Marathon Petroleum

Electrical Maintenance Supervisor

Marathon Petroleum$150K — $185K *
Energy & Utilities
5 - 7 years of experience
Job Overview by Ladders

Qualifications

  • High School Diploma or GED required.
  • 5+ years in electrical maintenance in heavy industry, preferably refinery or petro-chemical.
  • Proficient in Microsoft Word, Excel, and Outlook.
  • Able to wear PPE and perform physical tasks in a refinery environment.
  • Valid driver's license and authorized to work in the US without sponsorship.

Responsibilities

  • Supervise union electrical maintenance craft and ensure execution of maintenance work.
  • Promote reliability-centered maintenance and assist with troubleshooting.
  • Maintain active field presence to foster safety and compliance with practices.
  • Coordinate planning to ensure proper job package development and material compliance.
  • Participate in maintenance cost control and collaborate on repair strategies through the leadership team.
  • Maintain accurate records for designated areas and operations.
  • Provide daily updates to Maintenance leadership and address any issues.

Benefits

  • Relocation assistance may be available.
  • On-call duty only three weeks a year and annual TAR support.
  • Structured training programs for employee development.
  • Opportunity to work in a stable and supportive team environment.
Full Job Description
Electrical Maintenance Supervisor

Job Summary

The Marathon Los Angeles Refinery located in Wilmington/Carson, California is seeking an experienced Electrical Maintenance Supervisor to supervise our electrical maintenance craft, union represented employees. The role will execute preventive and corrective maintenance work safely and effectively in an environmentally compliant manner following all policies and procedures. The Electrical Maintenance Supervisor will facilitate the optimal utilization of plant maintenance resources to support the operation of the facility and ensure the availability of the electrical systems and infrastructure.

The hours of the onsite position are Monday- Thursday - 6:00 AM - 4:30 PM, on-call duty three weeks out of the year and TAR support once a year.

Key Responsibilities
  • Supervise electrical maintenance craft, union represented employees. Executes preventive and corrective maintenance work safely and effectively in an environmentally compliant manner following all policies and procedures. Facilitates the optimal utilization of plant maintenance resources to support the operation of the facility and ensure the availability of the electrical systems and infrastructure.
  • Ensure team understands work scope and performance expectations. Promote proactive reliability-centered maintenance (RCM) focus. Assist with troubleshooting. Ensure work orders are satisfactorily completed and properly closed out. Communicate daily activities related to manpower, accomplishments and problem areas to management. Ensure assigned craft personnel are adequately trained for their job assignment. Identify training needs and participate in development of training programs for craft skill pool.
  • Maintain visible and active field presence to promote safe working environment and ensure adherence to safe work practices, Participate in audits and near-miss/incident investigations. Follow-up on safety issues until closure. Active member of the safety committee.
  • Coordinate with planning and scheduling to ensure appropriateness of job packages. Ensure materials used comply with current engineering standards. Identifies and resolves delays that would prevent schedule attainment.
  • Participate in maintenance cost control including challenging need for discretionary work. Participating member of Maintenance leadership team. Work collaboratively with other supervisors, planning & scheduling and reliability teams to develop repair strategies and maintain reliability of refinery plant mechanical equipment in support of continuous operations.
  • Maintain current, accurate and complete records for assigned area(s).
  • Supervise and lead work group. Accountable for fair and uniform application of policies and procedures.
  • Responsible for meeting all that is applicable to the role of our routine maintenance supervisors in RSP-1400.
  • Provide daily updates to Maintenance leadership and Operations.


Education, Experience and Skills
Minimum Qualifications
  • Must have a High School Diploma or GED. (Education must be obtained/completed prior to start date.)
  • Must have at least 5 years of electrical maintenance experience as a craftsperson, engineer or supervisor in a refinery, petro-chemical or other related heavy industry.
  • Must be proficient in Microsoft: Word, Excel and Outlook.
  • Must be able to wear appropriate PPE in the refinery (respirator), be able to physically perform all tasks in the field and must be able to 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 onsite Monday- Thursday - 6:00 AM - 4:30 PM, on-call duty three weeks out of the year and TAR support once a year.
  • Must understand this job is in production-centered support of a 24/7 operation and may require additional time and resources during off hours.

Preferred Qualifications
  • Previous leadership experience is preferred.
  • Previous SAP experience is preferred.


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

Reasonable Pay Range which includes Geographic Difference for living in California: 150,000 - 185,000

This job will posted through August 20, 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/

Location:
Wilmington, California

Job Requisition ID:


Pay Min/Max:
$122,900.00 - $184,300.00 Salary

Grade:
12

Location Address:
2101 E Pacific Coast Hwy

Additional locations:
Carson, California

Education:
High School (Required)

Employee Group:
Full time

Employee Subgroup:
Regular

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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