Engineer V, Mechanical

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 Senior Mechanical Engineer responsible for the 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.
• The role may include specialization in one or more of the following areas:
  • Structural Design
    • Perform and assist structural analysis for systems, structures, and components of X-energy developed reactors, including pressure vessels and piping, reactor internals, nuclear fuel, and high temperature materials such as graphite.
    • Use engineering tools, including finite element analysis (FEA) simulation software, hand calculations, and engineering judgment, to assess stress, deformation, degradation behavior, and lifetime mechanical performance of these nuclear reactor components.
  • Thermal Hydraulics
    • Responsible 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.).
  • Thermosystems
    • 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 sizing and analysis of components including heat exchangers, pumps, circulators, and turbomachinery.
    • Support the development of reactor and plant control philosophy and implement in plant models, simulations, and digital twins.
  • Mechanical Design
    • Develop innovative mechanical solutions to refine and deploy concepts, technologies, and designs associated with X-energy developed reactors, including pressure vessels and piping, reactor internals, nuclear fuel, and high temperature materials such as graphite.
    • Integrate design activities across engineering team members, partners, and suppliers and perform supporting scoping and sizing calculations to downselect design features to meet design requirements using guidance from consensus codes and standards.
    • Create and maintain CAD-generated engineering models of reactor SSCs.
• 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 ba