Postdoctoral Appointee - Computational Modeling and Simulation Code Verification and VVUQ, Onsite

Postdoctoral Appointee - Computational Modeling and Simulation Code Verification and VVUQ, Onsite

The Verification, Validation, and Uncertainty Quantification (VVUQ) Department seeks a Postdoctoral Computational Engineer or Computational Physicist to conduct code verification research across physics disciplines. The role includes developing verification methods, collaborating with subject matter experts, and publishing results. The position is onsite; relocation will be provided for eligible candidates.

• Implement and use manufactured and exact solutions for verification of computational physics codes across multiple physics disciplines.
• Develop novel or rigorous techniques to support verification efforts and modify existing codes to incorporate these capabilities.
• Document, publish, and present work both internally and externally.
• Provide assistance with other departmental focus areas.

• PhD in engineering or natural science conferred within five years of start date.
• Background in computational physics covering at least one discipline such as fluid dynamics (CFD), solid mechanics, electromagnetics (EM), heat transfer, radiation, plasma, etc.
• Background in numerical methods such as finite elements, finite differences, finite volumes, particle‑in‑cell, Monte Carlo, deterministic radiation transport, or similar PDE and integro‑PDE solvers.
• Interest in performing verification, validation, and/or uncertainty quantification.
• Openness to work across multiple physics disciplines.
• Strong verbal and written communication skills; ability to collaborate with technical colleagues from diverse backgrounds.
• Capability to obtain and maintain a Department of Energy Q clearance.

• Experience in code and solution verification, including use of exact and manufactured solutions (MMS).
• Proficiency in programming languages such as Fortran, C, or C++.
• Experience with scripting languages such as MATLAB or Python.
• History of publishing in peer‑reviewed journals and presenting at scientific conferences.

• Temporary position up to one year, renewable up to five additional years at the discretion of Sandia.
• PhD must be conferred within five years prior to employment.
• On‑site work required; relocation assistance to be provided for qualified candidates.

• Requires ability to obtain and maintain a DOE Q‑level clearance; U.S. citizenship required.
• Applicants may be subject to background checks and drug testing per DOE requirements.

All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, age, disability, veteran status, or any other protected class under state or federal law.

• Employees with medical portable electronic devices (MedPEDs) may need to comply with NNSA security requirements for MedPEDs during employment and interview.