Senior Financial Operations Auditor II

An exciting career awaits you 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.

The Senior Financial Operations Auditor plays a critical role in executing and overseeing financial, operational, compliance, and special audits across Marathon Petroleum Corporation (MPC) and MPLX business units. Reporting directly to the Financial Operations Audit Director, this position ensures audit engagements are conducted in alignment with the International Standards for the Professional Practice of Internal Auditing and the enterprise’s audit methodology.

This role is responsible for completing all phases of the audit lifecycle—from pre‑planning and scoping to execution and reporting—while ensuring alignment with external auditors, SOX 404 teams, and other internal assurance functions. The ideal candidate will demonstrate strong leadership, analytical, and communication skills, and will be adept at managing complex audits, mentoring staff, and driving continuous improvement in audit practices. This role also contributes to strategic advisory reviews and supports the identification of cost recovery and savings opportunities.

• Perform Staff and/or Lead Auditor functions for financial, operational, compliance, and special audits on MPC’s and MPLX’s business activities in accordance with International Standards for the Professional Practice of Internal Auditing and enterprise methodology to identify risks and controls that may have an impact on the integrity of the control environment, integrity of financial information, or achievement of business objectives.
• Ensure alignment of audit activities with those of the external auditors, SOX 404 team, and various Company compliance functions/other assurance providers to ensure proper audit coverage, elimination of duplicate efforts, and the efficiency and effectiveness of audit activities.
• Ensure a well‑designed and appropriate audit program addressing and appropriately identifying key risks, ranking them, and articulating them in the Risk and Control Matrix (RACM); ensure the audit plan is appropriately scoped to include relevant risks/controls for testing.
• Lead opening and closing conferences with clients, to ensure audit focus and priority is understood and accepted by audit clients.
• Ensure audit staff assignments are equitably allocated based on career level and experience, for timely completion. Review planning documents (e.g., work programs, questionnaires, work papers, etc.) completed by audit staff for adherence to plan objectives, completeness and accuracy.
• Coordinate and complete audit pre‑planning and planning efforts prior to the assigned audit staff joining the engagement; facilitate a collaborative and team‑based planning approach. Share knowledge, leading practices and ideas to ensure the success of the project and development of staff. Conduct client interviews to enhance understanding of the business processes and controls being audited.
• Ensure the identified opportunities to leverage data analytics are in‑line with audit scoping and testing procedures.
• Actively communicate control observations prior to the exit meeting in a professional manner with clients. Ensure the exit meeting document and the draft audit report are complete, accurate, and written in conformity with the “5‑C” standards. Monitor and appropriately manage client expectations and work collaboratively with clients on identified issues for acceptable and feasible solutions. Lead post‑engagement issue follow‑up and resolution.
• Provide supervisory support to the assigned audit staff, delivering substantive coaching and development while maintaining a positive work environment. Address all questions from engagement team. Ensure review, evaluation, and delivery of personnel performance following each engagement in accordance with department guidelines and IIA standards.
• Ensure the audit remains on track for completion within the designated time frame and is executed in accordance with IIA and department standards and within…