Mechanical Project Engineer

Spencer Ogden; Chicago (IL); Hybrid; USD 110,000 - 150,000; Full time

Job summary

Spencer Ogden is seeking a Mechanical Responsible Engineer to support design, plant modifications, and capital projects across commercial nuclear power facilities. You will own mechanical modifications from scope development through design, procurement, installation, testing, and closeout.

This role requires a strong background in mechanical engineering, nuclear plant systems, and EC packages. You will work in a hybrid environment with on-site and remote collaboration, ensuring safety and

Qualifications

• Bachelor's degree in Mechanical Engineering (ABET-accredited preferred).
• 5-15 years of engineering experience within commercial nuclear power generation.
• Experience developing and executing mechanical Engineering Change Packages or nuclear plant modification packages.
• Strong knowledge of nuclear plant mechanical equipment and systems.
• Ability to manage deliverables, coordinate stakeholders and resolve complex technical challenges.

Responsibilities

• Serve as the Responsible Engineer for mechanical design changes at nuclear plants.
• Develop, review, and approve Engineering Change Packages and related docs.
• Manage plant modifications from design to closeout across EPC and field teams.
• Perform calculations for pumps, piping, HVAC, and related systems.
• Coordinate with engineers, operations, maintenance, vendors, and construction personnel.
• Support field walkdowns, investigations, and issue resolution while ensuring regulatory compliance.

Skills

Engineering Change Packages

Mechanical design

Nuclear power knowledge

Project coordination

Communication

Education

ABET-accredited Mechanical Engineering degree

Tools

ASME Section III

ASME B31.1

10 CFR 50.59

Job description

Location: Multiple U.S. Locations - Chicago, IL (Preferred), Minneapolis, MN; Denver, CO; Pittsburgh, PA; Charlotte, NC; Richland, WA; Wilmington; and Chattanooga, TN

Work Arrangement: Hybrid - 3 Days Onsite / 2 Days Remote

Employment Type: 12-Month Contract with Potential for Permanent Conversion

About the Opportunity

We are seeking an experienced Mechanical Responsible Engineer to support engineering design, plant modifications, and capital improvement projects across commercial nuclear power facilities.

This position is ideal for an engineer with a strong background in commercial nuclear power generation, mechanical systems design, and Engineering Change Packages (ECs). The successful professional will take ownership of mechanical modifications from initial scope development through design, procurement, installation, testing, and final project closeout.

Key Responsibilities

• Serve as the Responsible Engineer for mechanical design changes and modifications at commercial nuclear power plants.
• Develop, review, and approve Engineering Change Packages, technical calculations, specifications, and engineering documentation.
• Manage mechanical plant modifications throughout the project lifecycle, including engineering, procurement, construction support, installation, testing, and closeout.
• Perform technical evaluations and engineering calculations involving pumps, valves, piping, HVAC, heat exchangers, and cooling systems.
• Coordinate with engineering teams, operations, maintenance, vendors, and construction personnel to ensure successful project execution.
• Support plant walkdowns, field investigations, troubleshooting, and resolution of installation or design issues.
• Ensure engineering changes comply with applicable nuclear regulatory requirements, industry codes, and plant-specific procedures.
• Provide technical direction and oversight to subcontractors and multidisciplinary engineering teams.
• Maintain accurate configuration management records, as-built documentation, and final modification closeout packages.

Required Qualifications

• Bachelor's degree in Mechanical Engineering from an ABET-accredited engineering program preferred; related engineering disciplines may be considered.
• 5-15 years of engineering experience within commercial nuclear power generation.
• Demonstrated experience developing and executing mechanical Engineering Change Packages or nuclear plant modification packages.
• Strong knowledge of nuclear plant mechanical equipment and systems.
• Experience supporting modifications from design development through field implementation and final closeout.
• Ability to independently manage engineering deliverables, coordinate stakeholders, and resolve complex technical challenges.
• Strong communication, problem-solving, and project coordination skills.

Preferred Qualifications

• Prior experience serving as a designated Mechanical Responsible Engineer at an operating commercial nuclear power plant.
• Knowledge of ASME Section III, ASME B31.1, and applicable nuclear design standards.
• Familiarity with 10 CFR 50.59 screenings and nuclear configuration management procedures.
• Experience with nuclear plant capital projects, equipment replacement, piping modifications, system upgrades, and outage support.
• Previous experience working directly for a nuclear utility or supporting commercial nuclear facilities through an engineering services organization.