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Mechanical Engineer - Nuclear

Mesa Brand
Chattanooga, TN Full Time
POSTED ON 5/20/2026
AVAILABLE BEFORE 7/20/2026

GIG Nuclear / Generation Industrial & Government

This position is not eligible for recruiting or sourcing by outside parties.

Disclaimer: Be cautious and only respond to emails from our “mesainc.com” domain. We will never ask for sensitive information, such as bank account details, SSN, etc., via email. If you receive any communication asking for such information, it is not from Mesa. For any concerns, or to verify the authenticity of a message, please contact us through our official channels.

The position is hybrid working a minimum of 3 days in the office, typically Tuesday through Thursday, with the ability to work from home the remaining workdays. Candidates must be able to travel to plant sites when needed (approx. 6-8 days/month with ability to support longer durations).

We’ve got the power to energize your career and spark YOUR work/life balance through professional development and exceptional benefits. Don’t delay, plug in today for an inclusive and meaningful career. Mesa Associates, Inc. is a woman/minority-owned full-service engineering, procurement, and project management firm covering power, defense, aerospace, industrial, commercial, and municipal entities. We specialize in power generation and delivery services. Our Nuclear Services Division specializes in providing high-quality engineering, procurement, design, and project management for operating and new reactor clients, and partners with our other divisions to integrate nuclear design with electrical high-voltage, substations, switchyard, transmission line, distribution, and artificial intelligence integration design. We have been in the top 10 of EC&M's Top 40 Electrical Design Firms since 2012. With over 1,000 associates, we are big enough to perform, but small enough to care!

Education/Experience/Licensure:

  • Bachelor of Science degree in Mechanical or Nuclear Engineering from an accredited university (required)
  • EIT (highly preferred) – or ability to obtain EIT within one year of employment (required)
  • Previous design experience related to modifications in nuclear (DOE or commercial) plants (preferred) 
  • 4 years' experience working with multiple operating nuclear clients and vendors (preferred)
  • Ability to obtain unescorted access at an operating or construction nuclear plant (required)
  • Basic knowledge of mechanical design codes (ASME, ANSI, API, NFPA)
  • Proficient computer skills (e.g. Microsoft Office Suite). Additional software skills including Bluebeam, MicroStation, AutoCAD, Vault, Plant3D, Inventor, ReCap, SolidWorks, FARO Scene, and other 3D rendering programs (preferred)

Responsibilities:

  • Participate in the development of deliverables for nuclear projects within the Mechanical and/or Nuclear discipline
  • Report to an assigned Project Engineer and act as a Design Engineer for Mechanical and/or Nuclear projects
  • Be responsible for working with other engineers and designers to prepare design change packages for modifications at operating nuclear plants and other associated nuclear facilities
  • Be proficient in preparation of engineering change packages (EC’s)
  • Conduct field walkdowns to determine existing configuration of plant structures, systems, and components
  • Follow a strict adherence to mechanical codes and standards

Successful candidates will:

  • Possess the ability to interpret codes and, regulations, and standard practices
  • Be able to demonstrate adaptability; must be proficient in identifying, troubleshooting, and resolving issues within a nuclear power plant environment
  • Have effective oral and written communication skills (includes technical writing)
  • Possess excellent communication skills and ability to interface with customers and internal team members under a matrixed organization

Notice to External Search Firms: Mesa Associates, Inc. and its subsidiaries do not accept unsolicited resumes and will not be obligated to pay a placement fee for unsolicited resumes. Mesa Associates, Inc. Talent Acquisition engages with approved search firms directly for specific hiring needs.

Salary.com Estimation for Mechanical Engineer - Nuclear in Chattanooga, TN
$83,883 to $101,061
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