Systems Design and Analysis Post-Master's Student | Los Alamos, NM | Los Alamos National Laboratory

Systems Design and Analysis Post-Master's Student

What You Will Do

The Systems Design and Analysis Group (NEN-5) is seeking one or more high-performing Post-Master's degree researchers to work in the area of nuclear systems, ranging from nuclear systems design, development of computational methodologies, high-fidelity simulations of nuclear systems, to system-level synthesis of results, data, and models. Our staff focuses upon a broad spectrum of nuclear system applications including special purpose reactor design and demonstration for space and terrestrial applications, radiation transport code applications, high fidelity simulation of nuclear systems and nuclear fuels, systems modeling, nuclear fuel cycles and nuclear security. Recent successes include the design, development, and testing of a prototype fission reactor named Kilowatt Reactor Using Stirling Technology (KRUSTY). Our diverse workforce enjoys a collegial work environment focused on creative problem solving, where everyone's opinions and ideas are considered.

With great breadth in the programs supported by NEN-5, it is not essential for candidates to have expertise in all technical areas of interest. Depending on the specific skill set of the selected candidate, there will be opportunities to work in one or more of the following areas:
  • Solve important and challenging radiation transport or reactor safety problems for a variety of applications.
  • Develop and/or apply tools for high-fidelity simulations of reactor systems.
  • Perform high-fidelity computational modeling for a range of phenomena including one or more of the following: neutronics, thermal hydraulics, nuclear fuel performance or other thermo-mechanical processes.
  • Analyze reactor designs, including analysis of issues related to one or more of the following: neutronics, structural mechanics, heat transfer, fluid flow, or safety.
  • Develop algorithms or models to represent complex data sets with constitutive relationships representing dependencies between sub-systems.
  • Develop methods to manage large data sets at different levels of resolution and time scales to simulate systems operations.
  • Apply operations research and/or systems engineering techniques and methodologies to problems of asset/resource management and trade-space studies.
  • Develop system models to represent business or programmatic units, understanding interdependencies.
  • Modeling and simulation work with first principle physics-based hydro-structural codes.

The successful candidate will be required to:
  • Execute high quality modeling and/or simulation research resolving nuclear energy, nuclear weapons, or nuclear security challenges.
  • Participate in a fast-paced work environment and interface between multiple disciplines.
  • Document and/or present advanced technical work clearly and effectively.
  • Undertake domestic travel as periodically required based on programmatic needs.

There are opportunities for technically advanced work performed here to be published in journals or conference proceedings.

What You Need

Minimum Job Requirements:

Technical Knowledge
  • Demonstrated expertise in modeling and simulations related to one or more of the following disciplines: nuclear engineering, radiation transport calculations, reactor depletion simulations, computational thermal, solid, or fluid modeling, nuclear fuels and/or materials, nuclear chemistry, process modeling, nonproliferation, stockpile analysis, or related research areas.

Professional Integrity
  • Demonstrated commitment to quality research, technical and scientific excellence, professional integrity, and personal initiative.

  • Excellent interpersonal, oral, and written communication skills.

  • Proven ability to work independently and in multi-organizational teams.
  • Demonstrated ability to foster an environment of teamwork, quality, technical excellence, innovation, and creativity.
  • Demonstrated ability to manage multiple tasks and set priorities.

  • The ability and willingness to obtain a DOE Q clearance, which typically requires US citizenship.

Education/Experience: Position requires a MS in nuclear engineering, physics, mechanical engineering, or a closely related technical field of study from an accredited institution. Eligibility is limited to students who have completed a MS within the past 3 years, and have not yet been accepted into another master's program or PhD program. Minimum final cumulative GPA of 3.2 of 4.0, or its equivalent.

Desired Qualifications:

Demonstrated experience in one or more areas of nuclear science or engineering:
  • Nuclear systems, reactor design, or high-fidelity reactor simulations.
  • Advanced knowledge in designing reactors or in developing multi-physics models of nuclear systems.
  • Modeling and simulation tools for one or more of the following: radiation transport, depletion, fuel performance, systems, thermal-hydraulics, or CFD modeling.
  • Experience in complex systems modeling, including analysis, optimization, uncertainty, and sensitivity analysis.
  • Lower length scale phenomenological modeling.
  • Familiarity with emerging reactor technologies, nuclear fuel cycles or their vulnerabilities to diversion or theft.
  • Working knowledge of radiation detection.
  • Familiarity with material processing, fabrication, or metallurgy.
  • Familiarity with risk analysis tools.
  • Familiarity with nuclear security concepts.

Demonstrated experience in one or more of these computational areas:
  • Experience in modeling and simulation using one or more of the following: radiation transport codes (such as MCNP, Serpent, OpenMC, other), burn or depletion codes, or fuel performance codes (such as MOOSE/BISON).
  • Application of multi-physics simulation tools such as the MOOSE-based suite or VERA simulation environment.
  • Familiarity with Finite Element Analysis (FEA).
  • Familiarity with computational fluid dynamics codes (such as Fluent or Star-CCM) or nuclear thermal hydraulics codes (such as TRACE or RELAP).
  • Familiarity with first principle physics-based hydro-structural codes.
  • Facility with parallel computing.
  • Facility with visualization or processing of large, complex scientific datasets.
  • Familiarity with machine learning, artificial intelligence, or data analytics.
  • Ability to program and knowledge of one or more programming languages such as Python, Java, SQL, Perl, C++, or Fortran.
  • Advanced programming skills or experience linking simulation tools.

Publication record in one or more of the following areas:
  • Nuclear engineering, physics, mechanical engineering, or other closely related technical field of study.

Active DOE Q clearance

Location: This position will be located in Los Alamos, NM.

COVID Vaccine:

The COVID vaccine is mandatory for all Laboratory employees, on-site contractors, and on-site subcontractors unless granted an accommodation under applicable state or federal law. This requirement will apply to those working on-site, those teleworking, and all new hires.

Note to Applicants: In addition to the resume or CV, you must include a cover letter addressing each of the minimum job requirements and desired skills.
Where You Will Work

Located in northern New Mexico, Los Alamos National Laboratory (LANL) is a multidisciplinary research institution engaged in strategic science on behalf of national security. LANL enhances national security by ensuring the safety and reliability of the U.S. nuclear stockpile, developing technologies to reduce threats from weapons of mass destruction, and solving problems related to energy, environment, infrastructure, health, and global security concerns.
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). Applicants selected will be subject to a Federal background investigation and must meet eligibility requirements* for access to classified matter. This position requires a Q clearance which requires US Citizenship except in extremely rare circumstances. Dependent upon position, additional authorization to access nuclear weapons information may be required that may or may not be available to dual citizens depending upon the circumstances.

*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.

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.

For general program information refer to the Student Programs web page.
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 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 or call 1-505-665-4444 option 1.

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