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.

The Value Chain Optimization (VCO) team has an opening for a Planning & Optimization Engineer supporting the Garyville Louisiana Refinery. This role reports through the VCO South Region to the Refining Economics & Planning Manager.

This individual will develop, optimize, and execute regional operating plans using linear programming (LP) models, manage local refinery forecasting and deliverables, and partner across the value chain to align economic strategies. The role leads cross‑functional collaboration with Refining, Trading, Supply Chain, and Marketing to evaluate buy‑or‑make decisions, assess risk through economic modeling and sensitivity analysis, and drive optimal outcomes.

• Manages the commercial aspects of regional refinery operations, including feedstock selection, product and intermediate placement, supply chain optimization, and market analysis.

• Demonstrates an advanced understanding of refinery operations, economics, and market dynamics for multiple refineries. Able to mentor junior engineers in planning and optimization strategies.

• Leads collaboration meetings within the value chain to discuss both local and regional economic drivers.

• Understands how regional plans for multiple refineries are developed, optimized, and executed for multiple refineries using linear programming simulation models. Modifies production plans as needed to adjust to demand/margin changes. Accurately changes modeling constraints to match real life refinery operating constraints. Manages local refinery forecasting independently.

• Leads end-to-end evaluation of 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 refinery leadership to communicate recommendations and gain alignment.

• Leads the development and execution of backcast models, considering factors such as production efficiency, cost drivers, and market conditions. Conducts in-depth root cause analysis to identify factors influencing historical performance deviations. Collaborates with operational teams to implement corrective actions and continuous improvement initiatives.

• 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.

• Understands local refinery deliverables and can effectively manage independently. Is trained on some refinery scheduling desks, uses APS to coordinate local refinery material balances and optimizes to improve refinery operating plans. Actively pushing execution of operating strategies to ensure compliance with monthly operating plans and changing economics.

• Bachelor’s degree in Engineering required.

• Four (4) years of relevant experience required. Technical Services or Economics & Planning experience preferred.

• Action Planning

• Adaptability

• Business Acumen

• Communication

• Continuous Learning

• Critical Thinking

• Decision Making

• Innovation

• Problem Solving

• Results Driven

• Teamwork

As an energy industry leader, our career opportunities fuel personal and professional growth.

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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, 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 talentacquisition@marathonpetroleum.com. 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. 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 https://mympcbenefits.com.The hired candidate will also be eligible for a discretionary company-sponsored annual bonus program.

Equal Opportunity Employer: Veteran / Disability

We will consider all qualified Applicants for employment, including those with arrest or conviction records, in a manner consistent with the requirements of applicable state and local laws. In reviewing criminal history in connection with a conditional offer of employment, Marathon will consider the key responsibilities of the role.