Refinery QA/QC Inspector – Welding & NDE Specialist

4526 Marathon Refining Logistics Services LLC; Saint Paul Park (MN); On-site; USD 107,000 - 160,000; Full time

Job summary

Marathon Petroleum Corporation in St. Paul Park, MN is seeking a Quality Assurance Inspector to support refinery QA/QC, MPLX logistics, damage prevention, and asset management systems.

You will coordinate field activities, verify compliance with company and regulatory requirements, and maintain inspection records. Candidates should have API-510/570, AWS CWI within 12 months, a high school diploma, 2 years of relevant experience, and a valid driver’s license.

Qualifications

• High school diploma or GED required.
• API-510 and API-570 certifications required.
• AWS CWI certification within 12 months of hire required.
• Minimum 2 years experience in refining or related industry preferred.
• Valid driver’s license required.
• Eligibility for field, on-call, outage, extended support including nights/weekends.

Responsibilities

• Implement Mechanical Integrity quality requirements; evaluate equipment reliability risks and drive corrective actions.
• Serve as site QA/QC coordinator for fixed equipment, tanks, civil, insulation, and coatings work.
• Oversee welding quality for fabrication and repair; review procedures, materials, NDE, and final acceptance.
• Determine and verify piping weld NDE requirements; support coating, hydrotest, materials verification, and field activities.
• Maintain inspection records and quality documentation in MPC systems (IDMS, iCON, iTAR).
• Interpret regulatory, industry, code and RAGAGEP requirements; support audits and continuous improvement.
• Coordinate damage prevention activities, including utility locating, excavation oversight, and pipeline protection.
• Represent Marathon in pipeline ROW activities; maintain markers and resolve excavation/contractor issues.

Skills

QA/QC principles

Documentation & records

Contractor oversight

Field verification

Communication

Education

High school diploma or GED

Job description

Marathon Petroleum Corporation in St. Paul Park, MN is seeking a Quality Assurance Inspector to support refinery QA/QC, MPLX logistics, damage prevention, and asset management systems.

You will coordinate field activities, verify compliance with company and regulatory requirements, and maintain inspection records. Candidates should have API-510/570, AWS CWI within 12 months, a high school diploma, 2 years of relevant experience, and a valid driver’s license.