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NAS-Sr Consultant

Zachry Group


Job Location:

Cary, MS - USA

Monthly Salary: Not provided by the employer
Posted: 2 October 2026 (3 days ago)
Application Deadline: 30 December 2026
Vacancies: 1 Vacancy

Job Summary

Description

Company: Numerical Advisory Solutions (a Zachry Group Company)

Position: NAS - Sr Consultant

Position Synopsis: A successful candidate will demonstrate the use of independent judgment in performing calculations and/or designs and be able to present and justify analyses to regulatory quality and safety reviews. Individuals will demonstrate expert knowledge of computer languages data structures and software design methods and techniques. A successful candidate will demonstrate the use of independent judgment in performing calculations and/or designs and be able to present and justify analyses to regulatory quality and safety reviews. Individuals will possess superior technical knowledge of nuclear and mechanical disciplines and software engineering. Successful candidates will have the ability to work on cross-disciplined teams with other engineers to evaluate conditions and develop analyses to evaluate plant performance safety and reliability. Individual must have ability to interface and work with software vendors as needed.

Must be familiar with codes and standards applicable to the nuclear sustainability or process industries as well as possess working knowledge of applicable state and federal regulations (including the PHMSA NRC DOE etc.). Good client interface/communication skills and understanding of the roles of other disciplines as well as ability to coordinate and interface with other disciplines are a must.



Responsibilities

Potential Technical Tasks:Throughout the time in this position the following tasks may be performed:

  • Data and information gathering
  • Data manipulation and task automation for analysis input
  • Performing computations and analyses
  • Performing investigations and research of issues/problems
  • Review of calculations/analyses investigations and research
  • Preparation and review of Thermal-Hydraulic Chemical Process Carbon Capture Hydrogen/Ammonia production and/or Radiological computer models
  • Software development verification and validation
  • Design and conduct experiments and analyze results.
  • Independently formulate and solve problems.
  • Develop new solution techniques and/or improved engineering processes.
  • Occasionally mentor personnel on technical approaches processes and techniques.
  • Analyze system specification and translate into software requirements specification.
  • Review and maintain legacy code.
  • Participate in technical design meetings with both staff and clients.
  • Document code in a manner consistent with company standards.
  • Test and review software.
  • Analyzes system specifications and translates to software requirements specification.
  • Develop new techniques and/or improve software development processes.

Managerial Responsibilities: Serves as a project manager of appropriate sized projects. Mentors younger professionals on occasion. Prepares and reviews scopes budgets and schedules for assignments. Prepares proposals for professional services.

Professional Activities: Member of industry organization preferred leadership role or committee participation encouraged; technical presentations/publications support.

Position Location: Position is located at a NAS location (Cary NC Idaho Falls ID Stonington CT or Richland WA) but offers hybrid opportunities for remote work.



Qualifications

Education Required: Bachelors degree in nuclear mechanical or chemical engineering or an appropriate science from an ABET/EAC accredited program.

Experience Required:Twelve(12) years of experience minimum with at least four (4) of those years (since receiving the Bachelors Degree) in the nuclear chemical petrochemical sustainability (e.g. carbon capture hydrogen ammonia energy storage) or aerospace industries. A minimum of six (6) years of experience is considered for candidates who possess a PhD in an appropriate engineering discipline (nuclear mechanical or chemical)

Experience in the analysis design and/or operation of nuclear chemical petrochemical or sustainability plants is desired. Experience with complex computer software such as process simulation thermal-hydraulic or CFD computer code analysis is required.

Individuals who are additionally involved with software development must demonstrate knowledge of computer languages data structures and software design methods and techniques. They are required to have experience maintaining and extending codes developed under a software QA program and are required to have experience in code walkthroughs and reviewing and checking analyses prepared by other engineers.

Other Qualifications: All applicants must possess good oral and written communication skills as well as presentation skills. Proficiency in Microsoft Office software Word Excel and PowerPoint is required. Effective time management skills are required as position may involve working on several projects concurrently. Ability to pass security and drug screening and maintain unescorted nuclear plant access is required. Successful candidates will be required to understand and comply with company policies procedures and processes. Overtime work is required at times. Travel is required to client sites with occasional periods of field/office work. Ability to perform walk downs of equipment in an industrial plant environment to include climbing ladders accessing security-controlled areas and entering confined spaces and controlled hazardous areas is required.

Certain positions at Numerical Advisory Solutions may involve access to information and technology subject to export controls under U.S. law. If applicable to the position the capability of a candidate to comply with such laws will be taken into consideration by Numerical Advisory Solutions in its hiring processes.

Preferred Education:MS or PhD in an appropriate engineering discipline (nuclear mechanical or chemical) from an ABET accredited university is desired.

Preferred Experience:Experience with sustainable hydrogen analysis is desired. Experience in reviewing and checking analyses prepared by other engineers is desired. Knowledge of and experience in project scheduling techniques is a plus. Knowledge of and experience with Ansys and other Computational Fluid Dynamics software products is a plus. Knowledge of and experience with developing and integrating advanced technologies is a plus.

Preferred Certification(s) or License(s) Required:Professional Engineer certification is desired.




Required Experience:

Senior IC


About Company

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Zachry Group is America's pace-setter in turnkey construction, engineering, maintenance, turnaround and fabrication services to the power, energy, chemicals, manufacturing and industrial sectors

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