High Performance Computing Software Engineer (Scientist 1)

Los Alamos National Security LLC; Los Alamos (NM); On-site; USD 90,000 - 110,000; Full time

Benefits offered by this job

PPO or High-Deductible health insurance

401(k) (6% matching plus 3.5% annually)

Flexible schedules and time off

Onsite gyms and wellness programs

Job summary

Los Alamos National Security LLC is seeking candidates for a role in the Eulerian Codes Group to develop cutting-edge algorithms for parallel multi-physics codes. Candidates should have a Bachelor’s degree in STEM and experience in software optimization and communication.

This position requires excellent collaboration, modern C++ proficiency, and the ability to obtain a DOE Q Clearance. A variety of benefits including health insurance and retirement plans are included.

Qualifications

• At least 2 years of related experience.
• Ability to obtain DOE Q Clearance.
• Experience with multi-physics codes preferred.

Responsibilities

• Develop and optimize algorithms for high-performance computing.
• Research and implement applied physics and engineering models.
• Support users in adopting new methods and tools.

Skills

Software modernization and performance optimization

Massively parallel numerical development

Modern C++

Fortran

Collaboration and communication

Education

Bachelor’s degree in STEM

Tools

High performance computing architecture

C++ template metaprogramming

Job description

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, magnetohydrodynamics, 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 professional knowledge in software modernization and performance optimization.

High Performance Computing Demonstrated experience with massively parallel numerical development and simulation, and experience deploying numerical algorithms to heterogeneous computing architectures.

Software Engineering & Design Recognized proficiency with modern C++. Experience in Fortran and C, development of multi‑physics scientific codes, software engineering practices, and user support is preferred.

Collaboration Demonstrated ability to function effectively in a team environment, willingness to learn new skills, and flexibility in work assignments. Professional conduct in interactions with co‑workers and supervisors.

Communication Excellent written and oral communication skills are required.

Clearance Ability to obtain a DOE Q Clearance, which typically requires US Citizenship.

Education/Experience Bachelor’s degree in a STEM field from an accredited college or university and 2 years of related experience, or an equivalent combination of education and experience directly related to the occupation.

Desired Qualifications

C++ Expertise Experience in C++ template metaprogramming and compile‑time programming techniques along with C++ standards knowledge is preferred.

Mission Focus Experience with LANL’s mission and research environment, including impact on programmatic deliverables for the nuclear weapons program is preferred.

Education B.S. degree in applied mathematics, physics, engineering or related field. M.S. or Ph.D. may be preferred.

Work Location

The work location for this position is onsite in Los Alamos, NM. All work locations are at the discretion of management.

Position Commitment

Regular appointment employees must serve a period of continuous service in their current position 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 documented approval of their Division Leader. The position commitment for this position is 1 year.

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 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 ([e-mail])

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. 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 – This 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. The position requires a Q clearance; obtaining such clearance requires US Citizenship except in extremely rare circumstances. Depending on 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.

Equal Opportunity

Los Alamos National Laboratory is an equal‑opportunity employer. All employment practices are based on qualification and merit, without regard to protected categories such as 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, state, and local 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 [e-mail] or call (505)-664-6947.