Thermal Hydraulics Engineer

First Job Previous Job 1,216 of 2,859 Next Job Last Job Share More Like This Between $56.00 and $95.00 Per Hour DOE (Depends on Experience) Thermal Hydraulics Engineer MAXIMUS

Occupation:

Nuclear Engineers

Location:

Jefferson City, MO - 65109

Job Type:

Regular, Full Time (30 Hours or More), Permanent Employment

Posted:

05/26/2026 Positions available: 1

Source:

MoJobs

Web Site:

MoJobs Onsite /

Remote:

Work at home all of the time

Updated:

05/26/2026

Expires:

07/25/2026 Job #: 13821460 Job Requirements and Properties Help for Job Requirements and Properties. Opens a new window. Veteran Friendly Telework & Remote Full Time Education Bachelor's Degree Experience 72 Month(s) Age 18 and up Schedule Full Time Job Type Regular Duration Permanent Employment Public Transit Available Benefits Job Description Help for Job Description. Opens a new window. The role involves developing and validating thermal hydraulic analysis methods to support the design and licensing of advanced reactor systems. The engineer will contribute to system transient code development, perform reactor transient analyses, and assist with code benchmarking, verification, and validation activities. Responsibilities Develop system-level thermal hydraulic analysis methods, including modeling strategies and numerical approaches. Perform steady-state and transient system-level analyses to characterize model behavior and assess method performance. Support method qualification through verification, applicability assessments, and performance characterization. Formulate and integrate closure models and empirical correlations into existing analysis frameworks. Identify modeling gaps and support method enhancement through sensitivity studies. Develop automated workflows and tools for model setup, execution, and post-processing. Document modeling methodologies, assumptions, and numerical performance for design and licensing activities. Coordinate with other disciplines to ensure effective integration of thermal hydraulic methods within plant design and safety analysis workflows. Apply and improve quality assurance practices to ensure traceability and reproducibility of modeling efforts. Qualifications Degree in Mechanical, Nuclear, Chemical Engineering, or similar fields. 6+ years of experience in system-level thermal hydraulic modeling and method development for nuclear or energy systems. Demonstrated experience in developing or improving analysis methods, including numerical scheme development and stability/accuracy optimization. Experience with thermal hydraulic simulation tools such as RELAP5 3D, GOTHIC, SAS, or equivalent. Strong foundation in thermal fluids and reactor system behavior, including advanced reactor phenomena. Experience conducting sensitivity analyses and identifying modeling gaps. Familiarity with scientific programming and workflow automation using Python, MATLAB, or similar tools. Understanding of NQA 1 quality assurance practices for modeling workflows, including documented methodologies and configuration control. Strong analytical thinking, technical communication skills, and the ability to manage multiple development efforts simultaneously. We thank all applicants for their interest. However, only those qualified individuals who closely meet the qualifications of the position will be contacted. The details of the position are only a summary, other duties may be assigned as necessary. Background Check and Drug Screen may be required.