Thermal-Hydraulics Engineer

Ellaway Blues Consulting; Town of Texas (WI); On-site; USD 112,000 - 175,000; Full time

Benefits offered by this job

Medical insurance

Vision insurance

Job summary

A consulting firm in energy technology is seeking a Thermal-Hydraulics Engineer to support advanced reactor designs and simulations. The ideal candidate will possess a Bachelor's degree in Nuclear Engineering and extensive experience with thermal-hydraulic modeling, CFD simulations, and data analysis. This full-time opportunity in Texas offers career growth in a dynamic environment with competitive benefits.

Qualifications

• 3–10 years of experience in thermal-hydraulic simulation.
• Experience with sodium or liquid-metal-cooled reactors.
• Strong scripting skills in Python or MATLAB.

Responsibilities

• Develop thermal-fluid models for advanced reactor systems.
• Perform CFD simulations for flow behavior analysis.
• Collaborate with teams on model integration.

Skills

Thermal-hydraulic modeling

CFD simulations

Data analysis skills

Education

Bachelor's degree in Nuclear Engineering

Tools

RELAP5-3D

ANSYS Fluent

Python

Job description

Direct message the job poster from Ellaway Blues Consulting

Business Development Director at Ellaway Blues Consulting

Thermal-Hydraulics Engineer – Advanced Reactor Systems

We’re looking for a Thermal-Hydraulics Engineer to support the design, modeling, and experimental testing of advanced liquid-metal reactor technologies. This position focuses on evaluating system-level thermal-fluid behavior, improving passive safety performance, and advancing high-fidelity simulation tools.

The ideal candidate brings strong technical expertise in thermal-hydraulic modeling, experience with liquid-metal or low Prandtl number systems, and the ability to collaborate across disciplines to inform system design and safety validation.

Key Responsibilities

• Develop steady-state and transient thermal-fluid models for advanced reactor systems using system codes such as RELAP5-3D, SAM, or TRACE.
• Perform CFD and subchannel simulations using commercial tools (e.g., ANSYS Fluent, STAR-CCM+, CTF) to evaluate flow behavior and heat transfer across reactor components.
• Support thermal-fluid testing activities, including the development of test plans, data analysis, and model validation for sodium-cooled systems.
• Collaborate closely with core design, safety analysis, systems engineering, and control teams to ensure accurate integration of thermal-hydraulic models across design phases.
• Evaluate modeling tools for capability gaps and propose enhancements aligned with regulatory expectations and industry standards.
• Prepare clear technical documentation, including analysis reports, test summaries, and design review materials.

Qualifications

Education & Experience

• Bachelor’s degree (or higher) in Nuclear Engineering, Mechanical Engineering, or a related field with a focus on thermal-fluid sciences.
• 3–10 years of experience in thermal-hydraulic simulation and system-level modeling, ideally involving sodium or other liquid-metal-cooled reactors.

Technical Skills

• Proficiency with system analysis codes such as RELAP5-3D, SAM, or TRACE.
• Experience with CFD and subchannel analysis tools (e.g., Fluent, CTF, STAR-CCM+, OpenFOAM).
• Familiarity with MOOSE-based platforms (e.g., PRONGHORN, BISON) is a plus.
• Strong scripting and data analysis skills (Python, MATLAB, etc.).
• Understanding of thermal-fluid behavior in low Prandtl number systems.
• Awareness of verification and validation practices in nuclear applications.

Seniority level

• Seniority level

  Mid-Senior level

Employment type

• Employment type

  Full-time

Job function

• Industries

  Electric Power Generation, Energy Technology, and Services for Renewable Energy

Referrals increase your chances of interviewing at Ellaway Blues Consulting by 2x

Inferred from the description for this job

Medical insurance

Vision insurance

Get notified about new Thermal Engineer jobs in Texas, United States.

Modeling and Simulation Engineer - TX - On Site

Pipeline and Pump Station Project Engineer

Richardson, TX $112,000.00-$175,000.00 2 weeks ago

Foundations - Project Engineer - Gulf Coast

Austin, Texas Metropolitan Area 4 months ago

Austin, TX $127,000.00-$165,000.00 2 weeks ago

Dallas, TX $80,000.00-$100,000.00 2 weeks ago

ENGINEER - RESEARCH ENGINEER - Ocean Simulation Lab

Foundations - Project Engineer - Gulf Coast

VIE - Modelling & Simulation Engineer(M/F/D)

Fort Worth, TX $90,000.00-$175,000.00 3 days ago

Frisco, TX $95,000.00-$135,000.00 2 weeks ago

Flow Assurance Simulation Engineer - Energy Simulation

Modeling & Simulations Engineer-FEA,CFD,LS-DYNA

Dallas, TX $78,720.00-$108,240.00 1 day ago

We’re unlocking community knowledge in a new way. Experts add insights directly into each article, started with the help of AI.