Marathon Petroleum

Lead Optimization Modeling Specialist

Marathon Petroleum$110K — $130K *
Energy & Utilities
8 - 10 years of experience
Job Overview by Ladders

Qualifications

  • Bachelor's Degree required; Engineering Degree preferred
  • Minimum eight years of refinery experience
  • At least two years of Process Unit/Technical Service Engineering experience
  • Proficient in PIMS and Excel
  • Experience with PI strongly preferred
  • Familiarity with VBA/KBC Petro-SIM helpful
  • Experience modifying PIMS sub-models preferred
  • Higher consideration for candidates with PPIMS, MPIMS, XPIMS, and AUP experience

Responsibilities

  • Supports refinery planning models including PIMS and multi-refinery models
  • Maintains and troubleshoots LP models, providing user assistance as needed
  • Implements model improvements with planning team based on operational changes
  • Monitors and compares daily LP predictions to actual unit performance
  • Assists with LP backcasts for yield analysis and model refinement
  • Collaborates with refinery engineers to validate data and update submodels
  • Updates crude assays in planning models based on latest guidance

Benefits

  • Access to health, vision, and dental insurance
  • Paid time off
  • 401k matching program
  • Paid parental leave
  • Educational reimbursement
  • Eligible for a discretionary annual bonus program
Full Job Description
POSITION SUMMARY:

The Operations Research (OR) group within the Refining organization enhances and supports the planning, optimization, simulation, scheduling and blending software applications used by the refineries, commercial and other organizations within the Company - not only to run and optimize the day-to-day business, but also to develop the Company's long-term asset investment strategy.

This successful candidate is responsible for developing and supporting tools to optimize the refineries and value / supply chain. The primary focus is the economic optimization tools (PIMS) for the refineries but can also include secondary distribution networks outside of the refinery fence line. Opportunities will also exist for consulting with other business units within MPC to aid in the development of solutions to drive profitability.

Internal/External candidates can be located in Findlay, San Antonio or any refinery location.

Travel for this position is less than 10%

This position belongs to a family of jobs with increasing responsibility, competency and skill level. Actual position title and pay grade will be based on the selected candidate's experience and qualifications.

KEY RESPONSIBILITIES:
  • Supports refinery planning models including single-refinery (PIMS), multi-period (PPIMS), and may assist with multi-refinery models (MPIMS, XPIMS).
  • Maintains and troubleshoots LP models for assigned refinery(ies), providing user assistance and informal training as needed.
  • Collaborates with the planning team to identify, test, and implement model improvements driven by operational changes, projects, or regulatory updates.
  • Monitors LP Benchmarking by comparing daily LP predictions to actual unit performance (UPM); reviews results with planners to enhance model accuracy.
  • Assists with LP backcasts to compare predicted vs. actual yield accounting data; supports analysis and recommendations for model refinement.
  • Works with refinery engineers to gather and validate data; coordinates with simulation and kinetics teams to update submodels and integrate changes.
  • Updates crude assays in planning models per latest guidance; investigates crude value shifts resulting from assay changes.
  • May support migration of PIMS models to Aspen Unified Planning (AUP), including testing, user support, and vendor feedback.


MINIMUM QUALIFICATIONS:
  • Bachelor's Degree required. Engineering Degree preferred.
  • Eight (8) years or more of refinery experience including a minimum of two (2) years or more of Process Unit / Technical Service Engineering experience is required.
  • Two years of optimization experience utilizing PIMS is preferred. This may include utilization of PIMS for developing refinery operating plans, evaluating crude economics, performing back casts, identifying and quantifying economics of projects and other opportunities, and turnaround planning.
  • Proficiency with PIMS and Excel required.
  • Proficiency with PI strongly preferred.
  • Experience with VBA and/or KBC Petro-SIM would be helpful.
  • Higher consideration will be given to candidates with experience in modifying PIMS sub-model structures.
  • Higher consideration will be given to candidates with PPIMS, MPIMS, and/or XPIMS, and PSCP (DPO) experience.
  • Higher consideration will be given to candidates with Aspen Unified Planning (AUP) experience.


