Full-time Posted June 23, 2026
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Job Description

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.

WHY JOIN US: Join Marathon’s Galveston Bay Refinery and play a critical leadership role in protecting people, operations, and assets. This position offers a seasoned leader the opportunity to shape security strategy at one of the nation’s key energy facilities and make a visible difference in a dynamic industrial environment. This role offers meaningful responsibility, leadership growth, and the chance to help safeguard essential operations.

POSITION SUMMARY

The Marathon Galveston Bay Refinery (GBR) has an opening for a Security Manager to lead the Security Department. The individual will be responsible for supervising union, salaried and contract security personnel, overseeing site-wide security programs and plans, regulatory compliance, invest...

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