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Added 32 mins ago
Nurse (VA Liaison for Healthcare)
Veterans Affairs, Veterans Health Administration
Fort Drum, NY
…health care facility. The VA Liaison is accountable for clinical program effectiveness and modification of service patterns. Responsibilities There is a nationally recognized initiative to…
Added 32 mins ago
Registered Nurse - Supervisory Assistant Nurse Manager
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Quality Control Manager, Steel Bridge Fab (Relocation to Columbia, MO)
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Considering a relocation? We're seeking an experienced Quality Control Manager to direct QC for a structural steel bridge fabrication operation in Columbia, Missouri, with relocation…
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Nurse Case Manager II / DeSoto County
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Cultural Resources Discipline Lead
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Develop professional Paleontological Resources Impact Mitigation Program (PRIMP) for complex projects.
Added 3 hours ago
Cultural Resources Discipline Lead
BKF
Remote, United States
Develop professional Paleontological Resources Impact Mitigation Program (PRIMP) for complex projects.
Added 3 hours ago
Cultural Resources Discipline Lead
BKF
Remote, United States
Develop professional Paleontological Resources Impact Mitigation Program (PRIMP) for complex projects.
Added 3 hours ago
Cultural Resources Discipline Lead
BKF
Remote, United States
Develop professional Paleontological Resources Impact Mitigation Program (PRIMP) for complex projects.
Added 3 hours ago
Cultural Resources Discipline Lead
BKF
Remote, United States
Develop professional Paleontological Resources Impact Mitigation Program (PRIMP) for complex projects.
Added 3 hours ago
Cultural Resources Discipline Lead
BKF
Remote, United States
Develop professional Paleontological Resources Impact Mitigation Program (PRIMP) for complex projects.
Added 4 hours ago
BH
Regulatory Analyst I, II or Senior
Black Hills Energy
Golden, CO
- $31,533 USD / year
Added 4 hours ago
BH
Financial Analyst II or Senior Analyst
Black Hills Energy
Golden, CO
- $31,533 USD / year
…by partnering with the business unit Vice President, General Manager, and department heads to support decision making, planning, forecasting, and strategy execution.* Assist in the…
Added 5 hours ago
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Oakland Livingston Human Service Agency
Pontiac, MI
- $21.7 USD / hour
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Registered Nurse- Assistant Nurse Manager
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PROGRAM SPECIALIST - RISK ANALYST I
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- $38.48 USD / hour
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Nuclear Operations Technician I / Nuclear Operations Technician II - Oconee Nuclear Station
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X-Energy, LLC

Engineer II-IV, Reactor Physics

Rockville, MD, United States

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

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Job details

Pay: 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
Posting language: English
Posted: Nov 6, 2026

Original job description

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 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: 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.

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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More about this job

Skills

Engineering principles
Scheduling
Assembly
Presentation skills
Communication skills
Research
ANSYS Multiphysics
Software development
Nuclear physics

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