X

X-energy

Develops SMR reactors and TRISO fuel

Mechanical Engineer - Graphite

Design EngineeringConfirmed live in the last 24 hours
Full-timeGaithersburg, MD, USA

About the Job

Requirements

  • A bachelor's degree in mechanical engineering or a related engineering discipline, such as nuclear, aerospace, or chemical engineering, from an accredited institution is required.
  • Proficiency with engineering hand calculations is required.
  • Experience designing and developing mechanical or fluid systems, assemblies, or components is required.
  • At least one year of hands-on experience developing and delivering hardware or manufacturing processes in a production environment is required; qualifying experience may include industry internships, hobbies, or collegiate engineering projects such as Formula SAE, Baja SAE, Design Build Fly, or Rocket Club.
  • Hardware ownership, including manufacturing and testing oversight, is required.
  • Experience using computer-aided design (CAD) and product lifecycle management (PLM) software, such as UG/NX, SolidWorks, Pro/Engineer, Teamcenter, Windchill, or similar, is required.
  • Level II typically requires three years of engineering-role experience. A master's degree in engineering or a related field may substitute for two years of experience, and a Ph.D. in engineering or a related field may substitute for three years.
  • Level III typically requires five years of engineering-role experience. A master's degree in engineering or a related field may substitute for two years of experience, and a Ph.D. in engineering or a related field may substitute for three years.
  • Level IV typically requires ten years of engineering-role experience. A master's degree in engineering or a related field may substitute for two years of experience, and a Ph.D. in engineering or a related field may substitute for three years.
  • Level V typically requires fifteen years of engineering-role experience. A master's degree in engineering or a related field may substitute for two years of experience, and a Ph.D. in engineering or a related field may substitute for three years. Previous experience at X-energy exceeding performance standards may also substitute for years of experience.

Responsibilities

  • Develop mechanical and physical concepts and design and support processes to create or identify structures, systems, and components for nuclear products or facilities, with a focus on nuclear safety.
  • Identify, collect, and document applicable requirements, interfaces, design bases, and criteria by coordinating with key stakeholders and systems engineers; support identification of applicable industry codes and standards under the direction of project leads and systems engineers.
  • Plan and perform analyses to assess structures, systems, and components and ensure they can perform their intended functions and meet technical specifications and design requirements.
  • Perform hand calculations and use analytical tools for structural, thermal, hydraulic, and other scoping calculations as required under the direction of project leads and systems engineers.
  • Develop mechanical solutions to refine and deploy concepts, technologies, and designs for X-energy 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; perform supporting scoping and sizing calculations to select design features that meet requirements using guidance from consensus codes and standards.
  • Create and maintain computer-aided-design engineering models of reactor structures, systems, and components.
  • Support assessments of structures, systems, and components for manufacturability, assembly, and integration considerations under 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 plans for analytical tools and support qualification of the toolset.
  • Perform work in accordance with X-energy quality procedures for design and configuration management to meet project quality requirements.
  • Provide independent reviews and acceptance reviews of engineering deliverables and data.
  • Perform other duties as assigned by the manager.
  • At Level II, support team members in executing core tasks and responsibilities under guided supervision.
  • At Level II, coordinate with engineering team members, partners, and suppliers to facilitate convergence of efforts, design closure, design assurance, and delivery of high-quality engineering work products.
  • At Level III, execute core tasks and responsibilities with minimal supervision and own technical scope involving coordination of multiple individual contributors in a specific area.
  • At Level IV, lead execution of core tasks and responsibilities without close supervision and with some latitude for independent judgment; provide feedback and guidance to junior team members; and lead small groups of engineers to solve complex technical problems and deliver high-quality engineering work products on time and within budget.
  • At Level V, lead execution of core tasks and responsibilities without close supervision and with extensive latitude for independent judgment; teach and mentor junior team members; and stay abreast of industry and academic trends, breakthroughs, and best practices.

Desired Qualifications

  • Experience in graphite design, modeling, or analysis is preferred.
  • Professional experience in commercial nuclear power and experience with design, qualification, licensing, and construction to ASME Boiler & Pressure Vessel Code (BPVC) Section III, Division V are preferred.

About the Company

X-energy

Develops SMR reactors and TRISO fuel

X-energy designs and develops Generation IV high-temperature gas-cooled pebble-bed reactors and the TRISO-X fuel for small modular reactors (SMRs). Its modular reactor units use TRISO fuel to operate at high temperatures, producing heat that powers electricity generation or process heat through conventional power cycles, with safety features built into the fuel and design. The company differentiates itself by combining a fully modular Gen IV gas-coooled platform with proprietary TRISO-X fuel and a clear path toward commercialization backed by substantial financing. Its goal is to deliver cleaner, safer nuclear energy at commercial scale by completing design, obtaining regulatory clearance, and deploying its SMR technology and fuel.

Company size
1,001-5,000
Company stage
IPO
Headquarters
Rockville, MD
Founded
2009

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