Senior Quantitative Analyst; Part-Time

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.

MPC has an opportunity for a Senior Quantitative Analyst with a focus on building, enhancing and maintaining analytical data models. This role will help develop and implement analytical models for stress testing of the Supply, Trading, & Origination portfolio and calculating portfolio risk metrics including Value at Risk (VaR), Cash Flow at Risk (CFaR), Earnings at Risk (EaR). The position will also work closely with the Risk Oversight and Performance Measurements Teams in Middle Office identify opportunities and implement enhancements to the existing oversight metrics.

Middle Office is new to MPC and this is an opportunity to help shape the Middle Office relationships and process improvements. This position is open to Findlay, OH, Houston, TX, and San Antonio, TX.
* This position is part of a progression with increasing levels of responsibility, competency, and skill. The title and pay grade of the position will be determined by the experience and qualifications of the selected candidate.

• Develop and maintain quantitative risk models used to measure portfolio exposures, stress scenarios, and downside risk across commodity markets.
• Build analytical frameworks that support enterprise risk measurement, concentration analysis, and forward-looking risk assessments.
• Perform risk analytics and modeling activities, including valuation modeling, exposure simulations, scenario analysis, and sensitivity testing.
• Document methodologies, validate assumptions, and support ongoing model enhancements.
• Support price curve and valuation processes by maintaining analytical models, validating market data inputs, performing curve analysis, and assisting with valuation methodologies for physical and financial commodity positions.
• Deliver actionable risk analytics and decision-support insights by evaluating risk-return tradeoffs, portfolio impacts, and scenario outcomes for trading, origination, optimization, and strategic business initiatives.
• Partner with Commercial, Risk Oversight, Finance, and Data teams to translate business challenges into quantitative solutions.
• Communicate model outputs and analytical findings clearly to both technical and non-technical stakeholders.
• Support model governance and analytical standards by documenting models, performing back-testing and validation activities, and ensuring transparency, accuracy, and consistency in analytical outputs.
• Research and apply advanced quantitative techniques such as Monte Carlo simulation, stochastic modeling, optimization methods, volatility analysis, and machine learning approaches where appropriate to enhance risk measurement capabilities.

• Bachelor's degree required.
• Business, Accounting, Finance, Mathematics, Engineering, Economics or a related discipline preferred.
• Four (4) years of relevant experience required.
• Experience with Power BI, Monte Carlo simulation, and RDW preferred.
• Prior experience in commercial operations, economics, risk management, quantitative analysis, financial analysis, or modeling preferred.

Findlay, Ohio Additional locations:
Job

Requisition :  Location Address: 539 S Main St

Education:

Employee Group:
Full time Employee Subgroup:
Regular

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…