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Location Name: San Antonio, TX 
Job/Requisition ID: [[id]]
Location Address: 19100 Ridgewood Park, San Antonio, TX, United States (US), 78259
Education Level: Bachelor's Desired 
Relevant Experience Level: Senior (11+ Years) 
Employee Group: Regular - Full Time
Employee Subgroup: Salaried Exempt




The Cybersecurity Principal is a vital role that helps to provide assurance for Marathon’s critical assets and securely enables business functions.  This role supports the business as a cybersecurity subject matter expert in a variety of ongoing projects, conducts risk assessments, administration of gateway and endpoint security solutions, and liaises between subject matter experts for each applicable technology and internal clients.  This role reports to Cybersecurity Operations leadership and works closely with senior Cybersecurity staff and MPC IT technical and business personnel across the company. 


Key Responsibilities:

  • Facilitates and prioritizes assigned work including but not limited to validating requests against standards and established operational procedures, facilitating changes to security appliances and solutions, risk assessments, waivers, ensuring authenticity and authorization of requests, and coordinating required changes with responsible subject matter experts
  • Works with Cybersecurity Architecture team to insure architectural and enterprise requirements are met and maintained.
  • Security tool administration and management
  • Cybersecurity lead for projects to deliver security solutions based on defined architecture and requirements.
  • Establishes measurements and metrics to enable development of Key Performance Indicators (KPIs) and other tools to gauge the success of security administration and operations
  • Collects analytics, aggregating into useful metrics and reporting to cybersecurity operations management on a periodic basis
  • Develops standard reports and dashboards to present key operational information
  • Monitors security administration and operations functions for problems in quality of the delivery, operational constraints, or other issues that may negatively impact service quality; gathers supporting information and communicates to management (along with recommendations for remediation)
  • Participates in incident response activities and various cybersecurity initiatives as needed
  • Must be willing to travel as needed


Education & Expereince:


  • Bachelor’s degree in technical field (Computer Science, Information Systems, Information Systems Security, Electrical Engineering, Physical Sciences) or equivalent background and experience
  • Thorough understanding of multiple domains of Information Technology, including network infrastructure, systems administration, relational database administration, and application development
  • Experience with object-oriented programming languages
  • Well versed in cybersecurity principles, theory, and practical application in an enterprise setting
  • Ability to apply project management techniques to successfully organize tasks and initiatives
  • Advanced troubleshooting, solution design and implementation skills
  • Outstanding organizational and oral and written communications skills
  • Demonstrated ability to quickly understand new technologies and concepts
  • Ability to work in a matrix organization
  • Ability to provide detailed reporting
  • Experience with hybrid cloud architectures a plus



  • The successful Cybersecurity Principal:

    Maintains a positive, customer-centric attitude

  • Has strong troubleshooting and organization skills
  • Experience with IP networks and network troubleshooting
  • Experience with system administration of cybersecurity solutions
  • Self-starter willing to take on new challenges from discovery to deployment with minimum direct supervision
  • Can build and maintain excellent relationships with internal customers
  • Has strong presentation and communication skills
  • Demonstrates leadership attributes

About Marathon Petroleum Corporation



Marathon Petroleum Corporation (NYSE: MPC) is a large-scale geographically-diversified and highly -integrated refining, marketing and midstream company. MPC is the nation's largest refiner, with a crude oil refining capacity of more than 3 million barrels per calendar day in its 16-refinery system. MPC's high-quality, nationwide retail and marketing business includes approximately 3,900 company-owned and -operated stores and 7,800 branded locations. MPC owns the general partners of MPLX LP and Andeavor Logistics LP, two strong, customer-focused midstream master limited partnerships.


Job Function: InfTech
Travel Expected: Up to 25%



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.

Nearest Major Market: San Antonio

Job Segment: Engineer, Electrical, Information Systems, Database, Computer Science, Engineering, Technology

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