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Modeling & Simulation Software Developer - Postdoctoral Researcher

Lawrence Livermore National Laboratory
Livermore, CA Full Time
POSTED ON 2/11/2025
AVAILABLE BEFORE 5/7/2025

Company Description

Join us and make YOUR mark on the World!

Are you interested in joining some of the brightest talent in the world to strengthen the United States' security? Come join Lawrence Livermore National Laboratory (LLNL) where our employees apply their expertise to create solutions for BIG ideas that make our world a better place.

We are committed to a diverse and equitable workforce with an inclusive culture that values and celebrates the diversity of our people, talents, ideas, experiences, and perspectives. This is important for continued success of the Laboratory's mission.

Pay Range

118,884 Annually

Job Description

We have an opening for a Modeling & Simulation Software Developer - Postdoctoral Researcher who will work with a team of scientists to develop, run, and study results from large parallel simulations related to the national defense.

This position may offer a hybrid schedule, which includes the flexibility to work from home one or more days per week, after a probationary period. The specifics of the hybrid schedule, including the exact number of days required in the office and virtual work options may vary based on the needs of the team and the organization.

You will

  • Design algorithms for efficient parallel solution of PDEs under constraints.
  • Develop code in C for an existing parallel application.
  • Analyze code performance and establish benchmarks / validation.
  • Write high-quality software with adherence to professional best practices including using Git, unit testing, and writing documentation.
  • Maintain an awareness of technical literature in relevant areas, publish research results in peer-reviewed scientific or technical journals, and present results at internal progress meetings, external conferences, seminars, and / or technical meetings.
  • Perform other duties as assigned.

Qualifications

  • Ability to secure and maintain a U.S. DOE Q-level security clearance which requires U.S. citizenship.
  • PhD in computational physics, computer science, engineering, or a related technical field.
  • Experience with the development of parallel codes, including MPI, C , and Git.
  • Experience with running parallel codes on high-performance computing infrastructure.
  • Ability to find innovative solutions to complex scientific and technical problems.
  • Interpersonal skills necessary to interact with a diverse set of scientists, engineers and other technical and administrative staff.
  • Proficient verbal and written communication skills necessary to work in a multidisciplinary team environment, author technical and scientific reports and publications and deliver scientific presentations.
  • Qualifications We Desire

  • Experience with GPU accelerated codes.
  • Experience with molecular dynamics simulation, computational fluid dynamics, or optimization methods.
  • Additional Information

    LI-Hybrid

    Position Information

    This is a Postdoctoral appointment with the possibility of extension to a maximum of three years, open to those who have been awarded a PhD at time of hire date.

    Why Lawrence Livermore National Laboratory?

  • Included in 2025 Best Places to Work by Glassdoor!
  • FlexibleBenefits Package
  • 401(k)
  • Relocation Assistance
  • Education Reimbursement Program
  • Flexible schedules (
  • depending on project needs)
  • Inclusion, Diversity, Equity and Accountability (IDEA) -
  • Our core beliefs -
  • Employee engagement -
  • Security Clearance

    This position requires a Department of Energy (DOE) Q-level clearance.If you are selected, wewill initiate a Federal background investigation to determine if youmeet eligibility requirements for access to classified information or matter. Also, all L or Q cleared employees are subject to random drug testing. Q-level clearance requires U.S. citizenship.

    Pre-Employment Drug Test

    External applicant(s) selected for this position must pass a post-offer, pre-employment drug test. This includes testing for use of marijuana as Federal Law applies to us as a Federal Contractor.

    Wireless and Medical Devices

    Per the Department of Energy (DOE), Lawrence Livermore National Laboratory must meet certain restrictions with the useand / or possession ofmobile devices in Limited Areas. Depending on your job duties, you may be required to work in a Limited Area whereyou are not permitted to have a personal and / or laboratory mobile devicein your possession. This includes, but not limited to cell phones, tablets, fitness devices, wireless headphones, and other Bluetooth / wireless enabled devices.

    Ifyou useamedical device, whichpairs with a mobile device,you must still follow the rules concerningthe mobile device in individual sections within Limited Areas. Sensitive Compartmented Information Facilities requireseparate approval. Hearing aids without wireless capabilities or wireless that has been disabled are allowed in Limited Areas, Secure Space and Transit / Buffer Space within buildings.

    How to identify fake job advertisements

    Please be aware of recruitment scams where people or entities are misusing the name of Lawrence Livermore National Laboratory (LLNL) to post fake job advertisements. LLNL never extends an offer without a personal interview and will never charge a fee for joining our company. All current job openings are displayed on the Career Page under "Find Your Job" of our website. If you have encountered a job posting or have been approached with a job offer that you suspect may be fraudulent, we strongly recommend you do not respond.

    To learn more about recruitment scams :

    Equal Employment Opportunity

    We are an equal opportunity employer that is committed to providing all with a work environment free of discrimination and harassment. All qualified applicants will receive consideration for employment without regard to race, color, religion, marital status, national origin, ancestry, sex, sexual orientation, gender identity, disability, medical condition, pregnancy, protected veteran status, age, citizenship, or any other characteristic protected by applicable laws.

    We invite you to review the Equal Employment Opportunity posters which include EEO is the Law and Pay Transparency Nondiscrimination Provision.

    Reasonable Accommodation

    Our goal is to create an accessible and inclusive experience for all candidates applying and interviewing at the Laboratory. If you need a reasonable accommodation during the application or the recruiting process, please use our online form to submit a request.

    CaliforniaPrivacy Notice

    The California Consumer Privacy Act (CCPA) grants privacy rights to all California residents. The law also entitlesjob applicants, employees, and non-employee workers to be notified of what personal information LLNL collects and for what purpose. The Employee Privacy Notice can be accessed here.

    Salary : $118,884

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