Lead Mechanical Engineer – Nuclear Plant Upgrades

Mesa Associates, Inc; Chattanooga (TN); Hybrid; USD 120,000 - 180,000; Full time

Job summary

Mesa Associates, Inc. seeks a Senior Mechanical Engineer to provide technical leadership for design, analysis, procurement, construction, and implementation of nuclear plant modifications.

You will lead mechanical scopes, act as a technical contact, perform analyses, and ensure codes, standards, and client expectations are met. The role requires independent management of complex mechanical work, mentorship of engineers, and contribution to proposals and planning.

Qualifications

• Active Professional Engineering registration or eligible within one year.
• B.S. in Mechanical Engineering from ABET-accredited program.
• Minimum six years of mechanical engineering experience, including four years in nuclear plant modifications.
• Ability to develop and coordinate mechanical calculations, specs, drawings, reports, and change packages.
• Experience leading mechanical portions of projects and managing scope, quality, schedule, and budget.
• Knowledge of mechanical codes, standards, licensing-basis requirements, and configuration-control practices.
• Experience with field walkdowns and interfacing with multidisciplinary teams.
• Proficiency with Microsoft Office.
• Experience with one or more design tools such as AutoCAD, MicroStation, Plant3D, Inventor, ANSYS, SolidWorks, or related software.

Responsibilities

• Lead the mechanical engineering scope for nuclear modification projects and support multidisciplinary execution.
• Act as Mechanical Project Engineer with responsibility for scope, interfaces, quality, schedule, and client communication.
• Serve as technical point of contact for clients and provide discipline expertise across planning, design, procurement, construction, testing, and implementation.
• Prepare, review, and coordinate mechanical calculations, specs, drawings, reports, and design change documents.
• Develop design inputs from plant drawings, calculations, procedures, and licensing documents.
• Coordinate engineering change packages for operating nuclear plants and related facilities.
• Develop scoping documents, proposals, labor estimates, and schedules for mechanical activities.
• Conduct field walkdowns to verify conditions, capture measurements, assess constructability, and plan installations.
• Interface with civil, structural, electrical, I&C, procurement, construction, PMs, clients, and vendors.
• Mentor engineers and designers, perform reviews, and address risks and constructability issues.
• Maintain traceable engineering records per procedures.

Skills

Leadership

Technical writing

Communication

Problem solving

Client interfacing

Team mentoring

Project coordination

Field walkdowns

Education

ABET-accredited B.S. in Mechanical Engineering

Professional Engineering registration

Tools

AutoCAD

MicroStation

Plant3D

Inventor

ANSYS

SolidWorks

CAESAR II / AutoPIPE

Job description

Mesa Associates, Inc. seeks a Senior Mechanical Engineer to provide technical leadership for design, analysis, procurement, construction, and implementation of nuclear plant modifications.

You will lead mechanical scopes, act as a technical contact, perform analyses, and ensure codes, standards, and client expectations are met. The role requires independent management of complex mechanical work, mentorship of engineers, and contribution to proposals and planning.