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Location Name: Denver, CO or San Antonio, TX or Findlay, OH 
Job/Requisition ID: 64869

Education Level: Bachelor's Required 
Relevant Experience Level: Mid Career (4-10 Years) 

Pay Range: $73,200 - $126,300 + bonus
Employee Group: Regular - Full Time
Employee Subgroup: Salaried Exempt



The IT Infrastructure Internal Auditor is an important member of the Internal Audit team and is responsible for performing assigned audit engagement tasks evaluating and testing the MPC and MPLX information system (IS) control environment primarily within computer applications, technology infrastructure, cybersecurity and systems development disciplines.

This position will focus on technology infrastructure and on application related controls. Technology infrastructure can include Windows, UNIX, VMWare ESX, SQL, Oracle, SAP, business and process control networks. The application systems may include financial Sarbanes-Oxley (SOX) control testing and regulatory compliance reviews for MPC and MPLX. The Internal Audit group operates under a cross functional multi-geographical team concept with personnel assigned to projects based on business priority and individual availability.


The position performs assigned audit engagement tasks to complete the internal audit organizations Annual Audit Plan, including appraising business process and information system functions; supports processes and systems to ensure confidentiality, integrity and availability. This position is a part of a job family with multiple levels. The successful candidate will be placed at a level commensurate with experience and qualifications.


Performs assigned audit duties as both an individual contributor and work product reviewer in accordance with accepted standards. Audit teams are comprised of a Lead Auditor and Staff Auditors with specific responsibilities varying by the assigned role on each audit as noted below.

Staff Auditor

• Conducts interviews with auditees to ensure a thorough understanding of the business process and controls gaining an understanding of the IT/IS operations, assesses the internal computing controls, and performs tests to ensure the controls are working as intended.
• Evaluates the internal controls within existing computer applications and technology infrastructure and performs Advisory Reviews on major system upgrade projects prior to implementation management and tracking system.
• Meets with client management to discuss concerns and works with management in developing practical action plans to improve controls.
• Determines if additional risks, not identified on the Risk and Control Matrix (RACM) or similar document, should be reviewed with the Lead Auditor for potential inclusion in the audit scope
• Designs and documents an appropriate test plan to address all risks assigned by the Lead Auditor
• Uses data analytics (ACL, IDEA, Excel, etc.) to select the optimal samples for testing; documents all testing results logically, concisely, and with appropriate levels of coaching to support conclusions reached on control effectiveness.

Lead Auditor

• Schedules and completes business unit interviews to ensure all risks are appropriately identified, risk ranked, and articulated on the RACM or similar document
• Ensures identified high and medium risk business processes are added to the audit plan for testing and that those tests are equitably allocated to the audit staff for timely completion
• Ensures the audit remains on track for completion within the designated time frame and is executed in accordance with IIA and departmental standards
• Acts as a mentor to the less experienced auditors on the team
• Ensures a positive work environment is maintained within the team
• Keeps the auditee and the Internal Audit Manager updated on the audit status
• Ensures the exit meeting documentation is complete and accurate
• Ensures draft audit reports submitted for the Internal Audit Manager's review are complete, accurate and written in conformity with departmental standards.


• Bachelor's degree required; Preferably in Computer Science or Management Information Systems.
• 4+ years of IT support and or audit experience preferred
• CPA or CIA preferred, but not required
• Highly motivated and team-oriented
• Excellent organizational skills
• Detail-oriented and strong analytical skills
• Excellent written and verbal communication skills
• Proficient in the use of Microsoft Office products
• Flexible to work overtime during peak periods as needed
• Ability to travel up to 10%


*This position can sit in either Denver, Colorado; Findlay, Ohio or San Antonio, Texas*

** For more information on our benefits please visit: **


About Marathon Petroleum Corporation


Marathon Petroleum Corporation (MPC) is a leading, integrated, downstream energy company headquartered in Findlay, Ohio. The company operates the nation's largest refining system. MPC's marketing system includes branded locations across the United States, including Marathon brand retail outlets. MPC also owns the general partner and majority limited partner interest in MPLX LP, a midstream company that owns and operates gathering, processing, and fractionation assets, as well as crude oil and light product transportation and logistics infrastructure.

Travel Expected: Up to 10%


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, 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 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.

Equal Opportunity Employer: Veteran / Disability

Marathon Petroleum Company LP participates in the E-Verify program in some states in which it operates (including AL, AZ, GA, MS, NC, SC, TN, and UT). For more information before proceeding, please see details in English or Spanish. Right to Work Statement English or Spanish.

To view benefit information for Marathon Petroleum Corporation please visit

Nearest Major Market: Lima
Nearest Secondary Market: Findlay

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