X

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. This may include industry internship experience, hobby projects, 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.
  • For Level II, typically three years of engineering-role experience is required; 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.
  • For Level III, typically five years of engineering-role experience is required; 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.
  • For Level IV, typically ten years of engineering-role experience is required; 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.
  • For Level V, typically fifteen years of engineering-role experience is required; 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 support 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 basis, 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 analytical-tool computations for structural, thermal, hydraulic, and other scoping calculations to assess whether components can meet technical requirements.
  • Develop mechanical solutions to refine and deploy concepts, technologies, and designs for 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 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 assessment 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 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.
  • For Level II, support team members with core tasks and responsibilities under guided supervision, and 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.
  • For Level III, execute core tasks and responsibilities with minimal supervision and take ownership, responsibility, and accountability for technical scope involving coordination of multiple individual contributors in a specific area.
  • For Level IV, lead execution of core tasks and responsibilities without close supervision and with some 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 engineering work on time and within budget.
  • For Level V, lead execution of core tasks and responsibilities without close supervision and with extensive independent judgment, mentor junior team members, and stay informed about 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 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 to 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, heating, ventilation and air conditioning, 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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