Planning & Optimization Engineer III​/Senior Planning & Optimization Engineer

About the Company

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.

This Planning & Optimization Engineer position is an individual contributor role within the Standardization & Governance team of the Value Chain Optimization (VCO) organization. The role is critical in defining and advancing next‑generation optimization model frameworks, enabling consistency, comparability, and scalability across assets and regions. The engineer partners closely with Operations Research and planning & scheduling organizations to align model structures, assumptions, and configurations with approved technical standards.

• Defines, maintains, and evolves standard modeling frameworks, structures, and requirements for enterprise planning and optimization tools (e.g., Aspen PIMS, Aspen APS, Aspen PSCP, AIMMS), in partnership with the Operations Research team.
• Works closely with planning, scheduling, and optimization teams to align model structures, assumptions, and configurations with approved standards.
• Leads efforts to harmonize model logic, constraints, and inputs across regions and assets to enable consistency, comparability, and scalability.
• Provides technical guidance and hands‑on support during deployment and configuration of standardized models at regional and asset levels.
• Ensures model configurations comply with approved technical standards, coordinating with governance and standards coordination roles for formal change‑control routing and documentation.
• Participates in model exception and deviation reviews, providing technical analysis and recommendations for resolution or escalation through governance channels.
• Documents model assumptions, configurations, constraints, and decision logic to support transparency, auditability, and repeatability.
• Identifies opportunities to improve model robustness, maintainability, and performance within established standardization frameworks, escalating ideas that require non‑standard approaches to the innovation team.

• Bachelor’s degree in Chemical Engineering, Industrial Engineering, Operations Research, or a related field.

• Four (4) or more years of experience working with planning and optimization models in tools such as Aspen PIMS, Aspen APS, Aspen PSCP, AIMMS, or similar platforms.

• Optimization Modeling & Platforms – Deep technical expertise in enterprise planning and optimization tools and their underlying modeling constructs.
• Standards & Change‑Control Discipline – Strong ability to apply and maintain standards, version control, and change‑control rigor in technical environments.
• Systems & Model Integration – Ability to understand end‑to‑end model interdependencies and ensure consistency across complex systems.
• Technical Collaboration – Effective at working with planners, schedulers, optimization teams, and Operations Research partners to resolve model issues and align on standards.

Findlay, Ohio

Anacortes, Washington, Canton, Ohio, Carson, California, Catlettsburg, Kentucky, Detroit, Michigan, Dickinson, North Dakota, El Paso, 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

Pay Min/Max: $ - $ Salary
Grade: 12 - 13

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, . 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 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.