- Solve abstract problems/ideas creating complex and dynamic algorithms/software modules.
- Provide solutions to complex problems that require in-depth analysis of multiple factors and the creative use of established methods; prioritize many complex parallel tasks.
- 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.
- Significant experience in advanced finite element discretization, including experience with vector finite elements.
- Advanced knowledge of methods used to develop and perform numerical algorithms and conduct independent research.
- Significant experience in applying numerical methods within a scientific application.
- Significant experience programming in C/C++ in a Linux environment, using high-performance numerical software packages, and developing algorithms for massively parallel computer architectures.
- Advanced 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.
- 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 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.