Nuclear Thermal Analysis Engineer – Design & Simulations

X-energy; Gaithersburg, Northern (MD, KY); Hybrid; USD 75,000 - 140,000; Full time

Benefits offered by this job

401K with employer match

Medical/Dental/Vision Insurance

Life and Disability Insurance

Paid Time Off

Tuition Reimbursement/Professional Dev

Job summary

X Energy, LLC is seeking Thermal Analysis Engineers to design and develop mechanical systems, structures, and components for nuclear products, with a strong emphasis on safety and compliance. You will evaluate concepts, perform analyses, and guide prototypes and testing to ensure performance from concept to commissioning.

The role requires hands-on use of 1D flow-solvers and engineering hand calculations, collaborating with project leads and systems engineers.

Qualifications

• Bachelor's degree in mechanical engineering or related field from an accredited institution.
• Experience levels: Level I (0+ yrs), Level II (2+ yrs), Level III (5+ yrs) in engineering roles.
• Proficiency with engineering hand calculations and use of 1D flow-solvers for heat/energy and mass balance.
• Familiarity with industry codes and standards and ability to document design basis and criteria.

Responsibilities

• Develop mechanical concepts and support SSC design for nuclear products or facilities.
• Plan and perform analyses to ensure SSCs meet technical requirements and design criteria.
• Support reactor and plant control philosophy in models, simulations, and digital twins.
• Size and analyze components like heat exchangers, pumps, and turbomachinery.
• Prepare design documentation, V&V plans, and adherence to quality procedures.

Skills

Engineering hand calculations

Proficiency with hand calculations

Education

Bachelor's degree in mechanical engineering

Tools

RELAP

Flownex

NPSS

SINDA/FLUINT

Flomaster

Job description

X Energy, LLC is seeking Thermal Analysis Engineers to design and develop mechanical systems, structures, and components for nuclear products, with a strong emphasis on safety and compliance. You will evaluate concepts, perform analyses, and guide prototypes and testing to ensure performance from concept to commissioning.

The role requires hands-on use of 1D flow-solvers and engineering hand calculations, collaborating with project leads and systems engineers.