Engineer I - Sr, Fuels & Core Design (Nuc)

Engineer I - Sr, Fuels & Core Design (Nuc)

Date: May 10, 2026

Location: Jackson, Mississippi, United States

Company: Entergy

Posting End Date:

Work Place Flexibility: Onsite

Legal Entity: Entergy Services, LLC

Job Summary/Purpose

Core Design Engineers are responsible for engineering activities to provide safe, reliable, and predictable core designs, while improving the efficiency and robustness of our designs. In doing so, the position will support Entergy’s nuclear fleet in our mission to provide clean, reliable, and sustainable nuclear energy safely and efficiently.

JOB DUTIES/RESPONSIBILITIES:

• Manage core reload projects including activities associated with the design and licensing of the core, fabrication and transportation of fuel, and contract management.

• Collaborate on fuel and core designs, including strategic fuel design evaluations, to lead the industry in advanced technologies for improved fuel performance, reliability, and cost effectiveness.

• Maintain detailed core models to support site reactor engineering and other plant functions in safely and reliably operating our nuclear fleet.

• Provide reactor physics and fuel criticality expertise to support the analytical and design bases on which each plant was licensed and provide technical oversight of contracted analyses.

• Employ robust designs to ensure that fuel is operated in a safe and reliable manner in accordance with plant design and licensing basis, within design limits, and with sustainable, failure-free performance.

• Support reload and startup activities by ensuring engineering work is performed with quality and predictability; programs are implemented per defined standards; fleet lessons learned are captured and discussed as part of continuous learning culture; and industry best practices are implemented.

MINIMUM REQUIREMENTS:

Minimum education required of the position:

• B.S. degree in Nuclear Engineering, or a closely related discipline (Physical Sciences) with equivalent experience.

• Desired : Master of Science degree in engineering or business administration

Minimum experience required of the position:

• Engineer I : 0+ years of engineering

• Engineer II: 2+ years of experience (1year with a M.S.)

• Engineer III: 4+ years of experience

• Senior Engineer: 6+ years of experience (5+ years with PE)

• Desired : Experience in Reactor Engineering, Safety Analysis, Fuel Engineering, or other Engineering Discipline.

Minimum knowledge, skills and abilities required of the position:

• Technical proficiency in nuclear fuel management.

• Technical understanding of nuclear generation principles and operation.

• Outstanding communication, conflict management, and change management skills.

• Proficiency with current computer business applications.

• Desired: Experience with nuclear design software packages (CASMO/SIMULATE, SCALE, MCNP, etc.).

• Desired: Experience with programming languages (Python, FORTRAN, Visual Basic, etc.) and shell scripting in UNIX/LINUX environments.

Any certificates, licenses, etc. required for the position:

• Desired: Professional Engineering license (Nuclear discipline preferred).

Primary Location: Mississippi-Jackson Mississippi : Port Gibson || Arkansas : Russellville || Louisiana : Killona || Louisiana : St. Francisville

Job Function : Engineering

FLSA Status : Professional

Relocation Option: Level II

Union description/code : NON BARGAINING UNIT

Number of Openings : 1

Req ID: 121690

Travel Percentage :Up to 25%

An Equal Opportunity Employer, Minority/Female/Disability/Vets. Please clickhere ( to view the EEI page, or see statements below.

EEO Statement: The Entergy System of Companies provides equal employment opportunities (EEO) to all employees and applicants for employment without regard to race, color, religion, sex, gender, sexual orientation, gender identity or expression, national origin, age, disability, genetic information, marital status, amnesty, or status as a protected veteran in accordance with applicable federal, state and local laws. The Entergy System of Companies complies with applicable state and local laws governing non-discrimination in employment in every location in which the company has facilities. This policy applies to all terms and conditions of employment including, but not limited to, recruiting, hiring, placement, promotion, termination, layoff, recall, transfer, leaves of absence, compensation, and training.

The Entergy System of Companies expressly prohibits any form of unlawful employee harassment based on race, color, religion, sex, gender, sexual orientation, gender identity or expression, national origin, age, genetic information, disability, or veteran status. Improper interference with the ability of the Entergy System of Company employees to perform their expected job duties is absolutely not tolerated.

Accessibility: Entergy provides reasonable accommodations for online applicants. Requests for a reasonable accommodation may be made orally or in writing by an applicant, employee, or third party on his or her behalf. If you are an individual with a disability and you are in need of an accommodation for the recruiting process please click here (View email address on click.appcast.io?subject=Accessibility) and provide your name, contact number, the accommodation requested and the requisition number that you are requesting the accommodation for. Employee Services will contact you regarding your request.

Additional Responsibilities: As a provider of essential services, Entergy expects its employees to be available to work additional hours, to work in alternate locations, and/or to perform additional duties in connection with storms, outages, emergencies, or other situations as deemed necessary by the company. Exempt employees may not be paid overtime associated with such duties.

Entergy Pay Transparency Policy Statement: The Entergy System of Companies (the Company) will not discharge or in any other manner discriminate against employees or applicants because they have inquired about, discussed, or disclosed their own pay or the pay of another employee or applicant. However, employees who have access to the compensation information of other employees or applicants as a part of their essential job functions cannot disclose the pay of other employees or applicants to individuals who do not otherwise have access to compensation information, unless the disclosure is (a) in response to a formal complaint or charge, (b) in furtherance of an investigation, proceeding, hearing, or action, including an investigation conducted by the employer, or (c) consistent with the Company’s legal duty to furnish information. 41 CFR 60-1.35(c). Equal Opportunity ( and Pay Transparency ( .

Pay Transparency Notice:

Pay Transparency Nondiscrimination Provision (dol.gov) (

The non-confidential portions of the affirmative action program for individuals with disabilities and protected veterans shall be available for inspection upon request by any employee or applicant for employment. Please contact View email address on click.appcast.io to schedule a time to review the affirmative action plan during regular office hours.

WORKING CONDITIONS:

As a provider of essential services, Entergy expects its employees to be available to work additional hours, to work in alternate locations, and/or to perform additional duties in connection with storms, outages, emergencies, or other situations as deemed necessary by the company. Exempt employees may not be paid overtime associated with such duties.

Please note: Authorization to work in the United States is a precondition to employment in this position. Entergy will not sponsor candidates for work visas for this position.

Job Segment: Nuclear Engineering, Nuclear, Developer, Contract Manager, Design Engineer, Engineering, Energy, Technology, Legal