Los Alamos National Laboratory Senior Physicist (Scientist 4) in Los Alamos, New Mexico

What You Will Do

X-Theoretical Design (XTD) division members are the scientific stewards of the U.S. nuclear stockpile, applying theoretical and computational physics to the performance and safety of nuclear weapons. XTD scientists also contribute their expertise to the nation’s foreign threat assessment, counter-proliferation and non-proliferation efforts through assessment of foreign devices, design of tools to address nuclear emergency response scenarios, and creation of solutions to inhibit nuclear proliferation. In addition, XTD scientists drive cutting edge advances in astrophysics, geophysics, high energy density physics, inertial confinement fusion, chemistry, and material science. Members of XTD use multi-physics codes, running on some of the world’s fastest supercomputers, to create and analyze simulations of very complex systems. We work closely with many other organizations in a diverse variety of tasks, including experimental design and analysis, model development, code validation, and project leadership.

  • Demonstrate thorough knowledge and use of large, multi-physics codes.

  • Apply codes to solve problems of national security interest, exercising personal initiative to guide your own and others’ efforts.

  • Contribute to one or more of the related tasks: leading experimental design and analysis, coordinate with model development efforts, project and/or program leadership, data evaluation, and code validation.

  • Demonstrate leadership through teaming efforts.

  • Contribute to organizational knowledge level by mentoring others.

  • Continue to expand your technical knowledge.

  • Develop/demonstrate generalist capabilities in solving problems.

  • Work with a wide variety of colleagues with varying backgrounds across the laboratory on research covering multiple physics areas in order to solve difficult problems.

  • Demonstrate and maintain excellence in communication, both written and verbal.

What You Need

Minimum Job Requirements:

  • Experience with large-scale computing

  • Familiarity with design and analysis of nuclear weapons

  • Experience in designing, analyzing and/or conducting experiments

  • Demonstrated supervisory or mentoring experience

  • Knowledge and experience relative to uncertainty and/or risk analysis

  • Demonstrated technical leadership experience

  • Demonstrated leadership experience in addressing issues related to national security

  • A documented history of technical contributions to one or more of the following fields:

  • Nuclear physics

  • Plasma physics

  • Fluid dynamics

  • Astrophysics

  • Shock physics

  • Energetic materials

  • Particle physics

  • Materials science


  • A minimum of a BS degree in science from an accredited college or university required. A Ph.D. preferred with postdoctoral work in the following or a related field:

  • Physics

  • Engineering

  • Applied Mathematics

  • Material Science

  • BS or MS will be considered if there is significant demonstrated experience in the field of nuclear weapons.

Work Environment:

  • Working alone; Domestic/foreign travel

Notes to Applicants:

  • Please submit a detailed cover letter with your resume addressing your qualifications and how those qualifications meet the required and desired skills job requirements. (Please save cover letter with job number and name).

Additional Details:

Clearance: Q (Position will be cleared to this level). Applicants selected will be subject to a Federal background investigation and must meet eligibility requirements* for access to classified matter.

*Eligibility requirements: To obtain a clearance, an individual must be at least 18 years of age; U.S. citizenship is required except in very limited circumstances. See DOE Order 472.2 for additional information.

New-Employment Drug Test: The Laboratory requires successful applicants to complete a new-employment drug test and maintains a substance abuse policy that includes random drug testing.

Regular Position:Term status Laboratory employees applying for regular-status positions are converted to regular status.

Equal Opportunity:Los Alamos National Laboratory is an equal opportunity employer and supports a diverse and inclusive workforce. All employment practices are based on qualification and merit, without regards to race, color, national origin, ancestry, religion, age, sex, gender identity, sexual orientation or preference, marital status or spousal affiliation, physical or mental disability, medical conditions, pregnancy, status as a protected veteran, genetic information, or citizenship within the limits imposed by federal laws and regulations. The Laboratory is also committed to making our workplace accessible to individuals with disabilities and will provide reasonable accommodations, upon request, for individuals to participate in the application and hiring process. To request such an accommodation, please send an email to applyhelp@lanl.gov or call 1-505-665-4444 option 1.

Where You Will Work

Our diverse workforce enjoys a collegial work environment focused on creative problem solving, where everyone’s opinions and ideas are valued. We are committed to work-life balance, as well as both personal and professional growth. We consider our creative and dedicated scientific professionals to be our greatest assets, and we take pride in cultivating their talents, supporting their efforts, and enabling their successes. We provide mentoring to help new staff build a solid technical and professional foundation, and to smoothly integrate into the culture of LANL.

Compensation and Benefits

  • Competitive salaries

  • Multiple options for work schedule

  • Exercise facility free for staff use

  • Choice of comprehensive medical plans

  • Paid sick time and disability insurance

  • 401k (100% match up to 6% + kicker)

  • Fully vested in 401k on day one

Los Alamos, New Mexico enjoys excellent weather, clean air, and outstanding public schools. This is a safe, low-crime, family-oriented community with frequent concerts and events as well as quick travel to many top ski resorts, scenic hiking & biking trails, and mountain climbing. The short drive to work includes stunning views of rugged canyons and mesas as well as the Sangre de Cristo mountains. Many employees also live in the nearby state capital, Santa Fe, which is known for world-class restaurants, art galleries, and opera.

Maximum Salary: 192900

Minimum Salary: 114500

Location: Los Alamos, NM, US

Organization Name: XTD/X Theoretical Design

Job Title: Senior Physicist (Scientist 4)

Appointment Type: Regular

Req ID: IRC57660