Senior Mechanical Engineer - Nuclear

Senior Mechanical Engineer – Nuclear Services

Mesa Associates, Inc. is seeking a Senior Mechanical Engineer to join our nuclear services team and contribute to the design, analysis, and construction of nuclear facilities.

Location: Chattanooga, TN (hybrid schedule – minimum 3 days in office Tue–Thu, remote possible from Chicago area)

Travel: Candidates must be willing to travel to plant sites and support outages (≈6–8 days/month, longer during outages).

• Bachelor of Science in Mechanical Engineering from an accredited university –
  required
• Master of Science or other advanced engineering degree – preferred
• PE registration –
  highly preferred (or ability to obtain within 1 year)
• Minimum 6 years experience in design and 4 years in design of modifications in nuclear commercial plants
• Experience performing pipe stress analysis using AutoPIPE (or similar) – highly preferred
• Experience with multiple operating nuclear clients, specifically Constellation Nuclear – highly preferred
• On‑site and unescorted access at operating or construction nuclear plant –
  required
• Experience with Industry Standard Design Procedure IP‑ENG‑001 –
  required
• Strong knowledge of mechanical design codes (ASME, ANSI, API, NFPA)
• Proficient computer skills (Microsoft Office, Bluebeam, Micro Station, AutoCAD, Vault, Plant3D, Inventor, ReCap, Solid Works, FARO Scene)

• Support proposal development and guide other engineers in deliverables for nuclear projects within the Mechanical discipline
• Act as Project Engineer for mechanical projects when required and report to assigned Project Engineer / Project Manager
• Serve as technical point of contact for the customer and provide area expertise in industry‑standard design and calculations for commercial nuclear modifications
• Prepare design change packages (ECs) for modifications at operating nuclear plants and other facility
• Prepare scoping documents and proposals to determine extent of modifications and cost estimates for mechanical design activities
• Conduct field walk‑downs to determine existing configuration of plant structures, systems, and components
• Perform broad range of mechanical design activities to support development of design change documentation

• Have design engineering experience associated with commercial nuclear sites
• Be able to interpret codes, regulations, and standard practices
• Demonstrate adaptability and proficiency in troubleshooting and resolving issues in a nuclear power plant environment
• Possess excellent oral and written communication skills (technical writing)
• Interface effectively with customers and internal team members under a matrixed organization

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