Select components based on applicable requirements, interfaces, design bases and criteria by coordinating with key stakeholders/systems engineers and support identification of applicable industry codes and standards.
Review engineering documentation for technical correctness and compliance with X-energy processes and procedures and participate in design reviews for valves within your expertise and competence.
Oversee and/or provide technical expertise to review procured items and associated documentation for acceptance and verify compliance of procured services and material with contract specifications.
Supervise performance of computations utilizing hand calculations and analytical tools for structural, thermal, hydraulic, and other scoping calculations as required to ensure valves can meet all technical requirements in a manner that is compliant with applicable codes and standards.
Author and maintain X-energy design standards and guides related to design, specification, and selection of valves.
Provide independent reviews and acceptance reviews of engineering deliverables and data.
Actively support the safety culture and ensure integration of quality into all Engineering processes utilized in the performance of this role by complying with the relevant requirements of the Quality Assurance Program.
Maintain professional demeanor and behavior at all times in all forms of communication.
Oversee documentation of applicable requirements, interfaces, design basis and criteria by coordinating with key stakeholders/systems engineers and identify applicable and appropriate industry codes and standards.
Compose and develop design documentation including, but not limited to, design basis documents, technical reports, calculations, design descriptions and drawings in accordance with applicable procedures.
Develop and manage implementation of engineering changes in accordance with approved procedures.
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 judgment. Develop and manage implementation of engineering changes in accordance with approved procedures. Teach and mentor more junior team members. Stay abreast of industry and academic trends, breakthroughs, and best practices. In collaboration with engineering leadership, set technical direction at the enterprise level through developing and owning technology or discipline specific roadmaps, best practices, and/or design criteria.
As needed, direct planning of analyses required to assess all aspects of the valves to ensure they can perform their intended functions and meet all technical specifications and requirements in a manner that is compliant with applicable codes and standards.
Develop the technical content for and support the procurement of material, equipment, and services.
Provide assistance and guidance in designing and developing mechanical systems and components within your expertise.
Identify, document, report and manage risks related to engineering and design scope associated with this role to ensure they are visible and mitigated accordingly.
Requirements
control valves
materials metallurgy
industry codes
phd
15+ years
fluid dynamics
Valve types and applications: Comprehensive understanding of different valve types (gate, globe, check, ball, butterfly, diaphragm, etc.) and their appropriate applications in various process conditions.
Control valve engineering: Expert knowledge of control valve sizing, selection criteria, trim design, actuator selection, positioners, and failure modes. This role also includes advising and mentoring other engineers on the sizing, design, and selection of control valves.
Materials and metallurgy: Knowledge of valve body, trim, and seat materials including their compatibility with process fluids, temperature limits, and corrosion resistance.
Special application valves: Familiarity with safety relief valves, pressure reducing valves, backflow preventers, and other specialized valves. This role also includes advising and mentoring other engineers on the sizing, design, and selection of special application valves.
Industry codes and standards: Mastery of relevant standards including ASME, API, MSS, AWWA, and nuclear-specific requirements like ASME Section III.
Valve testing and qualification: Knowledge of valve testing procedures, acceptance criteria, and qualification for safety-critical applications.
Fugitive emissions and sealing technology: Expertise in packing designs, emissions standards (e.g., ISO 15848), and compliance requirements.
Previous experience at X-energy exceeding performance standards may be in lieu of years of experience.
Experience with design and operation of mechanical systems including, but not limited to, steam, feedwater, condensate, HVAC, fire protection, drainage, compressed air, services, water-based systems, or nuclear systems.
Systems or Design Engineering experience in successful mechanical system development projects.
Severe service applications: Specialized experience with valves for high-pressure/temperature, high-velocity flow, cavitation, flashing, erosive/corrosive media, and other challenging conditions. This role also includes advising and mentoring other engineers on the sizing, design, and selection of severe service valves.
Experience with authoring and/or maintaining company design standards and guides related to design, specification, and selection of valves is desirable.
Experience with mechanical process equipment design, procurement, installation, and/or operation is required. For this role that experience must include specifying and selecting general service, control, severe service, and special application valves based on system needs while considering all potential impacts of that selection throughout the life of the component, its associated, system, and interfacing plant systems. This role also involves providing expert advice and recommendation to other engineering staff for general selection of valve types based on suitability to system design and service.
Knowledge of Systems Engineering processes, as well as relevant aspects of nuclear power plant licensing, regulatory, quality, and safety requirements.
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.
Bachelor's degree in mechanical engineering or related engineering discipline from an ABET accredited university required.
Work effectively and efficiently with multidisciplinary engineering teams.
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.
Fluid dynamics: Strong understanding of fluid behavior through valves including pressure drops, flow characteristics, noise prediction, and cavitation/flashing analysis.
Knowledge of best practices for system requirements management and verification.
Have a thorough understanding of the letter and intent of industry codes and standards.
Vendor management: Experience evaluating supplier proposals and reviewing vendor documentation for compliance with equipment specifications, design codes and standards, contract requirements, maintenance provisions, operation, testing, and general industry best practices.
Demonstrate project management skills to effectively organize and lead external engineering partners.
The skills required for this role are typically demonstrated by 15 plus years of relevant experience.
Valve actuation and control: Understanding of manual, pneumatic, hydraulic, and electric actuation systems, control circuits, and instrumentation interfaces.
Benefits
Information not given or found
Training + Development
Information not given or found
Interview process
submit application via x-energy career website.
interview(s) to discuss qualifications and responsibilities before any offer.
no offers are made without completing the interview process.
Visa Sponsorship
Information not given or found
Security clearance
Information not given or found
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.