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Salary
≈ $162k – $305k per year (Estimated)
Location
In office (Rockville)
Seniority
Architect · 5+ years exp
Employment
Full-Time

Confirmed on the employer's own hiring board on Sep 28, 2026. First seen by Alion on Sep 10, 2026.

Overview
Company
Impact
Profile match
X-energy is an advanced nuclear reactor and fuel company headquartered in Rockville, Maryland, developing the Xe-100 high-temperature gas-cooled small modular reactor and the TRISO-X fuel that powers it. Founded in 2009, it has further offices and sites in Frederick, Maryland and Oak Ridge, Tennessee, where its fuel fabrication facility is being built, and works with utility and industrial partners on first deployments of its reactors in the United States. It recruits mechanical, electrical, fuel and thermal hydraulics engineers, project controls and supply chain specialists, procurement and purchasing staff, construction field engineers and corporate functions such as HR and recruiting.

X-energy LLC conducts a thorough recruiting process and will never issue offers without interview to discuss qualifications and responsibilities. All applications will be submitted via our company career page, www.x-energy.com/careers/. We will never ask you to provide payment information as part of the recruiting process. If anyone claiming to represent X-energy directs you in a manner otherwise, please contact us at www.x-energy.com/contact-us.

Job Description

This position is responsible for overseeing project engineering activities across all nuclear development projects from inception through deployment. The position directs engineering project integration activities which support the success of new nuclear plant projects. This role combines strategic planning with operational oversight to ensure technical excellence, regulatory compliance, and alignment with business objectives.

Job Profile Tasks/Responsibilities:

  • Lead engineering strategy development and oversight for project engineering activities across all nuclear technology development projects.
  • Establish and implement engineering standards, processes, and quality procedures to support design and development activities.
  • Develop technology roadmaps and maturation plans to support deployment of nuclear technologies from inception through operation.
  • Direct and manage engineering teams.
  • Coordinate engineering resources, processes, tools, and training across nuclear product development efforts.
  • Interface with project execution teams to ensure technical alignment with business objectives.
  • Support budget and resource allocation planning and periodic status updates.
  • Support implementation of engineering tools and digital technologies to enhance operational efficiency.
  • Represent the company at industry panels, technical forums, and government engagements.
  • Collaborate with Business Development and Government Affairs to support engagement with government and industry stakeholders.
  • Provide engineering oversight for the development and deployment of advanced nuclear technologies.
  • Set overarching Key Performance Indicators (KPIs) for direct reports and their teams, maintaining and reporting on key engineering metrics.
  • Perform engineering design reviews and propose solutions to complex technical problems.
  • Lead technical risk assessments and mitigation strategies for nuclear projects.
  • Ensure compliance with nuclear quality assurance requirements and regulatory standards.
  • Ensure engineering teams maintain appropriate velocity, removing obstacles and maintaining high-quality outputs.
  • Mentor early career engineers and develop engineering staff to build high-performing teams.
  • Maintain professional demeanor and behavior at all times in all forms of communication.
  • Perform other duties as necessary.

Job Profile Minimum Qualifications:

  • A B.S. degree in Engineering or related technical field is required.
  • Typically, fifteen years of experience in nuclear engineering or related industry experience.
  • Typically, five years in engineering leadership roles with demonstrated success delivering complex technical projects.
  • Typically, five plus years in an engineering project management role is required.
  • Experience in developing and maintaining engineering standards and quality processes.
  • Strong understanding of nuclear regulatory requirements and licensing processes.

Location: 9801 Washingtonian Boulevard, Gaithersburg, Maryland

Work Site Expectations: 4 days in office

Travel Expectations: Up to 10%

Hours: Standard office hours are 8:00am - 5:00pm ET, Monday - Friday

Compensation

As required by Maryland and other applicable state law, X Energy, LLC (X-energy) lists the expected compensation range for a publicly advertised job opportunity based upon the job requirements (e.g. education/training, experience, skill sets, etc.). Individual candidates who meet the job requirements for the posted position will be offered a salary within this range based on their respective levels of education/training, experience, and other qualifications unique to them. Salary ranges may vary based on the specific office location and region referenced in the posting to take into consideration differences in cost of living and may not be reflective of all regions. Please note that compensation ranges listed for US job postings reflect base salary only and do not include benefits or other incentives.

Offers within the posted salary range are commensurate with the individual’s qualifications for the position, along with a view on internal equity, market data, and room for growth. The salary range for this position is:

$213,7500-$242,500

Position Job Classification

Full time - Exempt

Benefits

X Energy, LLC offers a robust benefits package that includes a 401K plan with an employer match, Medical/Dental /Vision Insurance, Life and Disability Insurance, Paid Time Off, and a Tuition Reimbursement/ProfessionalDevelopment policy that supports the continuing education of our employees.

An Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, or protected veteran status and will not be discriminated against on the basis of disability.

X Energy, LLC participates in E-Verify. Please visit the links below for more information about E-Verify and the protection of your Right to Work.

Right To Work Link: If you have the right to work, don't let anyone take it away (e-verify.gov)

E-Verify Participation Link: E-Verify Participation Poster English and Spanish

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