Senior Planning & Optimization Engineer

Position Summary

The Value Chain Optimization (VCO) team has an opening for a Cross‑Regional Planning & Optimization Engineer. The Cross‑Regional Planning & Optimization Engineer plays a critical role in enabling enterprise‑wide value optimization by aligning commercial strategy, operational constraints, and market dynamics across multiple regions. Reporting to the Cross Regional Optimization Director, this role operates at the intersection of planning, logistics, and commercial teams to drive consistent, economically optimized decision‑making across the value chain.

This individual serves as a highly collaborative and energetic integrator, partnering closely with logistics and commercial stakeholders. They facilitate cross‑regional alignment, communicate complex concepts in a clear and actionable way, and influence outcomes across diverse stakeholder groups without direct authority. Leveraging strong analytical skills and hands‑on experience with linear programming models, including PIMS, the Cross‑Regional Planning & Optimization Engineer evaluates scenarios, validates plans, and identifies opportunities to improve value capture across the system.

They translate optimization outputs into actionable insights while ensuring consistency in how models are applied and embedded into planning and execution processes.

• Manages the commercial aspects of cross‑regional operations, including cross‑regional feedstock selection, product and intermediate placement, supply chain optimization, and market analysis.
• Demonstrates an advanced understanding of refinery operations, economics, and market dynamics cross‑regionally.
• Mentors junior engineers in planning and optimization strategies.
• Leads collaboration meetings within the value chain to discuss cross‑regional economic drivers.
• Understands how regional plans for multiple refineries are developed, optimized, and executed using linear programming simulation models.
• Accurately changes cross‑regional modeling constraints to match real‑life operating constraints.
• Leads end‑to‑end evaluation of cross‑regional buy‑or‑make cases, from data gathering to final recommendation.
• Develops sophisticated economic models and sensitivity analyses to assess risk and uncertainty.
• Collaborates with trading to align strategies and optimize outcomes.
• Interfaces with regional leadership to communicate recommendations and gain alignment.
• Manages project support cases independently.
• Possesses a deep understanding of refinery processes and commercial implications.
• Capable of analyzing complex data, identifying trends, and proposing solutions autonomously.

• Bachelor’s degree in Engineering required. Chemical Engineering preferred.
• Four (4) years of relevant experience required. Technical Services or Economics & Planning experience preferred.
• Aspen PIMS linear programming user background preferred.

• Action Planning
• Adaptability
• Business Acumen
• Communication Continuous Learning
• Critical Thinking
• Decision Making
• Innovation
• Problem Solving
• Results Driven
• Teamwork

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 discretionary company‑sponsored annual bonus program.

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, reproductive health decision‑making, 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, please contact our Human Resources Department. If you need a reasonable accommodation for any part of the application process at Marathon Petroleum LP, please contact our Human Resources Department at talentacqu

Findlay, Ohio. Additional locations:
Anacortes, Washington;
Canton, Ohio;
Carson, California;
Catlettsburg, Kentucky;
Detroit, Michigan;
Dickinson, North Dakota;
ElPalo, Texas;
Garyville, Louisiana;
Houston, Texas;
Kenai, Alaska;
Mandan, North Dakota;
Martinez, California;
Robinson, Illinois;
Salt Lake City , Utah;
San Antonio, Texas;
St Paul Park , Minnesota;
Texas City, Texas;
Wilmington, California.