Thermal Analysis Engineer

X-energy; Rockville (MD); On-site; USD 70,000 - 163,000; Full time

Benefits offered by this job

401K plan with an employer match

Medical/Dental/Vision Insurance

Life and Disability Insurance

Paid Time Off

Tuition Reimbursement/Professional Dev

Job summary

X-energy seeks Thermal Analysis Engineers to design and develop mechanical systems, structures, and components for nuclear products. Responsibilities include concept development, analysis, prototyping, testing, and commissioning to meet technical specs.

Roles involve system-level thermodynamics, heat exchangers, pumps, and turbomachinery sizing and validation. The position emphasizes collaboration with systems engineers, documentation, and adherence to quality procedures, with onsite work and

Qualifications

• Bachelor’s degree in mechanical engineering or related discipline from an accredited institution.
• Level I: typically zero years of experience; Level II: typically two years; Level III: typically five years.
• Proficiency with engineering hand calculations is required.
• Use of 1D flow-solvers performing heat/energy and mass balance (e.g., RELAP, Flownex, NPSS, SINDA/FLUINT, Flomaster, or similar).

Responsibilities

• Develop mechanical/physical concepts, design and support development of SSCs for nuclear products or facilities with a focus on nuclear safety.
• Plan and perform analyses to ensure SSCs meet technical specs and design requirements.
• Perform thermodynamic analyses and system-level simulations to support reactor and subsystem design iterations.
• Support manufacturability, assembly, and integration considerations for SSCs.
• Write design documentation and develop V&V plans for analytical tools.

Skills

Engineering hand calculations

1D flow-solvers

Education

Bachelor’s degree in Mechanical Engineering

Tools

RELAP

Flownex

NPSS

SINDA/FLUINT

Flomaster

Job description

Job Description

X-energy is seeking Thermal Analysis Engineers responsible for the engineering design and development of mechanical systems, structures, and components. This includes concept development, evaluation of concepts, analysis of systems, structures, and components for their ability to perform their intended function, and ensuring they meet all technical specifications and requirements. The role will ensure the development of the systems and components through production including any necessary prototyping, testing, and commissioning.

Responsibilities

• Develop mechanical/physical concepts, design and support development of processes to create or identify structures, systems, and components (SSCs) for use in nuclear products or facilities with a focus on nuclear safety.
• Identify, collect, and document applicable requirements, interfaces, design basis and criteria by coordinating with key stakeholders/systems engineers and support identifying applicable industry codes and standards and the direction of project leads and systems engineers.
• Planning and performing the analysis required to assess aspects of the SSCs to ensure they can perform their intended functions and meet technical specifications and design requirements.
• Perform computations utilizing hand calculations and analytical tools for structural, thermal, hydraulic, and other scoping calculations as required at the direction of project leads and systems engineers to ensure SSCs can meet technical requirements.
• Support the development of reactor and plant control philosophy and implement in plant models, simulations, and digital twins.
• Support the sizing and analysis of components including heat exchangers, pumps, circulators, and turbomachinery.
• Perform system-level thermodynamic analyses and process design using system-level simulation codes to support design iterations of X-energy developed reactors and supporting subsystems.
• Support the assessment of SSCs for manufacturability as well as assembly and integration considerations at the direction of project leads.
• Write and develop design documentation including design basis documents, technical reports, calculations, and drawings in accordance with applicable procedures.
• Develop Verification and Validation (V&V) plans for analytical tools and support qualification of toolset.
• Perform work in accordance with X-energy quality procedures for design and configuration management to ensure project quality requirements are met.
• Provide independent reviews and acceptance reviews of engineering deliverables and data.
• Maintain professional demeanor and behavior at all times in all forms of communication.
• Perform other duties as assigned by manager.

Qualifications

• Bachelor’s degree in mechanical engineering, or related engineering discipline (e.g., nuclear aerospace, chemical, etc.) from an accredited institution required.
• Level I: Typically, zero years of experience in an engineering role required.
• Level II: Typically, two years of experience in an engineering role required.
• Level III: Typically, five years of experience in an engineering role required.
• Proficiency with engineering hand calculations is required.
• Use of 1D flow‑solvers performing heat/energy and mass balance (e.g., RELAP, Flownex, NPSS, SINDA/FLUINT, Flomaster, or similar).

Location

530 Gaither Road, Rockville, MD

Work Site Expectations

4 days in office

Travel Expectations

Up to 10% as needed

Hours

8:00 am - 5:00 pm, Mon‑Fri

Compensation

As required by Maryland and other applicable state law, X Energy, LLC (X‑energy) lists the expected compensation range for a publicly advertised job opportunity based upon the job requirements (e.g. education/training, experience, skill sets, etc.). Individual candidates who meet the job requirements for the posted position will be offered a salary within this range based on their respective levels of education/training, experience, and other qualifications unique to them. Salary ranges may vary based on the specific office location and region referenced in the posting to take into consideration differences in cost of living and may not be reflective of all regions. Please note that compensation ranges listed for US job postings reflect base salary only and do not include benefits or other incentives.

Level I: $70,050 – $116,750
Level II: $79,500 – $132,500
Level III: $97,875 – $163,125

Position Job Classification

Full time – Exempt

Benefits

• 401K plan with an employer match
• Medical/Dental/Vision Insurance
• Life and Disability Insurance
• Paid Time Off
• Tuition Reimbursement/Professional Development policy

Equal Opportunity Employer

All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, or protected veteran status and will not be discriminated against on the basis of disability.

X Energy, LLC participates in E-Verify.