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Sr. Reactor Engineer (Modeling & Simulation)

Nuclear Regulatory Commission
Office of Nuclear Regulatory Research

Summary

This position is located in Division of Engineering.
The supervisor is Raj Iyengar.
This position IS subject to Confidential Financial Disclosure reporting requirements. This position IS subject to security ownership restriction reporting requirements.

Overview

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Open & closing dates
04/23/2026 to 05/04/2026
Salary
$147,945 - $197,200 per year

Actual salary will be based on duty location.

Pay scale & grade
GG 15
Locations
1 vacancy in the following locations:
Atlanta, GA
Naperville, IL
Rockville, MD
King of Prussia, PA
Remote job
No
Telework eligible
Yes—as determined by the agency policy.
Travel Required
Occasional travel - You may be expected to travel for this position.
Relocation expenses reimbursed
No
Appointment type
Permanent
Work schedule
Full-time
Service
Excepted
Promotion potential
None
Job family (Series)
Supervisory status
No
Security clearance
L Access Authorization
Drug test
Yes
Position sensitivity and risk
Noncritical-Sensitive (NCS)/Moderate Risk
Trust determination process
Financial disclosure
Yes
Bargaining unit status
No
Announcement number
IMP-12940100-26-KV
Control number
866279700

This job is open to

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Clarification from the agency

Applications will be accepted from current employees of the U.S. Nuclear Regulatory Commission on a permanent or competitive term appointment only.

Duties

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As a Senior Reactor Engineer (Modeling & Simulation), provides thorough technical assessments of engineering aspects of reactor systems involving modeling and simulation of the design, analysis, fabrication, operation, maintenance and testing of reactor systems and components. Specific areas of technical assessments will involve structural and component performance and dynamics of mechanical systems, using multi-physics and artificial intelligence/machine learning algorithms and data analysis. Evaluates the technical issues and resolutions of application of digital twins, big data engineering, domain expertise (e.g., data cleansing, data management, analytics, visualization and engineering), statistics and machine learning.

Such duties include but are not limited to:

  • As the senior technical expert, provides thorough technical assessments of engineering aspects of reactor systems involving modeling and simulation of the design, analysis, fabrication, operation, maintenance and testing of reactor systems and components. Specific areas of technical assessments will involve structural and component performance and dynamics of mechanical systems, using multi-physics and artificial intelligence/machine learning algorithms and data analysis.
  • As the senior expert, evaluates the technical issues and resolutions of application of digital twins, big data engineering, domain expertise (e.g., data cleansing, data management, analytics, visualization and engineering), statistics and machine learning.
  • Interprets and consolidates complex and diverse technical data, views and recommendations into concise technical bases and positions to be developed into an overall technical resolution.

Requirements

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Conditions of employment

You must meet the qualifications for this position by no later than 30 calendar days after the closing date of this announcement and before placement in the position.

All information in your resume must be true and accurate.

Conditions of Employment:

  • This is a Drug Testing position
  • Must be able to meet and maintain security & suitability requirements.

Qualifications

In order to qualify for this position, you must have at least one year of specialized experience at the next lower grade level in the Federal service or equivalent experience in the private or public sector.

SPECIALIZED EXPERIENCE is defined as: experience that demonstrates a knowledge of the design, construction, operation, inspection, and/or evaluation of nuclear plant components, structures, and/or facilities to understand the value and impact of the requirements of proposed standards.

A description of how you possess the specialized experience as well as how you meet the qualifications desired in an ideal candidate should be addressed in your resume.

The ideal candidate will be able to demonstrate the following:
1. Demonstrated knowledge of the design, construction, operation, inspection, and evaluation of nuclear plant components, structures, and facilities to understand the value and impact of the requirements of proposed standards.

(Example) Describe specific training, education, and work experience that demonstrates your knowledge of the design, analysis, fabrication, operation, maintenance and testing of reactor systems and components sufficient to understand the value and impact of the requirements of the proposed standard. Examples may include:

  • technical assessments of engineering aspects of reactor systems involving modeling and simulation of systems, structural, and component performance and dynamics of mechanical systems, using multi-physics and artificial intelligence/machine learning algorithms and data analysis, and/or
  • the technical issues and resolutions of application of digital twins, big data engineering, domain expertise (e.g., data cleansing, data management, analytics, visualization and engineering), statistics and machine learning.
2. Demonstrated knowledge of NRC's regulations, principles and procedures, regulatory guides, and industry codes and standards applicable to the safety of reactor systems, structures, and components.

(Example) Describe your experience that demonstrates your knowledge of NRC's regulations, principles and procedures, regulatory guides, and industry codes and standards applicable to the reactor systems, structures, and components. Examples may include experience that shows understanding of risk-informed approaches or impact of technological advances related to the safety of reactor systems, structures, and components.

3. Demonstrated ability to plan, coordinate, and control complex engineering, technical, and inspection projects.


(Example) Describe your experience that demonstrates your ability to plan, coordinate, and control complex engineering, technical, and inspection projects. Provide examples of relevant projects that you have led. Describe the scope of the projects, the identification of technical challenges and their resolution, and your specific role in the projects.


4. Demonstrated ability to communicate effectively orally and in writing with a broad range of audiences on technical issues, challenges, and resolutions.

(Example) Describe specific experiences and accomplishments communicating effectively orally and in writing with a broad range of audiences on technical issues, challenges, and resolutions. Describe examples of significant oral communications and impactful written products.

A description of how you possess the specialized experience as well as how you meet the qualifications desired in an ideal candidate must be addressed in your resume. The NRC encourages applicants to provide job experience details in your resume. Applicants may also use the supplemental vacancy question to provide additional information pertaining to the specialized experience and ideal candidate criteria.

