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Computing Software Engineer; Scientist

Job in Los Alamos, Los Alamos County, New Mexico, 87545, USA
Listing for: Los Alamos National Security LLC
Full Time position
Listed on 2026-06-19
Job specializations:
  • Science
    Research Scientist
Salary/Wage Range or Industry Benchmark: 100000 - 125000 USD Yearly USD 100000.00 125000.00 YEAR
Job Description & How to Apply Below
Position: High Performance Computing Software Engineer (Scientist 3)

What You Will Do

The Eulerian Codes Group (XCP-2) is looking for exceptional candidates to develop and optimize cutting‑edge algorithms for massively parallel multi‑physics codes on heterogeneous high‑performance computing platforms. XCP‑2 staff span a wide range of computational physics disciplines including software engineering, numerical fluid and solid mechanics, materials science, radiation hydrodynamics, plasma physics, turbulence, magneto hydrodynamics, high explosives, nuclear physics and engineering, and neutral and charged particle transport.

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.

What You Need Minimum

Job Requirements:

Technical Knowledge

Demonstrated advanced‑level expertise and leadership experience in software modernization and performance optimization.

High Performance Computing

Proven expertise in developing and implementing massively parallel numerical simulations, with demonstrated experience deploying numerical algorithms across heterogeneous computing architectures.

Software Engineering & Design

Recognized proficiency with modern C++. Applicants with experience in Fortran and C languages and the development of multi‑physics scientific codes, including software engineering practices and user support, will be given preference.

Collaboration

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.

Mentorship

At this level you will be expected to have experience mentoring students, postdocs and/or more junior staff.

Funding & Project Management

Proven track record of securing and expanding funding for small to medium‑sized projects, with demonstrated experience successfully leading such projects from inception to completion.

Education/Experience

Position requires a Master’s degree in a STEM field from an accredited college or university and 6 years of relevant experience or an equivalent combination of education and experience directly related to the occupation.

Desired Qualifications
  • Master of Science degree in Applied Mathematics, Physics, Engineering, or closely related discipline preferred.
  • Proficiency in advanced C++ techniques (template metaprogramming, compile‑time programming) and C++ standards knowledge strongly preferred.
  • Experience working within LANL’s research environment and demonstrated impact on nuclear weapons program deliverables strongly preferred.
Note to Applicants

Due to federal restrictions contained in the current National Defense Authorization Act, citizens of the People's Republic of China—‑including the special administrative regions of Hong Kong and Macau—‑as well as citizens of the Islamic Republic of Iran, the Democratic People’s Republic of Korea (North Korea), and the Russian Federation, who are not Lawful Permanent Residents (“green card” holders) are prohibited from accessing facilities that support the mission, functions, and operations of national security laboratories and nuclear weapons production facilities, which includes Los Alamos National Laboratory.

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 (bmsmith)

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…
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