Computational Physicist (Scientist 1)

What You Will Do

Are you interested in a career in computational physics? If the answer is "yes" we invite you to learn more about our opening for an early career Computational Physicist.

Technical Areas of Interest:

  • High explosives, reactive flow, and chemical kinetics
  • Adaptive mesh refinement and mesh data structures
  • Equations of state, solid mechanics, material strength and damage
  • Neutral particle transport, nuclear physics, and nuclear engineering
  • Plasma physics, charged particle transport, thermal conduction, and laser physics
  • Compressible hydrodynamics, particle hydrodynamics, shock physics, fluid mechanics, and computational fluid dynamics
  • Performance optimization and porting algorithms to heterogenous computing architectures (e.g., CUDA, HIP, OpenMP, Kokkos, RAJA)

The Eulerian Codes Group (XCP-2) develops and maintains large scale, massively parallel multi-physics codes as part of the Advanced Scientific Computing (ASC) Program. XCP-2's staff span a wide range of computational physics modeling disciplines including the following: numerical fluid and solid mechanics, materials science, radiation hydrodynamics, plasma physics, turbulence, magnetohydrodynamics, high explosives, nuclear physics and engineering, and neutral and charged particle transport. Other XCP-2 research efforts focus on the development and optimization of cutting-edge physics algorithms for performance on both homogeneous and heterogeneous high-performance computing platforms. The duties of our well-compensated professionals include research and development of applied physics and engineering models, the implementation of these methods into production codes using excellent software development practices, the testing and validation of these methods, and the education and support of users as they adopt these methods. We facilitate mentoring for new staff to build skills quickly, and we work within a dynamic multi-physics team environment that facilitates productive and collaborative relationships with our software users, other software teams, and with theoreticians and experimentalists across LANL.

What You Need

Minimum Job Requirements:

Technical Knowledge
Knowledge and experience in computational modeling of one or more of the technical areas of interest listed above.

Software Engineering & Design

Understanding and proficiency with modern Fortran, C, or C++ and/or experience in the development of multi-physics scientific codes, including software engineering practices and user support.

Teamwork is essential to the success of our group. As such you will need to have demonstrated the ability to function effectively in a team environment with a willingness to learn new skills and be flexible in work assignments. This includes exhibiting professional conduct in interactions with co-workers and supervisors.

Communication skills are critical in our group. Excellent written and oral communication skills are required.

Education/Experience: Position requires a bachelor's degree in a STEM Field in applied mathematics, physics, engineering or related field and 2 years of related experience, or an equivalent combination of education and experience directly related to the occupation.

Desired Qualifications:
Preference will be given to candidates with a M.S. or Ph.D.

High Performance Computing
It would be great if you have experience with massively parallel numerical development and simulation, and experience deploying numerical algorithms to heterogeneous computing architectures.

Mission Focus
Candidates that demonstrate experience with LANL's mission and research environment including impact on programmatic deliverables for the nuclear weapons program will be given preference.

Work Environment:
Work Location: The work location for this position is onsite and located in Los Alamos, NM. All work locations are at the discretion of management.

Position commitment: Regular appointment employees are required to serve a period of continuous service in their current position in order to be eligible to apply for posted jobs throughout the Laboratory. If an employee has not served the time required, they may only apply for Laboratory jobs with the documented approval of their Division Leader. The position commitment for this position is 1 year.

Note to Applicants: Applicants should submit a CV/Resume and cover letter. The cover letter should be composed of a one-page career narrative followed by a bulleted list of the applicant's relevant experience for each requirement.
Contact: Brandon Smith (

Where You Will Work

Located in beautiful northern New Mexico, Los Alamos National Laboratory (LANL) is a multidisciplinary research institution engaged in strategic science on behalf of national security. Our generous benefits package includes:

§ PPO or High Deductible medical insurance with the same large nationwide network

§ Dental and vision insurance

§ Free basic life and disability insurance

§ Paid childbirth and parental leave

§ Award-winning 401(k) (6% matching plus 3.5% annually)

§ Learning opportunities and tuition assistance

§ Flexible schedules and time off (PTO and holidays)

§ Onsite gyms and wellness programs

§ Extensive relocation packages (outside a 50 mile radius)
Additional Details

Directive 206.2 - Employment with Triad requires a favorable decision by NNSA indicating employee is suitable under NNSA Supplemental Directive 206.2. Please note that this requirement applies only to citizens of the United States. Foreign nationals are subject to a similar requirement under DOE Order 142.3A.

Clearance: Q (Position will be cleared to this level). Selected applicants will be subject to a background investigation conducted by or on behalf of the Federal Government, and must meet eligibility requirements* for access to classified matter. This position requires a Q clearance. and obtaining such clearance requires US Citizenship except in extremely rare circumstances. Dependent upon the position, additional authorization to access classified information may be required, which may or may not be available to dual citizens. Receipt of a Q clearance and additional access authorization ultimately is a decision of the Federal Government and not of Triad.

*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. Although New Mexico and other states have legalized the use of marijuana, use and possession of marijuana remain illegal under federal law. A positive drug test for marijuana will result in termination of employment, even if the use was pre-offer.

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

Internal Applicants: Regular appointment employees who have served the required period of continuous service in their current position are eligible to apply for posted jobs throughout the Laboratory. If an employee has not served the required period of continuous service, they may only apply for Laboratory jobs with the documented approval of their Division Leader. Please refer to Policy Policy P701 for applicant eligibility requirements.
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 regard to race, color, national origin, ancestry, religion, age, sex, gender identity, sexual orientation, 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 or call 1-505-665-4444 option 1.