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.

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. As an energy industry leader, our career opportunities fuel personal and professional growth. The Staff Auditor is responsible for executing financial, operational, compliance, and special audits across MPC and MPLX business activities in accordance with the International Standards for the Professional Practice of Internal Auditing and enterprise methodology.

This role supports the full audit lifecycle—including planning, risk assessment, testing, and reporting—to evaluate the effectiveness of controls and identify risks that may impact the control environment, financial integrity, or achievement of business objectives.

• Perform Staff 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.
• Assist in team planning efforts by conducting business unit interviews and preparing walkthroughs. Participate in opening and closing conferences. Keep the audit lead and audit manager informed of audit status and respond accordingly to supervisor review and feedback.
• Start to ensure risks are appropriately identified, ranked, and articulated in the Risk and Control Matrix (RACM), and the audit is appropriately scoped to include relevant risks/controls for testing. Actively participate in advisory reviews for new processes and systems design to provide an independent assessment of project management and control effectiveness.
• Assist with designing and documenting an appropriate audit program and test plan to address all risks in assigned areas. Complete testing and gather sufficient evidence of control execution and using data analytics to select the optimal samples for testing. Validate potential exceptions with audit clients and perform self-review of work.
• Logically and concisely document work / testing performed to support observations and conclusions utilizing established documentation protocol.
• Document test of control results logically and concisely in conformance with department methodology; annotate work papers sufficiently to support Lead and Manager reviews; ensure conclusions reached on control effectiveness are sufficiently supported.
• Start to identify opportunities to leverage data analytics to facilitate more meaningful audit scoping and test procedures (e.g., stratification and selection of a high-risk audit sample, full population testing, etc.); engage with the DT&I Team to retrieve the data needed for analysis and leverage the use of current analytics tools.
• Document complete and accurate observations (on control design and effectiveness), communicate control observations with audit clients prior to the exit meeting and present audit observations in closing conferences.

• Bachelor's degree in Accounting, Audit, related field required.
• Two (2) years of audit, accounting or business experience required.
• Professional Certifications are preferred:
  Certified Public Accounting (CPA), Certified Internal Auditor (CIA), Certified Fraud Examiner (CFE), or other related industry certifications.
• Large company experience may be preferred.

• Up to 15%

San Antonio, Texas

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  The hired candidate will also be eligible for a…