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X-energy

Develops SMR reactors and TRISO fuel

Mechanical Design Engineer

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 an industry internship, hobby, or collegiate engineering project 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, and a Ph.D. may substitute for three years. Academic design projects, research, or design teams may count toward the degree-based substitution.
  • 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, and a Ph.D. may substitute for three years. Academic design projects, research, or design teams may count toward the degree-based substitution.
  • 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, and a Ph.D. may substitute for three years. Academic design projects, research, or design teams may count toward the degree-based substitution.
  • 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, and a Ph.D. may substitute for three years. Academic design projects, research, or design teams may count toward the degree-based substitution. Previous X-energy experience exceeding performance standards may substitute for years of experience.

Responsibilities

  • Develop mechanical and physical concepts and support the development of 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 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 scoping and sizing calculations to select design features that meet requirements using consensus codes and standards.
  • Create and maintain computer-aided-design engineering models of reactor structures, systems, and components.
  • Support assessment of structures, systems, and components for manufacturability, assembly, and integration considerations under the direction of project leads.
  • Write and develop 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 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 with 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 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 in solving complex technical problems and delivering high-quality work on time and within budget.
  • At Level V, lead core tasks and responsibilities without close supervision and with extensive latitude for independent judgment, mentor junior team members, and stay current with industry and academic trends, breakthroughs, and best practices.

Desired Qualifications

  • Experience with commercial nuclear power plant operations is preferred.
  • Professional experience in commercial nuclear power, including design, qualification, licensing, and construction to ASME Boiler and Pressure Vessel Code (BPVC) Section III and/or Section VIII, is preferred.
  • Experience with Nuclear Regulatory Commission regulations and licensing requirements for safety-related systems is preferred.
  • Experience designing with the ASME Boiler and Pressure Vessel Code, ASME B31.1 or B31.3, and other industry standards is preferred.
  • Experience selecting, sizing, and developing specifications for mechanical process equipment, including piping, ducting, HVAC, fire suppression, pumps, pressure vessels, valves, and structural supports, is preferred.
  • Hands-on experience with graphite or other non-metallic components, fabrication or assembly sequencing, and/or tooling development is preferred.
  • Experience with procurement and manufacturing oversight of pressure vessels or large metallic components is 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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