Major Projects - Mechanical Engineering Manager

Vistra Corp.; Oak Harbor (OH); On-site; USD 120,000 - 170,000; Full time

Job summary

Vistra Nuclear Operations Company in Oak Harbor, Ohio, seeks a senior mechanical engineer to lead the mechanical scope for Extended Power Uprates (EPU) across multi-billion-dollar projects. You will ensure safe, compliant designs and coordinate with EPCs, OEMs, and site engineers to integrate solutions into plant infrastructure.

The role requires 10+ years in nuclear engineering, with 5+ years in mechanical design or major projects, and strong NRC/ASME/ANSI code knowledge.

Qualifications

• Bachelor’s degree in Engineering is required; Mechanical preferred.
• 10+ years of nuclear engineering experience, with 5+ years in mechanical design or major projects.
• Direct experience with Extended Power Uprates or large-scale plant modifications.
• Strong knowledge of NRC, INPO, ASME, and ANSI codes and standards.
• Ability to lead discipline-specific teams and interface with EPCs, OEMs, and site staff.
• Experience supporting regulatory submittals and NRC/INPO inquiries preferred.

Responsibilities

• Lead mechanical engineering scope for multi-billion-dollar EPU projects, ensuring safety, quality, and schedule adherence.
• Direct and review mechanical system designs, ensuring compliance with ASME, NRC, and fleet standards.
• Coordinate with EPC contractors, OEMs, and site engineering to ensure system compatibility and constructability.
• Support Owner’s Engineer and independent third-party reviews, validating design quality and operational readiness.
• Provide technical leadership in resolving mechanical design issues to maintain outage and project milestones.
• Ensure mechanical modifications support long-term operability, maintainability, and integration into plant systems.

Skills

Nuclear engineering

Mechanical systems design

Leadership

Regulatory compliance

Stakeholder coordination

Education

Bachelor’s degree in Engineering (Mechanical preferred)

Job description

Job Summary

Responsible for leading the mechanical engineering scope of the Power Uprate projects. Ensures high-quality design, modification, and testing of mechanical systems while maintaining compliance with NRC requirements, industry codes, and Vistra standards. Coordinates with EPC partners, OEMs, and site engineering to deliver reliable, constructible, and safe mechanical solutions that integrate seamlessly into plant infrastructure.

Job Description

Key Accountabilities

• Lead mechanical engineering scope for multi-billion-dollar EPU projects, ensuring safety, quality, and schedule adherence.
• Direct and review mechanical system designs, ensuring compliance with ASME, NRC, and fleet standards.
• Coordinate with EPC contractors, OEMs, and site engineering to ensure system compatibility and constructability.
• Support Owner’s Engineer and independent third-party reviews, validating design quality and operational readiness.
• Provide technical leadership in resolving mechanical design issues to maintain outage and project milestones.
• Ensure mechanical modifications support long-term operability, maintainability, and integration into plant systems.

Education, Experience, & Skill Requirements

• Bachelor’s degree in Engineering (required); Mechanical preferred
• 10+ years of nuclear engineering experience, with 5+ years in mechanical systems design, modification, or major projects.
• Direct experience with Extended Power Uprates, large-scale plant modifications, or equivalent projects.
• Strong knowledge of NRC, INPO, ASME, and ANSI codes and standards.
• Demonstrated ability to lead discipline-specific teams and interface with EPCs, OEMs, and site staff.
• Experience supporting regulatory submittals and responding to NRC/INPO questions preferred.

Key Metrics

• On-time delivery of mechanical engineering milestones.
• Compliance with NRC, INPO, and ASME standards.
• Minimal corrective actions from reviews or audits.
• Strong coordination with EPCs, OEMs, and site engineering.
• Mechanical systems integrated successfully into plant operations with proven reliability.
• Successful completion of independent reviews with minimal corrective actions.
• Effective coordination between Project Leadership site engineering, Owner’s Engineer, and third parties.

Job Family

Plant Operations

Company

Vistra Nuclear Operations Company

Locations

Oak Harbor, Ohio

Ohio

We are a company of people committed to: Exceeding Customer Expectations, Great People, Teamwork, Competitive Spirit and Effective Communication.

It is the policy of the Company to comply with all employment laws and to afford equal employment opportunity to individuals in all aspects of employment, including in selection for job opportunities, without regard to race, color, religion, sex, sexual orientation, gender identity, pregnancy, national origin, age, disability, genetic information, military service, protected veteran status, or any other consideration protected by federal, state or local laws.

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