Machinery & Mechanical Supervisor- Refining

Position Summary

Marathon Petroleum Company is seeking a full‑time Machinery & Mechanical Supervisor to lead maintenance execution for outside and inside machinists at the Mandan Refinery. The role is responsible for increasing rotating equipment mechanical availability and reliability through safe, reliable, and compliant execution of maintenance activities. The supervisor serves as the primary interface between Operations, Maintenance, and supporting functions and ensures optimal utilization of refinery outside and inside machinist crafts.

• Lead daily safety meetings with outside and inside machinists and ensure MPC policies and practices are followed.
• Maintain active and visible presence to promote a safe working environment.
• Perform safety audits to support the safe work permitting process and drive improvements across all aspects of the organization.
• Participate in incident investigations and complete Intelex assignments such as Incident Investigations, Recommendations, and MOC tasks.
• Ensure repairs, equipment testing and calibrations meet MPC policies and procedure requirements.
• Work with other departments to develop strategies to improve equipment life cycle cost, repair quality and reliability.
• Assist the Planning and Warehouse department with equipment repair plans and equipment sparing strategies.
• Drive machine shop repair planning and execution.
• Communicate with key stakeholders on status of critical repairs.
• Interface with Engineering to develop repair plans for critical equipment.
• Ensure equipment maintenance records are maintained and act as a quality leader for machinery repairs.
• Properly complete and close out work orders, ensuring repair notes are documented.
• Coordinate with vendors to facilitate off‑site repair of machinery.
• Perform repair shop audits and address vendor quality issues.
• Identify inspection and repair scope for Routine Maintenance, Major Maintenance, and TAR activities.
• Update daily and weekly schedule databases for planning and execution of machinery repairs.
• Develop and maintain machine shop KPIs.
• Lead by example, coach and mentor employees to improve performance and skills.
• Accountable for fair and uniform application of policies and procedures.
• Ensure craft is provided opportunities for advancement and training.
• Act as training quality lead and facilitate sign‑off of competency assessments.
• Stay abreast of developing technologies applicable to rotating equipment monitoring, inspection and repair.

• HS Diploma or GED required.

• Associate’s or Bachelor’s degree in mechanical maintenance or related field preferred.

• Minimum 4 years mechanical experience required; refining or petrochemical industry preferred.

• Valid driver’s license required.

• Experience in laser alignment, field balancing, pump mechanic, steam turbine mechanic, compressor mechanic preferred.

• Working knowledge of mills, lathes, balance machines and relief valve rebuilding preferred.

• Ability to read and understand blueprints, schematic readings and P&IDs.
• Strong initiative, leadership, collaboration, proactive troubleshooting and strategic/critical thinking.
• Effective team communication across multiple disciplines including Engineering, Operations and Maintenance.
• Physical capability to perform essential job functions including wearing required PPE, working at elevated heights, confined space entry and respirator usage.
• Proficiency in Microsoft Word, Excel and Outlook; experience with SAP preferred.

Monday – Thursday 4/10 schedule. Position will support a rotating on‑call calendar and work additional or off hours to support a 24‑hour production‑centered operation. Will also support the needs of the Dickinson Renewable Diesel Facility on a special project, outage/turnaround, temporary assignment or as needed.

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 need a reasonable accommodation for any part of the application process, please contact our Human Resources Department at talentacqu