Machinery & Mechanical Superintendent

Marathon Petroleum Corporation; Carson (CA); On-site; USD 141,000 - 212,000; Full time

Job summary

Marathon Petroleum Corporation’s Carson CA Refinery is seeking a Machinery & Mechanical Superintendent to lead the routine maintenance of rotating and fixed equipment. You will manage a team of Maintenance Supervisors and craft personnel, drive safety, and optimize equipment reliability in a high-demand refinery environment.

This on-site role requires eight years of experience with rotating equipment, strong leadership, and proficiency with CMMS/SAP.

Qualifications

• High School Diploma or GED required.
• Eight (8) years of experience in maintenance of rotating equipment or rotating equipment engineering experience with refinery or petrochemical equipment.
• Experience in operation, maintenance, and troubleshooting of rotating equipment.
• Understanding of Management of Change requirements and processes.
• Working knowledge of industry standards for maintenance of rotating equipment.
• Proficiency in Microsoft 365: Word, Excel and Outlook.
• Strong communication skills across organizational levels.
• Continuous improvement mindset and willingness to drive innovation.
• Ability to wear PPE and perform tasks in the field, with required drug test and physical.
• Valid driver's license and legal authorization to work in the US without visa sponsorship.
• 5% travel or less.
• Ability to work the onsite schedule: Mon-Thu 10-hour days; after-hours calls and TAR/outages support.

Responsibilities

• Lead a team of supervisors responsible for routine maintenance for rotating and fixed equipment.
• Promote safe work practices and MPC guidelines; ensure environmental notifications are planned and executed.
• Balance manpower to execute the weekly maintenance schedule in the Machine Shop.
• Review KPI metrics with the team to drive continuous improvements and craft productivity.
• Manage the budget with recurring reviews and align with refinery leadership.
• Drive thorough preventive maintenance programs and prioritize Mechanical Integrity PMs.
• Ensure root cause analysis for equipment failures and implement fixes per MPC specs.
• Audit outside shop repairs for OEM and MPC compliance.
• Develop Maintenance Supervisors and craft personnel; support training and upskilling.

Skills

Strong communication skills

Leadership

Continuous improvement mindset

Microsoft 365 proficiency

Project management

Education

Bachelor’s Degree in Mechanical Engineering

High School Diploma or GED

Tools

CMMS software

SAP experience

Job description

Carson CA Refinery

Carson, California

Full time

Machinery & Mechanical Superintendent

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.

Job Summary

The Marathon Los Angeles Refinery, located in Carson, California, is seeking a Machinery & Mechanical Superintendent to manage routine maintenance activities for the refinery’s rotating and fixed equipment and provide leadership for the Machine Shop and Machine Craft. This role reports to the Routine Maintenance, Craft Manager and is responsible for driving improvements in operational availability, optimizing equipment life-cycle costs, and achieving best-in-class equipment reliability. The position leads a team of Maintenance Supervisors responsible for hourly field and shop machinists and oversee the safe, efficient, and reliable execution of routine mechanical maintenance work.

The available onsite schedule for the position is Monday- Thursday - 10 hour days, after hours calls are required and support of TAR/outages as needed. Core Business hours are: 6 AM - 4:30 PM.

Key Responsibilities

• Leads a team of supervisors responsible for execution of routine maintenance work for rotating and fixed equipment while managing resources within the Machine Shop.
• Promotes safely executing work according to Safe Work Practices and Refining Standard Practices, auditing work areas for adherence. Ensures that safety & environmental notifications are planned and executed within MPC guidelines.
• Balances manpower resources efficiently to execute weekly maintenance schedule in the Machine Shop. Leads craft assignments and contract hiring strategy for Routine Maintenance.
• Reviews the KPI metrics with the team to identify opportunities, drive continuous improvement initiatives and maximize MPC craft productivity.
• Manages the budget with recurring budget reviews, ensures scope items are properly allocated toward budget categories, and leads budget discussions with local refinery maintenance leadership team.
• Drives thorough preventative maintenance (PM) programs. Ensures that Mechanical Integrity PM’s are given priority within the scheduled work. Follows audit programs to ensure that all documentation is being filled out correctly.
• Improves reliability by ensuring that repairs focus on root cause elimination. Ensures that rotating equipment failures are properly investigated for root causes and resulting fixes are completed according to MPC specifications. Ensures accurate feedback is given to the Reliability group on repairs made on equipment per Refinery Standard Practices.
• Manages audits for outside shop repairs to ensure they are following OEM and MPC specifications. Audits all outside repair facilities per MPC Refining Standard Practices.
• Leads, coaches, and develops Maintenance Supervisors and Craft Personnel while promoting accountability, technical capability, and continuous professional development.
• Evaluates and supports craft training and upskilling activities.

Education, Experience and Skills

Minimum Qualifications

• Must have a High School Diploma or GED.
• Must have eight (8) year of experience in maintenance of Rotating Equipment or Rotating Equipment Engineering experience with refinery or petrochemical equipment.
• Must have demonstrated experience in the operation, maintenance, and troubleshooting of rotating equipment.
• Must have an understanding of Management of Change requirements and processes.
• Must have working knowledge of applicable industry standards for maintenance of rotating equipment.
• Must be proficient in Microsoft 365: Word, Excel and Outlook.
• Must have strong communication skills with the ability to convey complex system information across all organizational levels.
• Must have a continuous improvement mindset and willingness to drive innovation.
• Must be able to wear appropriate PPE in the refinery (respirator), be able to physically perform all tasks in the field and take hair drug test and physical.
• Must have a valid driver’s license.
• Must be legally authorized to work in the US without the need for future VISA sponsorship.
• Travel Requirement is 5% or less.
• Must be able to work the available onsite schedule - Monday- Thursday - 10 hour days, after hours calls are required and support of TAR/outages as needed. Core Business hours are: 6 AM - 4:30 PM.

Preferred Qualifications

• Prior leadership experience is highly preferred.
• Bachelor’s Degree in a relevant field such as Mechanical Engineering is preferred.
• Experience in managing a unionized workforce is preferred.
• Experience within Marathon supporting area team production is preferred.
• Experience utilizing CMMS software and SAP experience is preferred.

Relocation may be available. https://mympcbenefits.com/relocating/

This job will posted through Oct 31, 2026.

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.

Learn more about Marathon Petroleum’s benefits at https://mympcbenefits.com/

As an energy industry leader, our career opportunities fuel personal and professional growth.

Location

Carson CA Refinery

2101 E Pacific Coast Hwy

Carson, California

$141,300.00 - $212,000.00 Salary

High School (Required)

Full time

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 (https://marathonpetroleum.brandextract.com/staged/marathonpetroleum.com/content/documents/Jobs_/Department_of_Labor_EEOC_.pdf) . If you need a reasonable accommodation for any part of the application process at Marathon Petroleum LP, please contact our Human Resources Department at [e-mail] . 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 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 Corporation

Marathon Petroleum Corporation (MPC) is a leading, integrated, downstream energy company headquartered in Findlay, Ohio. The company operates the nation's largest refining system. MPC's marketing system includes branded locations across the United States, including Marathon brand retail outlets. MPC also owns the general partner and majority limited partner interest in MPLX LP, a midstream company that owns and operates gathering, processing, and fractionation assets, as well as crude oil and light product transportation and logistics infrastructure.