Must be authorized to work in the U.S. on a full-time indefinite basis without the need for employment visa sponsorship now or in the future.

Location:
Texas City, Texas

Additional locations:

Job Requisition ID:


Location Address:
2401 5th Ave S

Education:
Bachelors (Required)

Employee Group:
Full time

Employee Subgroup:
Regular

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 [email protected]. 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.

About Marathon Petroleum

Marathon Petroleum Corporation (MPC) is in the business of creating value for their shareholders through the quality products and services they provide for their customers. They strongly believe how they conduct their business is just as integral to their bottom line. As a result, they strive to always act responsibly with those who work for them, with those business partners who work with them, and in every community where they operate.

Marathon Petroleum Careers

Joining Marathon Petroleum means becoming part of a leading global team in the energy sector, where job opportunities abound for those eager to advance their careers in a dynamic and inclusive environment. As one of the largest refining companies in the world, Marathon Petroleum is at the forefront of transforming the energy landscape.

Work You’ll Do

At Marathon Petroleum, your work will directly contribute to the company's ongoing success and leadership in the industry. You will collaborate with skilled professionals dedicated to innovation and excellence in all aspects of the energy sector. Our team's combined expertise fuels Marathon Petroleum's commitment to sustainable energy solutions and operational excellence.

Innovate and Lead

Step into a role that challenges and excites with Marathon Petroleum. Here, innovation isn't just a buzzword—it's a call to action. Our leadership is committed to fostering a culture where new ideas lead to groundbreaking solutions. This commitment to innovation and leadership is woven into every aspect of our business, from refining operations to environmental strategies.

Grow and Develop

Marathon Petroleum is deeply invested in the professional growth and development of its employees. We offer a variety of training and development programs, including leadership development, diversity training, and technical skills enhancement. Whether you're starting as an intern or a seasoned professional, you’ll find a pathway to personal and professional growth with us.

Be Part of Our Team

Our team at Marathon Petroleum is driven by a shared mission to excel. By joining us, you'll work alongside dedicated professionals who are passionate about their roles and the impact they have on the company and the industry. Our collaborative environment supports career advancement and fosters a culture of professional enrichment.

Diversity and Inclusion

At Marathon Petroleum, we believe diversity drives innovation. Our inclusive culture welcomes all perspectives and encourages a diverse workforce that reflects the communities we serve. We are committed to providing equal employment opportunities, ensuring that all team members have the resources they need to succeed.

Explore Job Opportunities

Marathon Petroleum offers a range of job opportunities across various functions of the business. From internships that provide real-world experience to full-time positions in engineering, business, and more, there’s a place for your skills and passions here.

Future-Proof Your Career

With Marathon Petroleum, you are not just finding a job; you are building a career equipped with the tools for success in the ever-evolving energy sector. Our robust benefits package supports your health, well-being, and financial security, allowing you to focus on professional development and career advancement.

Stay Connected

Join Our Team Discover the exciting career opportunities waiting for you at Marathon Petroleum. Search open positions that match your skills and interests. We are always on the lookout for curious, creative, and driven team members.

Keep Up to Date

Stay informed with the latest company news, industry insights, and career tips—all from the people who work here. Marathon Petroleum is more than a company—it's a community where you can grow, innovate, and lead.

Job Alert Emails

Customize your experience by subscribing to receive job alerts and insider information tailored to your preferences. Explore the rewarding opportunities that await at Marathon Petroleum.

Join Marathon Petroleum—where careers fuel futures.

Learn more about Marathon Petroleum
Size
17,700 employees
Market Cap
$53 billion
Industry
Net Income
-$9.8 billion
Founded
2005
5 Year Trend
+13.8%
Revenue
$74.9 billion
NASDAQ

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