X-energy LLC

Dec 16, 2025
Full time
$146,000 - $184,690 yearly
X-energy LLC Rockville, MD, USA
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 This position provides management support and technical leadership to the group performing a subdiscipline of mechanical engineering across all projects and programs. This includes directing the work of individual contributors on the team, at the discretion of projects which they are supporting, providing organizational support for the project team, and assisting with the design, analysis and drafting of systems, structures, and components for various advanced reactor plants. Job Profile Tasks/Responsibilities...
Dec 16, 2025
Full time
$97,875 - $163,125 yearly
X-energy LLC Rockville, MD, USA
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 Our Structural Analysis Engineer 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....
Dec 08, 2025
Full time
X-energy LLC Rockville, MD, USA
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 This position is responsible for managing the group of engineers responsible for performing a subdiscipline of mechanical engineering across all projects and programs. This includes directing the work of individual contributors on the team, at the discretion of projects which they are supporting, providing organizational support for the project team, and assisting with the design, analysis and drafting of systems, structures, and components for various advanced reactor plants. Job Profile Tasks/Responsibilities...
Dec 06, 2025
Full time
X-energy LLC Rockville, MD, USA
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 growing our Structural Analysis team. We are looking for experienced 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...
Dec 04, 2025
Full time
X-energy LLC Rockville, MD, USA
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 This role is responsible for supporting the Software Services team that performs software development and qualification of design and safety analysis codes and the Risk Informed Safety Analysis team that performs the nuclear safety analysis. The software is used to support X-energy technology (e.g., Xe-100) licensing and design, including system thermo-hydraulic analysis, component thermo-hydraulic analysis, fission product release and transport analysis, neutronics analysis, structural analysis and probabilistic risk...
Nov 01, 2025
Full time
$115,830 - $160,875 yearly
X-energy LLC Oak Ridge, TN, USA
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 This role provides design engineering support to the TRISO-X fuel production facility, from research and development to system design, installation, testing, and maintenance. The role contributes to the design, assembly, testing, and maintenance of mechanical and process equipment, furthering the design and licensing of the TRISO-X Facility. Job Profile Tasks/Responsibilities: Create designs for various process support systems (chemical, piping, HVAC, ventilation, structural, electro-mechanical, automation and...
Oct 22, 2025
Full time
$146,000 - $184,690 yearly
X-energy LLC Rockville, MD, USA
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 has an exciting opportunity for a Lead Engineer with strong structural analysis experience. This position provides management support and technical leadership to the group performing a subdiscipline of mechanical engineering across all projects and programs. This includes directing the work of individual contributors on the team, at the discretion of projects which they are supporting, providing organizational support for the project team, and assisting with the design, analysis and drafting of systems,...
Oct 12, 2025
Full time
X-energy LLC Rockville, MD, USA
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 professionals to join our Engineering Team in the role of Engineer III or IV, Electrical. This role is responsible for supporting design implementation of electric auxiliaries, interconnection, services, and/or specialties. This role supports engagement with the project team and/or other subject matter experts to understand operability needs, interfaces, and requirements. The role also performs direct design and/or review activities as needed for drawings, specifications, calculations, reports, test...
Oct 08, 2025
Full time
X-energy LLC Rockville, MD, USA
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 a Structural Analysis Engineer 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...
Aug 25, 2025
Full time
$152,000 - $228,000 yearly
X-energy LLC Rockville, MD, USA
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, LLC is seeking an accomplished Principal Engineer/Mechanical Engineering Manager (Heat Exchanger Design) to lead our advanced Mechanical Design team in the development of Steam Generators and Heat Exchangers for advanced nuclear reactor applications. This leadership position drives the strategic direction and technical excellence of mechanical design operations for the Steam Generator of the Xe-100 Small Modular Reactor (SMR), with particular emphasis on mission-critical reactor systems. The successful candidate...