Quality Assurance Inspector

At MPC, we’re committed to being a great place to work – one that welcomes new ideas, encourages diverse perspectives, develops our people, and fosters a collaborative team environment.

Marathon Petroleum is seeking a team-oriented Quality Assurance Inspector to support refinery QA/QC, MPLX logistics, damage prevention, and asset management systems at the St. Paul Park Refinery. This role coordinates field activities, verifies compliance with company and regulatory requirements, oversees welding and NDE quality, maintains inspection records, and supports the execution and closeout of maintenance, project, turnaround, pipeline, and contractor work.

• →Implement Mechanical Integrity quality requirements, evaluate equipment reliability risks, identify quality gaps, and drive corrective actions.
• →Serve as the site QA/QC coordinator for fixed equipment, tanks, civil, insulation, and coatings work, ensuring compliance with company requirements and industry standards.
• →Oversee welding quality for fabrication and repair activities by reviewing procedures, qualifications, materials, fit-up, welding execution, NDE, repairs, and final acceptance.
• →Determine and verify piping weld NDE requirements and support coating, hydrotest, materials verification, and related field quality activities.
• →Maintain inspection records, procedures, and quality documentation in MPC systems, including IDMS, iCON, iTAR, and related reliability databases.
• →Interpret and apply regulatory, industry, code, and RAGAGEP requirements; support audits, continuous improvement initiatives, and other assigned responsibilities.
• →Coordinate damage prevention activities, including utility locating, excavation oversight, line exposure, restoration, pipeline protection, and contractor coordination.
• →Represent Marathon in pipeline right-of-way activities; maintain pipeline markers, interpret underground drawings and maps, and resolve excavation, encroachment, restoration, and contractor-performance issues.

• High school diploma or GED required.
• Possess current American Petroleum Institute API-510 and API-570 certifications required.
• Possess current AWS Certified Welding Inspector (CWI) or ability to obtain and maintain CWI certification within 12 months of hire required.
• Minimum of 2 years of experience in refining, petrochemical, or a related industry preferred.
• Valid driver’s license required.
• Must be available to provide field, on-call, outage, project, and extended support as required, including nights and weekends.

• Additional API or industry certifications relevant to fixed equipment, welding, or NDE preferred.
• Knowledgeable in NDE methods, including Ultrasonic Testing (UT), Radiographic Testing (RT), Magnetic Particle Testing (MT), and Liquid Penetrant Testing (PT).
• Knowledge of Damage Prevention, one-call/811 processes, excavation monitoring, utility locating, pipeline right-of-way protection, and third-party contractor oversight preferred

• Work is performed inside and outside, in differing climatic conditions, and around noises, heat, heights and equipment associated with working in and around an oil refinery.
• Must be able to perform work at ground level and at heights on concrete, metal grating, gravel, asphalt, and piping surfaces, while climbing and working in confined spaces.
• Able to wear all personal protective equipment (P.P.E.)

Marathon Petroleum Company LP (“MPC”) is an equal employment opportunity employer.  All applicants will be considered without regard to their race, color, religion, sex, age, disability, national origin, sexual orientation, genetic information, gender identity, veteran status or other legally protected status. Employees must be able to perform the essential functions of the job with or without reasonable accommodation.

As an energy industry leader, our career opportunities fuel personal and professional growth.

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Marathon Petroleum Company LP is an Equal Opportunity Employer and gives consideration for employment to qualified applicants without discrimination on the basis of race, color, religion, creed, sex, gender (including pregnancy, childbirth, breastfeeding or related medical conditions), sexual orientation, gender identity, gender expression, reproductive health decision-making, age, mental or physical disability, medical condition or AIDS/HIV status, ancestry, national origin, genetic information, military, veteran status, marital status, citizenship  or any other status protected by applicable federal, state, or local laws.  If you would like more information about your EEO rights as an applicant, click here.

If you need a reasonable accommodation for any part of the application process at Marathon Petroleum LP, please contact our Human Resources Department at talentacquisition@marathonpetroleum.com. Please specify the reasonable accommodation you are requesting, along with the job posting number in which you may be interested. A Human Resources representative will review your request and contact you to discuss a reasonable accommodation. Marathon Petroleum offers a total rewards program which includes, but is not limited to, access to health, vision, and dental insurance, paid time off, 401k matching program, paid parental leave, and educational reimbursement. Detailed benefit information is available at mympcbenefits.com. The hired candidate will also be eligible for a discretionary company-sponsored annual bonus program.
 
Equal Opportunity Employer: Veteran / Disability

We will consider all qualified Applicants for employment, including those with arrest or conviction records, in a manner consistent with the requirements of applicable state and local laws. In reviewing criminal history in connection with a conditional offer of employment, Marathon will consider the key responsibilities of the role.

• Strong knowledge of QA/QC principles, documentation, contractor oversight, field verification, and quality closeout requirements.
• Ability to interpret procedures, specifications, drawings, work packages, permits, and quality requirements.
• Strong written and verbal communication skills, including documenting field observations, quality issues, and contractor performance.
• Ability to lead or facilitate meetings and communicate recommendations clearly across multiple levels of the organization.
• Self-motivated with strong ownership, prioritization, attention to detail, critical thinking, teamwork, and follow-through.
• Ability to oversee contractor work, verify quality and completion, and escalate concerns as needed.