Senior Mechanical Engineer - Nuclear

Senior Mechanical Engineer - Nuclear

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. This is an opportunity to play a critical role in the engineering and design processes for commercial nuclear power generation. Mesa’s strategic growth strategy for our commercial nuclear division is to create a ready service pool of available staff to support proposals and projects in nuclear generation.

The position is open to a candidate who is able to work either in our Chattanooga, TN office location on a hybrid schedule working a minimum of 3 days in the office, typically Tuesday through Thursday, with the ability to work from home the remaining workdays, or a remote candidate located near the Chicago, IL area.
Candidates must be able to travel to plant sites and support outages when needed (approx. 6‑8 days/month with ability to support longer durations during outages).

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.

• Bachelor of Science degree in Mechanical Engineering from an accredited university (required)
• Master of Science or other advanced degree in engineering (preferred)
• PE registration (highly preferred) – or ability to obtain PE License within one year of employment (required)
• Minimum of 6 years’ experience in design and 4 years’ experience in design of modifications in nuclear commercial plants
• Experience performing pipe stress analysis using AutoPIPE or a similar software (highly preferred)
• Experience working with multiple operating nuclear clients, specifically Constellation Nuclear, and vendors (highly preferred)
• On‑site and past unescorted access (highly preferred) or ability to obtain unescorted access at an 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 (e.g. Microsoft Office Suite). Additional software skills including Bluebeam, Micro Station, AutoCAD, Vault, Plant3D, Inventor, ReCap, Solid Works, FARO Scene, and other 3D rendering programs (preferred)

• Support proposal development and guide other engineers in the development of deliverables for nuclear projects within the Mechanical discipline
• Report to an assigned Project Engineer and Project Manager on multi‑discipline proposals and projects and act as a Project Engineer for Mechanical projects when required
• Act as a technical point of contact for the customer, and provide area expertise in development of industry standard design and calculations associated with design and construction of commercial nuclear modifications
• 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)
• Prepare scoping documents and proposals to determine extent of modifications required, preparing cost estimates for engineering/design activities for Mechanical
• Conduct field walkdowns to determine existing configuration of plant structures, systems, and components
• Perform a broad range of Mechanical design activities to support development of design change documentation

• Have design engineering experience associated with commercial nuclear sites
• Possess the ability to interpret codes and regulations, and standard practices
• Be able to demonstrate adaptability; 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

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.