Reactor Engineer or Scientist (Severe Accident/Source Term)

Rockville, Maryland
Oct 22, 2021
Oct 29, 2021
Engineer, IT, QA Engineer
Full Time


This position is located in the Office of Nuclear Reactor Regulation, Division of Advanced Reactor and Non-power Production and Utilization Facilities, Technical Branch 2. Supervisor: Michelle Hayes. This position is in the Bargaining Unit.

This position is subject to Confidential Financial Disclosure reporting requirements.

This position is subject to security ownership restriction reporting requirements

There may be multiple selections made from this announcement.

Learn more about this agency


As a Reactor Engineer, you will serve as technical reviewer for assignments associated with severe accidents and source term for advanced and non-power facility reactors to assure public health and safety and protection of the environment. Activities may include:
  • Applying risk-informed decision making and performance-based principles during review of non-light-water-reactor and non-power facility submittals to evaluate the implementation of NRC regulations and guidance associated with severe accidents and source term to assure public health and safety and protection of the environment.
  • Evaluating complex issues associated with the review of severe accidents and source terms in non-light water reactors and non-power facilities, including reviewing technical reports, assessing readiness, reviewing plans to close gaps, and developing regulations and guidance.
  • Developing policy and guidance and evaluating vendor submittals, reactor applications, and licensing actions.
  • Providing technical assistance, advice, and recommendations to NRC management and staff and communicating highly complex and/or precedent setting issues related to severe accidents and source term with internal and external stakeholders.
  • Evaluating the functional capability of nuclear power plant safety systems, equipment, and procedures needed for safe plant shutdown following abnormal events, the response of containment (or functional containment) and the behavior of hydrogen and fission products and the radiological consequences of severe accidents. Also responsible for analysis of accident source terms and the environmental impact of design basis and severe accidents.

The selectee should have excellent oral and written communication skills.

Travel Required

Occasional travel - Occasional travel may be required.

Supervisory status

Promotion Potential


Conditions of Employment

  • This is a Drug Testing position.

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.


In addition to the educational requirements to qualify for this position, you must have at least one year of specialized experience at the next lower grade level (GG-13) in the Federal Service or equivalent experience in the private or public sector.

Specialized Experience is defined as experience in severe accident analysis or radiological consequence analysis as it relates to nuclear facility design and operation. Experience in the areas of fuel design, core design, and thermal-hydraulic design for design basis accident analyses can be considered specialized experience for the purposes of severe accident analysis.


GG-0801 (General Engineering Series):

Basic Requirements:
  • 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
  • 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 meeting additional OPM requirements.

GG-1301, (General Physical Science Series):

Basic requirements:
  • Degree: physical science, engineering, or mathematics that included 24 semester hours in physical science and/or related engineering science such as mechanics, dynamics, properties of materials, and electronics. OR
  • Combination of education and experience -- education equivalent to one of the majors shown in A above that included at least 24 semester hours in physical science and/or related engineering science, plus appropriate experience or additional education.

Additional information

This position is subject to security ownership restriction reporting requirements.

This position is not subject to Office of Government Ethics Confidential Financial Disclosure reporting requirements (subject to change).

Telework - Following the agency's re-entry date of November 7, 2021, the position advertised in this vacancy announcement is not approved for full-time remote or full-time fixed telework. However, most NRC positions are eligible for some type of telework, in accordance with agency policy.

How You Will Be Evaluated

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

Applications will be evaluated based on the information provided in the resume and response to the vacancy supplemental question against the specialized experience and education requirements for this position. Qualified applicants will be forwarded to the hiring manager for possible interview and selection.

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 thorough resume that directly relates to this position. Ensure that your resume addresses how you meet the Specialized Experience Requirement and Ideal Candidate criteria. Be sure to provide plenty of detail that addresses how you meet the specific job requirements.

If selected for an interview, you will be contacted directly by a hiring manager via the contact information you provided in your application. Applicants should not expect to receive additional status updates.

To preview questions please click here .

Background checks and security clearance

Security clearance
L Access Authorization

Drug test required

Required Documents

List of supplemental material that may be applicable:

If you are a NRC employee you are required to submit your most recent Rating of Record (Performance Appraisal) or a statement saying that one is not available.

If you are a current/reinstatement eligible Federal employee with status (Tenure Group 1 or 2), you will be considered under our merit promotion procedures and must submit a copy of your most recent SF-50 (Notification of Personnel Action) to verify competitive status or reinstatement eligibility.

Veterans' Preference documentation, if applicable (e.g. DD-214 Member Copy 4 showing type of discharge/character of service; Current Active Duty members must submit a certification of expected discharge or release from active duty under honorable conditions dated within 120 days; SF-15 Form and related documentation; VA letter.) You can find additional information about Veterans' Preference at

You must include an unofficial or official copy of your college and/or university transcripts with your application. Education must be from an accredited (or pre-accredited) college or university recognized by the U.S. Department of Education. If you are qualifying based on foreign education, you must submit proof of credibility of education as evaluated by a credentialing agency.

All supplemental documents will now be collected electronically and should be submitted before the closing date of this vacancy announcement. File uploads are limited to 5MB in size per document. If your file size exceeds 5MB it will not upload. You can reduce the file size by using the reduce file size feature in Adobe Acrobat before upload. You have three choices for submitting your supplemental documents:

1. Use the "USAJOBS" feature to download documents from your USAJOBS portfolio; or
2. use the "Upload" feature to upload documents directly from your computer. The following types of documents can be uploaded: .gif, .jpeg, .png, .rtf, .pdf, and .doc; or
3. use the "Fax" feature to print the Fax Cover Sheet and fax it, along with your supplemental documents to 1-571-258-4052.

If you are relying on your education to meet qualification requirements:

Education must be accredited by an accrediting institution recognized by the U.S. Department of Education in order for it to be credited towards qualifications. Therefore, provide only the attendance and/or degrees from schools accredited by accrediting institutions recognized by the U.S. Department of Education .

Failure to provide all of the required information as stated in this vacancy announcement may result in an ineligible rating or may affect the overall rating.

Similar jobs