Engineer II-IV, Reactor Physics

X-Energy, LLC; Rockville (MD); On-site; USD 108,000 - 185,000; Full time

Benefits offered by this job

401K plan with employer match

Medical/Dental/Vision Insurance

Paid Time Off

Tuition Reimbursement/Professional Dev

Job summary

X Energy, LLC in Gaithersburg, MD is seeking an experienced nuclear engineer to design, analyze, and validate reactor-related systems. You will collaborate with internal teams and external partners to ensure design closure and high-quality outputs across the project lifecycle.

The role emphasizes safety, code compliance, and effective communication within a multi-disciplinary team. Ideal candidates will have a strong background in reactor core design, shielding, fuel analysis, and criticality

Qualifications

• Bachelor’s degree in nuclear engineering or related field.
• Typically, three years of experience in an engineering role for a level II.
• Typically, five years of experience in an engineering role for a level III.
• Typically, ten years of experience in an engineering role for a level IV.
• Master’s or Ph.D. may substitute years of experience.
• Experience in reactor core design, shielding, fuel analysis or criticality safety.

Responsibilities

• Perform design, analysis, and evaluation in assigned projects using engineering principles.
• Support team members with guided execution of core tasks and responsibilities.
• Coordinate with engineering teams, partners, and suppliers to deliver quality work.
• Plan, schedule, and organize detailed phases of engineering work.
• Lead reviews for internal and customer design reviews related to nuclear design.
• Organize efforts among groups to ensure design closure and quality.

Skills

Nuclear engineering

Reactor core design

Radiation shielding

Nuclear fuel analysis

Criticality safety

Multiphysics analysis

Nuclear software development

Nuclear physics

Education

Bachelor’s degree in nuclear engineering or related field

Master’s degree may substitute two years of experience

Ph.D. may substitute three years of experience

Tools

MCNP

SCALE

OpenMC

Job description

Job Description

This role is responsible for performing engineering tasks associated with designing, developing, and conducting analyses of a nuclear reactor or nuclear facility.

Job Profile Tasks/Responsibilities

• Perform design, analysis, and evaluation in assigned projects using sound engineering principles and adhering to business standards, practices, procedures, and product / program requirements.
• Support team members with the execution of the core tasks and responsibilities listed in the Job Profile Task/Responsibilities section of this document, under guided supervision.
• Coordinate with engineering team members, partners, and suppliers to facilitate the convergence of efforts, allow design closure, provide design assurance, and deliver high quality engineering work products.
• 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.

Job Profile Minimum Qualifications

• Bachelor’s degree in nuclear engineering or related degree from an accredited institution.
• Typically, three years of experience in an engineering role for a level II.
• Typically, five years of experience in an engineering role for a level III.
• Typically, ten years of experience in an engineering role for a level IV.
• 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 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.

Preferred Qualifications

• Experience with reactor physics codes (ex. MCNP, SCALE, OpenMC).
• Understanding of deterministic methods.

Location

Location: 9801 Washingtonian Blvd, Gaithersburg, MD

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: Level II: $107,625 - $122,063; Level III: $125,000 - $150,000; Level IV: $155,000 - $185,000

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/Professional Development policy that supports the continuing education of our employees.

Equality Statements

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.

E-Verify Information

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 X-energy is delivering the next generation of carbon-free energy by reinventing nuclear power. 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. That is why we have reinvented nuclear power, with a unique combination of proven technologies and new innovations, to meet our current and future needs. Watch our Anthem here

Additional Equal Opportunity Statement

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. Equal Employment Opportunity Posters X-energy does not discriminate in employment against qualified individuals on the basis of a disability, and understands its obligation to make reasonable accommodation for individuals with physical or mental impairments that qualify as a disability under the ADA and ADAAA, unless the accommodation would impose an undue hardship on the company. It is an applicant’s or employee’s responsibility to participate in this interactive process by seeking an accommodation, assisting X-energy in reviewing accommodation alternatives and providing medical certification of the need for an accommodation. Any applicant or employee who wishes to seek an accommodation under this policy should contact the Human Resources Department via email at [e-mail]. Whether a requested accommodation would create an undue hardship will be determined based on the facts of each particular case.