PLEASE BE CLEAR AND CONCISE. WE WILL NOT MAKE ASSUMPTIONS REGARDING YOUR EXPERIENCE.

Education

A. Degree: Engineering. To be acceptable, the program must: (1) lead to a bachelor's degree in a school of engineering with at least one program accredited by ABET; or (2) include differential and integral calculus and courses (more advanced than first-year physics and chemistry) in five of the following seven areas of engineering science or physics: (a) statics, dynamics; (b) strength of materials (stress-strain relationships); (c) fluid mechanics, hydraulics; (d) thermodynamics; (e) electrical fields and circuits; (f) nature and properties of materials (relating particle and aggregate structure to properties); and (g) any other comparable area of fundamental engineering science or physics, such as optics, heat transfer, soil mechanics, or electronics.

OR

B. Combination of education and experience -- college-level education, training, and/or technical experience that furnished (1) a thorough knowledge of the physical and mathematical sciences underlying engineering, and (2) a good understanding, both theoretical and practical, of the engineering sciences and techniques and their applications to one of the branches of engineering. The adequacy of such background must be demonstrated by one of the following:

1. Professional registration or licensure -- Current registration as an Engineer Intern (EI), Engineer in Training (EIT)1, or licensure as a Professional Engineer (PE) by any State, the District of Columbia, Guam, or Puerto Rico. Absent other means of qualifying under this standard, those applicants who achieved such registration by means other than written test (e.g., State grandfather or eminence provisions) are eligible only for positions that are within or closely related to the specialty field of their registration. For example, an applicant who attains registration through a State Board's eminence provision as a manufacturing engineer typically would be rated eligible only for manufacturing engineering positions.

2. Written Test -- Evidence of having successfully passed the Fundamentals of Engineering (FE)2 examination or any other written test required for professional registration by an engineering licensure board in the various States, the District of Columbia, Guam, and Puerto Rico.

3. Specified academic courses -- Successful completion of at least 60 semester hours of courses in the physical, mathematical, and engineering sciences and that included the courses specified in the basic requirements under paragraph A. The courses must be fully acceptable toward meeting the requirements of an engineering program as described in paragraph A.

4. Related curriculum -- Successful completion of a curriculum leading to a bachelor's degree in an appropriate scientific field, e.g., engineering technology, physics, chemistry, architecture, computer science, mathematics, hydrology, or geology, may be accepted in lieu of a bachelor's degree in engineering, provided the applicant has had at least 1 year of professional engineering experience acquired under professional engineering supervision and guidance. Ordinarily there should be either an established plan of intensive training to develop professional engineering competence, or several years of prior professional engineering-type experience, e.g., in interdisciplinary positions. (The above examples of related curricula are not all-inclusive.)





You must include an unofficial or official copy of your college and/or university transcripts with your application. Transcript must include the School Name, Student Name, Degree and Date Awarded (if applicable). Education must be from an accredited (or pre-accredited) college or university recognized by the U.S. Department of Education. If you have multiple degrees (e.g., BS, MS, PhD) please submit transcripts for each degree.

FOREIGN EDUCATION: Education completed in foreign colleges or universities may be used to meet the requirements. You must show proof the education credentials have been deemed to be at least equivalent to that gained in a conventional U.S. education program. It is your responsibility to provide such evidence when applying. For special instructions pertaining to foreign education and a list of organizations that can evaluate foreign education, see the Department of Education website. If you are qualifying on foreign education, you MUST submit proof of creditability of education as evaluated by a credentialing agency. Transcripts must be uploaded with your application to verify education. All documentation must be in English or include an English translation.

Additional information

This position may be eligible for situational telework in accordance with agency policy.

This job opportunity announcement may be used to fill additional vacancies.

Candidates should be committed to improving the efficiency of the Federal government, passionate about the ideals of our American republic, and committed to upholding the rule of law and the United States Constitution.

How you will be evaluated

You will be evaluated for this job based on how well you meet the qualifications above.

When the application process is complete, your application will be reviewed to determine if you meet the job requirements. Your application will be evaluated based on the information provided in your resume and responses to any vacancy questions to determine your level of knowledge, skills, and abilities related to the job requirements. You must respond to all required application questions.

If you are among the top candidates for this position, your application will be referred to the hiring manager for possible interview and selection based upon the number of available vacancies to be filled in each office.

Your resume is the key means we have for evaluating your skills, knowledge, and abilities as they relate to this position. Therefore, we encourage you to submit a concise resume that directly relates to this position.

Nuclear Regulatory Commission

If you are curious, inspired, or interested in bringing your energy to a committed team in a dynamic science, engineering, technical, or administrative career, consider the U.S. Nuclear Regulatory Commission (NRC). We are professionals dedicated to protecting people and the environment by safeguarding the use of nuclear materials in medicine, industry, and research.

NRC is an independent agency established to protect public health and safety as nuclear energy fuels electrical power and a variety of industrial, medical, and research applications. We come from varied educational and experiential backgrounds-the military, industry, and academia.

The NRC prides itself on creating a work environment rich in opportunity, leadership, training, teamwork and work life balance. Help guide our nation into the next generation of nuclear safety by completing your USAJOBs profile and reviewing our job announcements! Begin a challenging career with the NRC where you can be a part of a select group of professionals who protect people and the environment with the peaceful use of nuclear materials in medicine, industry and research.

Agency contact information

Kreslyon Valrie
Phone
301-287-0714
Email
kreslyon.valrie@nrc.gov
Address
Division of Engineering
11555 Rockville Pike
Rockville, MD 20852
US

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https://www.nrc.gov/about-nrc/employment

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