CFD/ Thermal Hydraulics Engineer III
$115k - $140kX Energy
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, . 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 .Job DescriptionThis role is 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.Job Profile Tasks/ResponsibilitiesDevelop 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.Thermal HydraulicsResponsible for providing heat transfer, fluid mechanics, and particulate mechanics analysis to support the design of various X-energy developed reactors and supporting subsystems.Responsible for development, testing and verification of CFD models to support design and analysis which will form part of the reactor licensing basis (steady state and transient conditions, design basis events, anomalies, etc.).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.Job Profile Minimum QualificationsBachelor’s degree in mechanical engineering, or related engineering discipline (e.g., nuclear aerospace, chemical, etc.) from an accredited institution required.Typically, five years of experience in an engineering role required.A master’s degree in engineering or related field (may include a combination of experience obtained through an academic institution, e.g., design projects, research, or design teams, as well as professional experience) may be in lieu of two years of experience.A Ph.D. in engineering or related field (may include a combination of experience obtained through an academic institution, e.g., design projects, research, or design teams, as well as professional experience) may be in lieu of three years of experience.Proficiency with engineering hand calculations is required.Experience and/or knowledge in a minimum of one of the following areas:E.g. UG/NX, SolidWorks, Pro-Engineer, Teamcenter, Windchill, or similar.Use of Computational Fluid Dynamics (CFD) analysis codes (e.g., STAR-CCM+, Fluent, or similar).Location: 530 Gaither Road, Rockville MDWork Site Expectations: 4-5 days in officeTravel Expectations: up to 10% as neededHours: Standard office schedule are 8:00am-5:00pm ET, Mon-Fri CompensationAs 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:$115,000- $140,000Position Job ClassificationFull time - ExemptBenefitsX 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 SpanishSummaryLocation: Rockville, MDType: Full time
- ...maintenance, and subcontract oversight. Experience specific to Thermal-Hydraulic Simulation is required.Job Profile Tasks/... ...planning, scheduling, and organization of detailed phases of engineering work.Collaborate in the technical oversight and direction of...SuggestedFull timeFor contractorsFor subcontractorWork at office
- Design Engineer — Passive Thermal Systems – 12+ months Mid-Level | Aerospace & Defense *This job is fully remote from anywhere in the United States* Duration of this position is expected to be at least 12 months. Must be a Green Card holder or US Citizen. At...SuggestedRemote work
- Rockville, MarylandEngineering - Water/Wastewater Engineering /Full time /HybridA. Morton Thomas and Associates, Inc. (AMT) is hiring a Civil Engineer - Water/Wastewater Engineering to collaborate in the planning, design, and implementation of infrastructure solutions for...SuggestedPermanent employmentFull timeTemporary workCasual workVisa sponsorship
- ...Genex Systems seeks a talented Hydraulic Research Engineer to support the Federal Highway Administration (FHWA) contract at the Turner-Fairbank Highway... ..., and flow field measurement using PIV, ADV, and UDV. CFD simulations and CAD model designs may be included to complement...SuggestedFull timeContract work
$134.26k
...world. Job Description CDM Smith is a multi-discipline engineering and architectural firm. Our firm is responsible for large-scale... ...plant design, transit facilities, and industrial facilities. As a Hydraulic Structures Engineer at CDM Smith, you will have the...SuggestedContract workFor contractorsWork experience placementH1bRemote work$135.32k - $225.98k
...biggest challenges in an ever-evolving world. With over 100 years of innovation in sustainable infrastructure and our expertise in engineering, procurement, consulting and construction, together we are building a world of difference. Company : Black & Veatch Corporation...Full timePart timeWork experience placementLocal areaRemote workRelocationVisa sponsorshipFlexible hours$137.92k - $230.33k
...innovation in sustainable infrastructure and our expertise in engineering, procurement, consulting and construction, together we are building... ...:Risa-3DStaad ProGT StrudlANSYSCode Experience:ASME Section III, Section XIAISC, 15th EditionACI 318, 349Minimum QualificationsRequires...Full timePart timeWork experience placementWork at officeLocal areaRelocationVisa sponsorshipFlexible hours- ...Acoustics Engineer Company Overview: KMS Solutions, LLC is a technical management / solutions company that specializes in engineering, analysis, and cyber security. Founded in 2005, KMS is a certified small business with nearly two decades of experience supporting...Full timeContract workTemporary workWork at officeLocal areaRemote workFlexible hours
- ...only in your community, but around the world. In the role of Water Resources Engineer, we'll count on you to: Provide project engineering and task management, conduct difficult to complex hydraulic and hydrologic modeling; conduct stormwater collection systems modeling...Local area
- ...projects are pioneering solutions addressing important issues such as food scarcity and global health.Job DescriptionThe Mechanical Engineer focuses on the design and engineering of HVAC and mechanical utilities for buildings. The individual possesses demonstrated...For subcontractor
- ...Overview Project Engineering Manager - Water/Wastewater. About the job Project Engineering Manager - Water/Wastewater The Opportunity Lead and coordinate multidisciplinary engineering teams on high-profile municipal projects. Supervise, mentor, and support the professional...Flexible hours
- ...Overview KCI’s Sparks Water/Wastewater practice is seeking a Project Engineer with a focus on facility projects including pumping stations and treatment plants. Key Responsibilities Work with the Project Manager for successful project execution. Design water and wastewater...Contract workWork experience placementWork at officeLocal area
