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Nuclear Criticality Engineer IV
Job Code:2022-ETA-006
Location:Paducah, KY
Duration:Direct Hire

Job Responsibilities:

Position:   Nuclear Criticality Safety Engineer IV                 

Division:   ETAS

Duration:  Direct Hire

Location:  Paducah, KY


Company Description: 

ETAS Inc. has upcoming opportunity for a Nuclear Criticality Safety Engineer IV (Direct Hire) position at our office in Paducah, KY.  Please submit resumes via the web page link below.  


Enterprise Technical Assistance Services, Inc. (ETAS), is a wholly owned subsidiary of Professional Project Services, Inc (Pro2Serve). ETAS was formed and dedicated to support the Department of Energy (DOE) Portsmouth/Paducah Project Office (PPPO) with technical and management services contributing to the safe and cost effective implementation of the “One PPPO” mission.


The parent company, Pro2Serve, is a nationally recognized environmental, technical, and engineering services firm dedicated to providing critical environmental management services to reduce the Nation’s environmental liabilities and infrastructure engineering services in support of our Nation’s security. We support the energy, defense, and science markets through responsive, cost-effective execution of critical environmental, facilities and infrastructure, and nuclear defense and nonproliferation projects.


Job Description

Under limited supervision, performs Nuclear Criticality Safety (NES) Engineering job functions as assigned by management. 

Typical job responsibilities assist and support management in NCS program implementation and engineering system design; which may include duties or activities in one more of the following areas, in addition to other duties assigned:


  • Performs tracking and trending NCS performance
  • Prepares NCS Evaluations (NCSEs) and NCS Determinations (NCSDs) when qualified
  • Performs peer review of NCSEs NCSDs and NCS Calculation documents
  • Performs maintenance and supports NCS operability or engineering evaluations when necessary
  • Prepares disposition problem reports
  • Performs project engineering functions involving monitoring of progress and preparation of procedures
  • Identifies and evaluate project issues and problems
  • Prepares forecasts, quality take-offs and change orders
  • Conducts feasibility studies and evaluates potential technologies
  • Performs research to analyze and validate design or theory concepts
  • Responsible for technical ownership of assigned NCS projects
  • Subject matter expert for multiple assigned NCS projects
  • Responsible for training preparation and facilitation
  • Evaluates operations and proposed modifications to determine compliance with engineering disciplines and standards, federal, state or local statues and regulations as well as project/company policy
  • Prepares NCS health recovery and improvement plans
  • Prepares preliminary and final specifications and designs
  • Lead role for projects as assigned
  • Partners with senior NCS Engineers in completing assigned engineering tasks and job functions
  • Ensures compliance with DOE regulations and standards
  • Interfaces with other technical and production organization to compile technical information required for document preparation
  • Interfaces with other groups inside and outside the organization and management
  • Serves as a resource for lower level positions
  • Provides assigned technical or functional support to team members
  • Performs a variety of tasks complex in nature
  • Other job related duties as assigned
  • Maintains knowledge of and demonstrates ability to perform work safely in accordance with all approved safety policies, procedures and applicable regulations and performs assigned duties in a safe manner
  • Actively participates in Safety Work Groups


Job Requirements

Bachelor’s Degree in science or engineering from an accredited college or university.

Twenty years’ experience in NCS, including development of NCSEs or directly applicable experience.

Recent working knowledge of MCNP, KENO or similar models and use of double contingency principle.

Knowledge of DOE and nuclear industry criticality safety standards and requirements.

Ability to perform independent criticality safety reviews of nuclear facilities, criticality safety evaluations, and facility safety basis documents to ensure that applicable DOE and nuclear industry requirements are met.

Experience in principles of nuclear physics, chemistry, mathematics, mechanics of materials, and the ability to read process and equipment drawings.

Experience in supporting DOE operations and designs.

Gaseous Diffusion Plant experience.


Preferred Qualifications

NRC experience

D&D, D&R or S&M project experience

Nuclear facility experience


Direct Hire


Federal Government Clearance:

This position may require the ability to obtain a government clearance. This position may require reviews and test for absence of any illegal drugs along with a background investigation by the Federal government in order to obtain an access authorization prior to employment, and may require subsequent reinvestigations may be required.


EEO Employer:

Affirmative Action Employer—M/F/Vet/Disab/LGBT



E-TAS benefits package has carefully designed to meet the needs of our employees and their families.


These benefits include:

  • Major Medical Plan with Prescription Card, Dental Plan, Vision, and Disability Insurance
  • Retirement Plan 401(k)
  • Employee Stock Ownership Program (ESOP)
  • Comprehensive Leave
  • Holidays



Pay Rate:
Please submit salary or hourly rate requirements along with resume or in a cover letter.


Job location:

Paducah, KY area

Please submit resumes via the web page link.


If you meet the above requirements/qualifications, please click the Apply Now button to submit your resume to be considered for this position, as well as added to our national database.  We look forward to talking with candidates who have the requisite skills and experience level.