Mass Balance Energy Optimization Engineer Jobs (NOW HIRING)

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.

• 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 handson 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 changecontrol 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 nonstandard 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 & ChangeControl Discipline - Strong ability to apply and maintain standards, version control, and changecontrol rigor in technical environments.

• Systems & Model Integration - Ability to understand endtoend 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.

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 atmympcbenefits.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.