United States Job Openings

Argonne National Laboratory

Postbaccalaueate Appointment - Computational Cosmology

Lemont

FULL TIME

October 16, 2024

In this position, the Postbaccalaureate Appointee will join our Computational Science Division (CPS) to work consisting of theory, modeling, and code development in computational cosmology. It will also require the use of AI and machine learning techniques. The codes developed will run on Argonne’s Aurora exascale computer system. The results of this work support large DOE-sponsored sky surveys such as the Rubin Observatory’s Legacy Survey of Space and Time (LSST).

The work involves modifying the evolution equations and initial conditions; it will also involve the use of AI methods for improving the scientific capability of the code and its analysis tools. The candidate will also be working with partial differential equations, particle methods, quantum evolution equations, large-scale parallel computing involving GPUs, and the use of generative AI techniques, especially foundation models for scientific applications.

Job Tasks:

Develop and test a parallel nonlinear Poisson solver and write a report on its properties and performance.
Port a 3D Schrodinger solver written in Julia to the HACC framework and write a report on its convergence properties and performance.
Work on integrating AI methods in HACC to improve the dynamic range of the code. Write a report describing the results obtained.

Position Requirements

Recently completed Bachelors degree in computer science and/or physics
Programming experience with one or more programming languages, such as C++, CUDA, and MPI for parallel programming.
Effective collaboration skills and ability to work in a team environment
Ability to model Argonne’s Core Values: impact, safety, respect, integrity, and teamwork

Job Family

Temporary Family

Job Profile

Postbaccalaureate Appointee

Worker Type

Long-Term (Fixed Term)

Time Type

Full time

As an equal employment opportunity and affirmative action employer, and in accordance with our core values of impact, safety, respect, integrity and teamwork, Argonne National Laboratory is committed to a diverse and inclusive workplace that fosters collaborative scientific discovery and innovation. In support of this commitment, Argonne encourages minorities, women, veterans and individuals with disabilities to apply for employment. Argonne considers all qualified applicants for employment without regard to age, ancestry, citizenship status, color, disability, gender, gender identity, gender expression, genetic information, marital status, national origin, pregnancy, race, religion, sexual orientation, veteran status or any other characteristic protected by law.

Argonne employees, and certain guest researchers and contractors, are subject to particular restrictions related to participation in Foreign Government Sponsored or Affiliated Activities, as defined and detailed in United States Department of Energy Order 486.1A. You will be asked to disclose any such participation in the application phase for review by Argonne's Legal Department.

All Argonne offers of employment are contingent upon a background check that includes an assessment of criminal conviction history conducted on an individualized and case-by-case basis. Please be advised that Argonne positions require upon hire (or may require in the future) for the individual be to obtain a government access authorization that involves additional background check requirements. Failure to obtain or maintain such government access authorization could result in the withdrawal of a job offer or future termination of employment.

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