Heavy-Ion Physics and Scientific Machine Learning Postdoctoral Researcher

We have an opening for a Postdoctoral Researcher to contribute to experimental heavy-ion physics detector development and scientific machine learning within Lawrence Livermore National Laboratorys Particle Physics Group. You will play a leading role in the analysis of data from the sPHENIX experiment at Brookhaven National Laboratory and the ATLAS experiment at CERN while contributing to DOE Office of Science Nuclear Physics (DOE-NP) and Genesis Mission-funded research milestones focused on advanced AI methods for nuclear physics. Research activities span precision measurements of jet quenching ultra-peripheral collisions detector performance studies and the development of next-generation machine learning techniques for particle reconstruction and multimodal data analysis. This position is in the Particle Physics Group within the Nuclear and Chemical Sciences Division.

Depending on your assignment this position may offer a hybrid schedule blending in-person and virtual presence. You may have the flexibility to work from home one or more days per week. 

You will

• Perform physics analyses using data from the ATLAS and sPHENIX experiments to study the quark-gluon plasma jet quenching and heavy-ion collisions.
• Participate in detector operations commissioning calibration performance studies and data quality monitoring within the ATLAS and sPHENIX collaborations.
• Develop reconstruction simulation and analysis software using modern C Python ROOT and HPC/Grid computing resources for processing multi-petabyte experimental datasets.
• Develop and apply state-of-the-art artificial intelligence and scientific machine learning techniques for particle identification jet reconstruction and event interpretation.
• Contribute to DOE-NP and Genesis-funded project milestones focused on multimodal learning detector performance improvements and scalable AI methods for experimental nuclear physics.
• Present research at collaboration meetings DOE reviews workshops and international conferences.
• Publish results in leading peer-reviewed journals.
• Collaborate with physicists computer scientists and applied mathematicians across LLNL and external institutions.
• Perform other duties as assigned.

Qualifications :

• Ph.D. in Physics Nuclear Physics High Energy Physics or a closely related discipline.
• Demonstrated research experience in experimental nuclear or particle physics.
• Experience analyzing large scientific datasets using ROOT Python C or similar scientific software frameworks.
• Experience developing scientific software in Linux environments using modern programming practices.
• Experience with statistical analysis and uncertainty quantification.
• Excellent written and verbal communication skills including publications and scientific presentations.
• Ability to work effectively in large international collaborations.

Qualifications We Desire

• Experience with the ATLAS sPHENIX RHIC LHC CMS ALICE or STAR collider experiments.
• Experience with jet physics heavy-ion collisions and detector performance studies.
• Experience in scientific machine learning deep learning foundation models or multimodal AI.
• Experience with GPU programming high-performance computing distributed computing or large-scale workflow management.
• Experience developing reconstruction simulation or detector calibration software.
• Familiarity with modern machine learning frameworks such as PyTorch and TensorFlow.

Pay Range

$123048 Annually 

This is the lowest to highest salary we in good faith believe we would pay for this role at the time of this posting.  An employees position within the salary range will be based on several factors including but not limited to specific competencies relevant education qualifications certifications experience skills seniority geographic location performance and business or organizational needs.

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

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• Flexible Benefits Package
• 401(k)
• Relocation Assistance
• Education Reimbursement Program
• Flexible schedules (*depending on project needs)
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  Remote Work :

  No

  
  

  Employment Type :

  Full-time