Particle physics laboratory

Design Physicist in Livermore, CA for Lawrence Livermore National Laboratory


Join us and make YOUR mark on the world!

Are you interested in joining some of the brightest talents in the world to strengthen the security of the United States? 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 essential to innovation and creativity for the continued success of the Laboratory’s mission.

job description

We have several openings for design physicists

We are looking for the exceptional Physical Scientists and Engineers with backgrounds in fields such as plasma physics, radiation transport, atomic physics, nuclear physics, physical chemistry, condensed matter physics, computational physics or hydrodynamics. Our national security mission encompasses aspects of computational, theoretical and experimental physics associated with the complex processes of nuclear explosives. Under limited leadership, you will be tasked with advancing our understanding and developing methodologies for important national security challenges. This position is located in the Design Physics division within the Weapons and Complex Integration (WCI) department.

This position will be filled at either level based on the knowledge and related experience assessed by the hiring team. Additional job responsibilities (described below) will be assigned if hired at the higher level.

In this role you

  • Evaluate the complex physical interactions that occur during a nuclear explosion.
  • Design and analyze experiments exploring the physics of nuclear explosives.
  • Simulate weapon phenomena and perform weapon assessment and certification tasks using physical models in computer codes.
  • Define and implement inventory management for specific weapon systems.
  • Present and disseminate research results at scientific conferences and in peer-reviewed publications, in open and classified environments, internal and external to the LLNL. Responsibilities may also include interacting with external stakeholders, both at DOE / NNSA and across all agencies, as well as through off-site missions.
  • Develop expertise in interrelated areas of physics important for the assessment and certification of weapons.
  • Minimal or substantial travel depending on the needs of the projects.
  • Perform other assigned duties.

Additional professional responsibilities at the SES.3 level

  • To independently develop, assess and provide in-depth analysis of the complex physical interactions that occur during a nuclear explosion where the problems may not be well defined.
  • Work as a technical expert within a multidisciplinary team.
  • Guide the analysis and lead the design of experiments exploring the physics of nuclear explosives.


  • Doctorate in physics, engineering or related field or equivalent level of demonstrated knowledge.
  • Demonstrated record of carrying out outstanding research in relevant areas of physics and engineering.
  • Experience in the design and analysis of computer experiments.
  • Demonstrated ability to master new areas of physics; a record of creativity, physical insight and breadth of understanding in the applications of complex physical processes.
  • Experience in using advanced computer facilities for applied physics analysis and conducting research in applied physics.
  • Oral and written communication and presentation skills required to write technical and scientific reports, publications, guest papers and to make scientific presentations.
  • Experience working effectively independently and in a multidisciplinary team research environment.
  • Self-motivation and demonstrated initiative to solve difficult problems.

Additional qualifications at SES.3 level

  • Advanced knowledge in physics, engineering or related field.
  • Significant experience and ability to conduct independent research in applied physics.
  • Proven track record of leading research in relevant areas of physics and engineering.

Why the Lawrence Livermore National Laboratory?

  • Included in 2020 Best Places to Work by Glassdoor!
  • Working for a leading innovative national laboratory
  • Full Benefits package
  • Flexible hours (* according to the needs of the project)
  • Collaborative, creative, inclusive and fun team environment

Learn more about our company, the selection process, job types and security clearances by visiting our Career website.

Security clearance

LLNL is a laboratory of the Department of Energy (DOE) and the National Nuclear Security Administration (NNSA). Some positions will require a DOE L or Q clearance (please refer to the security clearance requirement above). If you are selected and authorization is required, we will initiate a federal background investigation to determine if you qualify for access to classified information or questions. In addition, all authorized L or Q employees are subject to random drug testing. An L or Q clearance requires U.S. citizenship. For more information, please see DOE Order 472.2.

COVID-19 vaccination mandate

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

Equal employment opportunities

LLNL is an affirmative action and equal opportunity employer that values ​​and hires a diverse workforce. All qualified applicants will be considered for employment regardless of race, color, religion, marital status, national origin, ancestry, sex, sexual orientation, gender identity , disability, state of health, pregnancy, protected veteran status, age, citizenship or any other characteristic protected by applicable laws.

If you require assistance and / or reasonable accommodation during the application or recruitment process, please submit a request through our online form.

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