Job description

X-energy LLC conducts a thorough recruiting process and will never issue offers without interview to discuss qualifications and responsibilities. All applications will be submitted via our company career page, www.x-energy.com/careers/ . We will never ask you to provide payment information as part of the recruiting process. If anyone claiming to represent X-energy directs you in a manner otherwise, please contact us at www.x-energy.com/contact-us . 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: 9801 Washingtonian Boulevard, Gaithersburg, Maryland Work Site Expectations: 4 days in office Travel Expectations: Up to 10% as needed Hours: 8:00am - 5:00pm, 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. Offers within the posted salary range are commensurate with the individual’s qualifications for the position, along with a view on internal equity, market data, and room for growth. The salary range for this position is: Level I: $75,000 - $100,000 Level II: $95,000 - $120,000 Level III: $115,00- $140,000 Position Job Classification Full time - Exempt Benefits X Energy, LLC offers a robust benefits package that includes a 401K plan with an employer match, Medical/Dental /Vision Insurance, Life and Disability Insurance, Paid Time Off, and a Tuition Reimbursement/Professional Development policy that supports the continuing education of our employees. An 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. Please visit the links below for more information about E-Verify and the protection of your Right to Work. Right To Work Link: If you have the right to work, don t let anyone take it away (e-verify.gov) E-Verify Participation Link: E-Verify Participation Poster English and Spanish

Requirements

Must-haves

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.
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.
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.
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: 9801 Washingtonian Boulevard, Gaithersburg, Maryland
Work Site Expectations: 4 days in office
Travel Expectations: Up to 10% as needed
Hours: 8:00am - 5:00pm, Mon-Fri

Nice-to-haves

None flagged.

Application prep

Use the role’s language and application details while tailoring your materials.

Platform: workday
Effort: long

Benefits

Benefits detected in the listing.

Dental

Vision

401k

Paid Time Off

Professional Development