Radiation Shield Design Engineer

Job Responsibilities

• Perform design, analysis, and evaluation in assigned projects using sound engineering principles and adhering to business standards, practices, procedures, and product/program requirements.
• Lead the execution of the core tasks and responsibilities without close supervision and with independent judgment.
• Provide feedback and guidance to junior team members.
• Lead small groups of engineers to solve complex technical problems and deliver high‑quality engineering work products on time and within budget.
• Collaborate in planning, scheduling, and organizing detailed phases of engineering work.
• Collaborate in the technical oversight and direction of internal or external design teams.
• Facilitate and assist in the assessment of customer needs and capture requirements and functions related to nuclear engineering.
• Execute nuclear engineering assignments with clear and specified objectives; utilize conventional specifications and/or Interface Control Documents and plans.
• Recommend system design alterations and enhancements to improve quality of products and/or procedures from an assembly, transportation, construction, commissioning, operations, maintenance, and/or decommissioning perspective.
• Lead reviews and presentations for internal company design reviews and customer design reviews regarding nuclear design.
• Organize engineering efforts in assigned areas between specialty and other engineering groups or disciplines, with the client, suppliers, contractors, or other groups as required.
• Maintain a professional demeanor and behavior at all times, in all forms of communication.
• Perform other duties as assigned by manager.

• Bachelor’s degree in nuclear engineering or related degree from an accredited institution.
• Typically, ten years of experience in an engineering role.
• 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.
• 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.
• Previous experience at X-energy exceeding performance standards may be in lieu of years of experience.
• Possess technical experience and proven expertise in one or more of the following areas:
  Reactor core design and analysis.
  Radiation shielding design and analysis.
  Nuclear fuel analysis and qualification.
  Criticality safety.
  Reactor multiphysics analysis, especially pertaining to transient analysis.
  Nuclear materials and chemistry.
  Nuclear analysis software development, verification and validation.
  Other areas of nuclear engineering or nuclear physics relevant to the design and analysis of small modular reactors, microreactors, and nuclear facilities.

Location:

530 Gaither Road, Rockville, MD

4 days in office, 1 day remote.

10% (as needed for project assignment).

Standard office hours are 8:00am ET to 5:00pm ET, Monday‑Friday.

Full time - Exempt. Salary range for this position is $158,000 – $183,000.

• 401(k) plan with an employer match.
• Medical, dental, and vision insurance.
• Life and disability insurance.
• Paid time off.
• Tuition reimbursement and professional development policy.

X Energy, LLC is 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. Whether a requested accommodation would create an undue hardship will be determined based on the facts of each particular case.

Any applicant or employee who wishes to seek an accommodation under this policy should contact the Human Resources Department via email at