Senior Nuclear Mechanical Engineer - Design & Field Lead

Mesa Brand; Chattanooga (TN); Hybrid; USD 120,000 - 150,000; Full time

Job summary

Mesa Associates is seeking a Senior Mechanical Engineer to lead design, analysis, procurement, construction, and implementation of modifications at commercial nuclear power plants and other nuclear facilities.

This role requires independent management of complex mechanical work, mentoring staff, and collaboration with clients, vendors, and multidisciplinary teams. Hybrid schedule with travel ~6–8 days/month and field assignments as needed.

Qualifications

• Active Professional Engineering registration. Candidates who are eligible and able to obtain their license within one year from active employment.
• Bachelor of Science degree in Mechanical Engineering from an ABET-accredited engineering program.
• Minimum of six years of relevant mechanical engineering, including at least four years supporting modifications at operating nuclear power plants.
• Demonstrated experience independently developing and coordinating mechanical engineering calculations, evaluations, specifications, drawings, reports, and design change packages.
• Demonstrated experience leading mechanical portions of projects, coordinating technical interfaces, and managing assigned scope, quality, schedule, and budget expectations.
• Strong working knowledge of applicable mechanical codes, standards, regulations, licensing-basis requirements, configuration-control practices, and accepted engineering methods.
• Experience performing or overseeing field walkdowns, evaluating existing plant configuration, defining design inputs and resolving field or constructability issues.
• Experience independently reviewing and checking mechanical calculations, specifications, drawings, and engineering change documentation in accordance with assigned qualifications.
• Effective technical writing, verbal communication, organization, leadership, and problem-solving skills.
• Ability to interface professionally with clients, vendors, project managers, construction personnel, and multidisciplinary engineering teams.
• Experience with one or more engineering design tools such as AutoCAD, MicroStation, Plant3D, Inventor, ANYSYS, Solidworks, ReCap, FARO Scene, Vault, or comparable software.
• Proficiency with Microsoft Office applications.

Responsibilities

• Lead the mechanical engineering scope for commercial nuclear modification projects and support multidiscipline project execution.
• Act as the Mechanical Project Engineer for assigned projects with responsibility for technical scope, interfaces, quality, schedule, budget and client communication.
• Serve as technical point of contact for clients and provide mechanical discipline expertise during planning, design, procurement, construction, testing and implementation.
• Prepare, review, and coordinate mechanical calculations, evaluations, specifications, drawings, reports, and design change documentation.
• Establish and verify design inputs using plant drawings, calculations, procedures, specifications, licensing and design-basis documents, vendor information, field data, and applicable codes and standards.
• Prepare and coordinate engineering change packages for modifications at operating nuclear plants and associated nuclear facilities.
• Develop scoping documents, proposals, labor estimates, schedules, assumptions, exclusions, and required-input lists for mechanical engineering and design activities.
• Conduct and lead field walkdowns to verify plant conditions, identify interfaces, obtain measurements, evaluate constructability, and support installation planning.
• Coordinate mechanical requirements and interfaces with civil, structural, electrical, instrumentation and controls, procurement, construction, project management, clients, and vendors.
• Perform or oversee qualified reviews and checks of engineering calculations, specifications, drawings, and design change packages.
• Provide technical direction, task guidance, mentoring, and constructive review feedback to engineers and designers.
• Identify and resolve technical risks, missing information, field conflicts, design-basis concerns, constructability issues, and schedule or budget impacts.
• Review vendor drawings, technical submittals, equipment data, and procurement documentation for compliance with design and project requirements.
• Lead or support client meetings, design reviews, vendor discussions, constructability reviews, implementation support, testing, and outage activities.
• Maintain complete, accurate, and traceable engineering records in accordance with company and client procedures.

Skills

Technical leadership

Engineering calculations

Field walkdowns

Project coordination

Client communication

Mentoring

Problem solving

Microsoft Office

Education

Bachelor of Science in Mechanical Engineering

Professional Engineer (PE) license

Tools

AutoCAD

MicroStation

Plant3D

Inventor

ANYSYS

Solidworks

ReCap

FARO Scene

Vault

Job description

Mesa Associates is seeking a Senior Mechanical Engineer to lead design, analysis, procurement, construction, and implementation of modifications at commercial nuclear power plants and other nuclear facilities.

This role requires independent management of complex mechanical work, mentoring staff, and collaboration with clients, vendors, and multidisciplinary teams. Hybrid schedule with travel ~6–8 days/month and field assignments as needed.