- ...demand. We invite you to bring your bold ideas and big dreams and become part of a global team of over 50,000 planners, designers, engineers, scientists, digital innovators, program and construction managers and other professionals delivering projects that create a...Work at officeLocal areaWorldwideRelocationFlexible hours
- ...DHA is seeking a Water/Wastewater Project Engineer to work on Potomac Interceptor projects. Responsibilities for this position include assisting project managers on large diameter sewer rehabilitation projects. Responsibilities for this position include assisting project...Full timeWork experience placementWork at officeLocal areaRemote work3 days per week
$135k - $170k
...directs you in a manner otherwise, please contact us at .Job DescriptionJob Profile SummaryTo lead and implement comprehensive systems engineering efforts across the full lifecycle, applying systems thinking to analyze, design and integrate complement interdependent...Full timeWork at officeRemote work$137.84k - $229.73k
...DescriptionThis position is responsible for supporting the acquisition, integration, qualification, and development of a state-of-the art engineering analysis software toolkit that enables the design and licensing of the next generation of nuclear power reactors. This includes...Full timeFor contractorsWork at office$116.6k - $177.8k
...for clinical consumables. This position will work with a team of engineers and scientists to design and evaluate novel and high throughput... ...film and metal foil processing techniques:Bonding (thermal, ultrasonic, laser, adhesive, solvent) Forming (stamping, thermal...Full timeTemporary workWork at officeFlexible hours$140k - $165k
...represent X-energy directs you in a manner otherwise, please contact us at .Job DescriptionThis role is responsible for performing engineering tasks associated with selecting, qualifying, and conducting lifetime assessment analyses for materials in a nuclear reactor or...Full timeWork at office- This position is for a site/civil engineer who is interested in both land development and dry utility design work.Responsibilities include:Directing work to Designers and Engineers in the preparation of civil engineering plans and construction documentsDesign of storm...
$130.05k - $216.75k
...as analysis and design of systems, structures, and components (SSCs). This role will collaborate with a multi-disciplined team of engineers, suppliers, construction contractors and other project stakeholders, and support key objectives in deploying the Xe-100 plant that...Full timeFor contractorsWork at officeLocal areaRemote work- ...Overview KCI’s Sparks Water/Wastewater practice is seeking a Project Engineer with a focus on facility projects including pumping stations and treatment plants. Key Responsibilities Work with the Project Manager for successful project execution. Design water and wastewater...Contract workWork experience placementWork at officeLocal area
$151.66k
...Dates: Open 07/29/2026 to 08/12/2026Schedule: Full-timeWork type: PermanentRelocation: TruePosition ID: DEST-13004588-26-TBDocument ID: 878379800Grade: SN 00Job category: Nuclear Engineering (0840)Hiring path: public, fed-competitive, fed-excepted, vet, special-authorities- Rockville, MarylandEngineering - Transportation Engineering /Full time /HybridA. Morton Thomas and Associates, Inc., (AMT) is an employee-owned ENR 500 A/E firm providing services in the disciplines of civil engineering, construction management and inspection, traffic and...Full timeWork at officeRemote workRelocationFlexible hours2 days per week
$150k - $180k
...Systems Group (IWSG) delivers expertise across program and project management, acquisition and contracting, systems and digital engineering, software development, test and evaluation, sustainment and life‑cycle management, cybersecurity, international/Foreign Military...Work at officeFlexible hours$137.84k - $229.73k
...Description This position is responsible for supporting the acquisition, integration, qualification, and development of a state-of-the art engineering analysis software toolkit that enables the design and licensing of the next generation of nuclear power reactors. This includes...Full timeFor contractorsWork at officeMonday to Friday$269k - $328.9k
...biologics, cell therapy, ADCs and small molecules. Position SummaryWe are looking for an experienced Executive Director of Process Engineering to lead our cell therapy process engineering team. The Executive Director will oversee the design, scale-up, and optimization of...Full timeWork at office3 days per week$20 - $25 per hour
.... Qualifications • Pursuing an Associate's or Bachelor's degree in Construction Management, Mechanical, Civil or Electrical Engineering or related degree • Must be legally authorized to work without requiring sponsorship for employment to begin or continue employment...Full timeContract workTemporary workFor subcontractorSummer workInternshipSummer internshipWork at officeRelocationWeekend work$137.92k - $230.33k
...biggest challenges in an ever-evolving world. With over 100 years of innovation in sustainable infrastructure and our expertise in engineering, procurement, consulting and construction, together we are building a world of difference. Company : Black & Veatch Corporation...Full timePart timeWork experience placementWork at officeLocal areaRelocationVisa sponsorshipFlexible hours- DescriptionGraphics Processing Unit (GPU) Engineer - TS/SCI Xcelerate Solutions is looking for a highly skilled Graphics Processing Unit... ...appropriate computing environment (CE) certification). An IAT Level III certification would also be acceptable (CASP+, CCNP Security,...
$105.4k - $207.8k
Position Summary Senior QA Engineer -AI & EngineeringJoin our AI & Engineering team in transforming technology platforms, driving... ...capabilities to accelerate innovation.Work You'll DoAs an SDET III, you will bring considerable technical expertise to deliver effective...Local areaVisa sponsorshipFlexible hours
Do you want to receive more vacancies?
Subscribe and receive similar vacancies to CFD/ Thermal Hydraulics Engineer III. Be the first to apply!


