Marathon Petroleum

Lead Designer

Marathon Petroleum$80K — $121K *
Energy & Utilities
8 - 10 years of experience
Job Overview by Ladders

Qualifications

  • High school diploma or GED required prior to start date.
  • At least 8 years of design experience, with 4 years focused on Electrical and Instrumentation in a refinery or petro-chemical environment.
  • Proficient in Microsoft 365 applications: Word, Excel, and Outlook.
  • Experienced with AutoCAD and Raster Design software.
  • Capable of performing field tasks and physically demanding duties; able to take drug tests and physical.
  • Valid driver's license and legal authorization to work in the US without sponsorship required.

Responsibilities

  • Develop cost-effective project designs by understanding project needs and recommending best routing options.
  • Create bid and construction packages using industry knowledge and CAD software.
  • Develop detailed bills of materials following company standards and best practices.
  • Acquire necessary data by communicating with contacts and conducting field visits.
  • Perform field visits to verify measurements and terminate points for instrumentation.
  • Manage multiple projects and ensure adherence to schedules and milestones.
  • Develop detailed instrumentation and installation drawings using CAD software.

Benefits

  • Comprehensive benefits package as outlined on Marathon Petroleum's benefits site.
  • Opportunities for growth within a family of jobs with increasing responsibility and skill level.
Full Job Description
Lead Designer - Electrical and Instrumentation (E/I)

Job Summary

Marathon Petroleum Company LP (MPC) Los Angeles Refinery has an opening for a Lead Designer(E/I) in Carson/Wilmington, California. The Lead Designer (E/I) is responsible for developing cost-effective project designs by understanding project needs and then recommending best discipline specific routing which incorporates factors such as construction practices, regulatory factors, ergonomics, materials limitations and safety.

Must be able to work onsite for one of the available schedules for the position which are either 9/80 or 5/40 , must be able to work after hours as needed and support TAR once year. Core Business hours are: 7:00 AM - 3 PM.

Key Responsibilities

  • Develops cost-effective project designs by understanding project needs and then recommending best discipline specific routing which incorporates factors such as construction practices, regulatory factors, ergonomics, materials limitations and safety.
  • Creates concise and coherent bid / construction packages by applying knowledge of industry and computer-aided design (CAD) software along with other designing / drafting equipment per their discipline (SI, Plant 3D, etc.).
  • Develops detailed bills of materials utilizing current company standards and industry best practices in order to help with creation of cost estimates.
  • Acquires data and information needed for a successful design by communicating with internal and external contacts, visiting project/field sites, utilizing point cloud data as needed and reviewing historical drawings.
  • Performs all necessary field visits including coordination with craftsmen to assist with verifying instrument termination points or verifying electrical spares per drawings as well as obtaining precise measurements and verifying dimensions and routings.
  • Manages multiple programs, projects and assignments in a timely, safe and cost-effective manner. Ensures that project schedules and milestones are achieved and develops strategies for fast tracking areas of concern.
  • Manages multiple programs, projects and assignments in a timely, safe and cost-effective manner. Ensures that project schedules and milestones are achieved and develops strategies for fast tracking areas of concern.
  • Develops and modifies instrumentation installation, wiring, termination and construction drawings utilizing AutoCAD, Raster Design and SmartPlant Instrumentation (SPI) to produce accurate engineering and construction documentation.
  • Identifies and develops instrument cable routing, termination, marshalling and DCS I/O connections from field instrumentation to the designated control system point in accordance with refinery standards.
  • Develops instrumentation installation details, support details, mounting arrangements and material requirements to ensure safe, constructible and maintainable field installations.
  • Prepares complete instrumentation construction packages from initial concept through Issued for Construction (IFC) and final As-Built documentation, incorporating design reviews, construction revisions and field redlines.


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 8 years of design experience supporting an Engineering department with at least 4 of those years of experience focused on Electrical and Instrumentation in a refinery, petro-chemical or other related industry.
  • Must be proficient in Microsoft 365: Word, Excel and Outlook.
  • Must be proficient with AutoCAD and Raster Design.
  • Must be able to wear appropriate PPE, 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 onsite for one of the available schedules for the position which are either 9/80 or 5/40 , must be able to work after hours as needed and support TAR once year. Core Business hours are: 7:00 AM - 3 PM.


Preferred Qualifications
  • SmartPlant Instrumentation (SI) is preferred.


This job will posted through Friday, Aug 28, 2026.

Relocation Information

Relocation is not available.

Benefits Information

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

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.

Location:
Carson, California

Job Requisition ID:
00023457

Pay Min/Max:
$80,800.00 - $121,200.00 Salary

Grade:
N7

Location Address:
2350 E 223rd St

Additional locations:

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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