Create and maintain CAD-generated engineering models of reactor SSCs.
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 work in accordance with X-energy quality procedures for design and configuration management to ensure project quality requirements are met.
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.
Lead the execution of the core tasks and responsibilities listed in the Job Profile Task/Responsibilities section of this document, without close supervision and extensive latitude for independent judgement.
Hardware ownership including manufacturing and testing oversight.
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.
Designing and developing mechanical or fluid systems, assemblies, or components.
Provide independent reviews and acceptance reviews of engineering deliverables and data.
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.
Maintain professional demeanor and behavior at all times in all forms of communication.
Teach and mentor more junior team members.
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.
Write and develop design documentation including design basis documents, technical reports, calculations, and drawings in accordance with applicable procedures.
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.
Stay abreast of industry and academic trends, breakthroughs, and best practices.
Support the assessment of SSCs for manufacturability as well as assembly and integration considerations at the direction of project leads.
Develop Verification and Validation (V&V) plans for analytical tools and support qualification of toolset.
Requirements
ph.d.
master's
asme
nrc
cad
15 years
Familiarization with selection and use of instrumentation for testing and characterizing performance of mechanical systems and components.
Experience with mechanical design of heat exchangers, boilers, or steam generators.
Proficiency with engineering hand calculations is required.
Experience with commercial nuclear power plant operations.
Experience with procurement and manufacturing oversight of pressure vessel or large metallic components.
A master’s degree in engineering or related field (may include a combination of experience obtained through an academic institution, e.g., design projects, research, or design teams, as well as professional experience) may be in lieu of two years of experience.
Previous experience at X-energy exceeding performance standards may be in lieu of years of experience.
Typically, fifteen years of experience in an engineering role required.
Familiarization with metrology techniques for inspection of components, performing fit checks, and troubleshooting mechanical issues.
Experience with NRC regulations and licensing requirements for safety-related systems.
Use of Computer-Aided Design (CAD) and product lifecycle management (PLM) software.
A Ph.D. in engineering or related field (may include a combination of experience obtained through an academic institution, e.g., design projects, research, or design teams, as well as professional experience) may be in lieu of three years of experience.
Professional experience in commercial nuclear power as well as design, qualification, licensing, and construction to ASME Boiler & Pressure Vessel Code (BPVC) Section III and/or Section VIII.
Experience with design of control, gate, globe, ball, or check valves for high-pressure and high-temperature fluid or gas applications.
Experience with design using ASME BPV Code, ASME B31.1 or B31.3, and other industry standards.
Hands-on experience with graphite or other non-metallic components, fabrication or assembly sequencing, and/or tooling development preferred.
Bachelor’s degree in mechanical engineering, or related engineering discipline (e.g., nuclear aerospace, chemical, etc.) from an accredited institution required.
Experience designing and executing vibration, shock, and modal test programs to qualify mechanical components for high-reliability applications.
Experience using hand-tools and handling equipment to assemble mechanical systems or components.
One plus years of demonstrated hands-on experience developing and delivering hardware or manufacturing processes in a production environment is required. May include industry internship experience, hobby, or participation in collegiate engineering projects such as: Formula SAE, Baja SAE, Design Build Fly, Rocket Club, etc.
Experience working in hazardous industrial or manufacturing environments with prior training in areas such as: Pressurized or Stored Energy, High/Low Voltage Safety, Lockout/Tagout, Hoist/Rigging Operations, Machining, Hazard Awareness, etc…
Experience with Mechanical Process Equipment (Piping, Ducting, HVAC, Fire Suppression, Pumps, Pressure Vessels, Piping, Valves, Structural Supports) selection, sizing, and specification development.
Benefits
Information not given or found
Training + Development
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Interview process
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Visa Sponsorship
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Security clearance
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Company
Overview
Founded with the mission to revolutionize the energy sector through advanced nuclear technology.
Developers of the Xe-100, a high-temperature gas-cooled reactor designed for safety and efficiency.
Focus on small modular reactors (SMRs) to provide sustainable energy solutions globally.
Partners with leading utilities and organizations to design scalable, safe, and clean nuclear power plants.
Secured significant investments to expand operations and bring their reactors to market.
Driven by a commitment to meet global energy demands while minimizing environmental impact.
Notable for their innovative reactor designs, which offer unparalleled safety features.
Working to reshape the future of nuclear energy with cutting-edge technology and advanced engineering.
Culture + Values
50% Growth
Global Energy Growth
Global energy demand is expected to rise by 50% over the next 30 years, driven by population growth and economic development.
We’re empowering Solar, wind and hydro are parts of the solution. Nuclear is the only pure base‑load, load‑following, highly scalable, locatable anywhere, stand‑alone or complementary solution. It's an integral piece of the puzzle.
Zero Emissions: We believe in leaving a cleaner planet for our children and grandchildren, while continuing to provide sufficient and affordable power to sustain growing populations around the world.
Clean Water: X‑energy’s core competencies in HTGR design and high‑temperature fuel design/manufacture makes a unique and compelling combination to apply our skills to Nuclear Thermal Propulsion.
Space & Nuclear: The world is facing a pair of challenges … global energy demand is expected to rise by 50 % over the next 30 years. At the same time, we must significantly lower carbon emissions.
Our technology relies on physics, not mechanical systems.
Environment + Sustainability
80 MWe
Power Output
Each Xe-100 reactor unit delivers 80 megawatts of electricity.
$1.1B
Total Funding
Raised from private capital and government grants for reactor and fuel commercialization.
440,000 t CO₂e
Annual Emissions Reduction
Reduction target achieved through partnership with Dow at the Seadrift site.
2030
Decarbonization Timeline
Target year for full emissions replacement at the Seadrift site.
Building Generation IV Xe‑100 small modular reactors to enable carbon‑free baseload and load‑following power.
DOE Advanced Reactor Demonstration Program selected X-energy in 2020 to deliver a four-unit Xe‑100 plant in Washington state.
Working with Ontario Power Generation for industrial decarbonization via Xe‑100 deployment in Canada.
Inclusion & Diversity
Publicly no specific DEI strategic goals, initiatives or metrics are disclosed.
No gender-related statistics or workforce diversity data are available from official sources.