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August 29, 2025

**Job Description**
The Fusion Energy Division (FED) at Oak Ridge National Laboratory invites applications for a Nuclear Engineering position focused on developing the technical basis for the first fusion nuclear facility. The role involves designing, analyzing, and optimizing fluid flows in tritium breeding blankets, utilizing computational fluid dynamics (CFD), thermal hydraulic, and magnetohydrodynamic (MHD) analyses. The successful candidate will leverage advanced analytical and computational skills to use and modify open-source codes, explore integrated design and optimization of tritium breeding blanket systems and related components, and collaborate with a multidisciplinary team.

**Skills & Abilities**
• Advanced analytical and computational skills
• Ability to use and modify open-source codes
• Experience in computational fluid dynamics or thermal hydraulic simulation
• Proven scientific research ability evidenced through peer-reviewed publications and/or presentations at technical conferences
• Excellent communication skills including verbal, presentation, and writing skills
• Passion for R&D and commitment to fostering team growth
• Background in nuclear engineering (Preferred)
• Experience using thermal hydraulics models and codes (Preferred)
• Experience using the MOOSE framework (Preferred)
• Familiarity with magnetohydrodynamic (MHD) flow (Preferred)
• Experience in design and analysis of fusion reactor components, specifically tritium breeding blankets (Preferred)
• General familiarity with a variety of blanket concepts (solid, liquid metal, and molten salt breeders) (Preferred)
• Experience in the analysis of heat transfer systems (Preferred)
• Working knowledge of computer languages such as C++, FORTRAN, or Python (Preferred)
• Experience with computer aided design (CAD) software (Preferred)

**Qualifications**
Required Degree(s) in:
• Mechanical Engineering
• Nuclear Engineering
• Physics
• Closely related field of study

**Experience**
Other:
• Ability to obtain and maintain a federal Personal Identity Verification (PIV) card or a favorable Local Site Specific Only (LSSO) risk determination for foreign nationals.

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Experience
Other: • Ability to obtain and maintain a federal Personal Identity Verification (PIV) card or a favorable Local Site Specific Only (LSSO) risk determination for foreign nationals.
Work Level
Ph.D
Employment Type
Research Job, See Details
Salary
Benefits: Prescription Drug Plan, Dental Plan, Vision Plan, 401(k) Retirement Plan, Contributory Pension Plan, Life Insurance, Disability Benefits, Generous Vacation and Holidays, Parental Leave, Legal Insurance with Identity Theft Protection, Employee Assistance Plan, Flexible Spending Accounts, Health Savings Accounts, Wellness Programs, Educational Assistance, Relocation Assistance, Employee Discounts, on-site fitness, banking, and cafeteria facilities.
Details
See Details
School / Department / Center / Lab
• Fusion Energy Division (FED) • Blanket & Fuel Cycle Group
Supervisor Email
careers@ornl.gov
Oak Ridge National Laboratory (ORNL)
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