Engineer I, Mechanical

xenergy; Rockville (MD); On-site; USD 65,000 - 90,000; Full time

Job summary

X-energy LLC is hiring a Junior Mechanical Engineer to design and develop mechanical systems, structures, and components for nuclear products or facilities. You will conceptualize, analyze, and document SSCs to meet technical specifications, and support prototyping, testing, and commissioning.

Strong focus on structural design, CFD/FEA, and thermofluid analyses. You will collaborate with stakeholders, conduct calculations, and generate design documentation while ensuring adherence to codes and

Qualifications

• Experience with mechanical design and analysis for SSCs is helpful.
• Familiarity with structural analysis methods and design basis documentation.

Responsibilities

• Develop mechanical concepts and design SSCs for nuclear products or facilities.
• Perform calculations (structural, thermal, hydraulic) to verify requirements.
• Create and maintain CAD models and deliver design documentation.
• Support prototyping, testing, and commissioning as needed.
• Assist with development of verification and validation plans.

Skills

CAD software

FEA analysis

CFD modeling

Thermal hydraulics

Structural design

Tools

FEA software

CAD software

CFD tools

Job description

Job Description

X-energy LLC is hiring a Junior Mechanical Engineer. This 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/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 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.
• Assist and support team members with the execution of the core tasks and responsibilities listed in the Job Profile Task/Responsibilities section of this document, under guided supervision.