• Intern/Co-op - Human Resources (Summer 2026)

    Marathon Petroleum Corporation (Los Angeles, CA)
    …Hourly Grade: HRLY1 Location Address: 539 S Main St Additional locations: Galveston Bay Refinery , Garyville LA Refinery , Los Angeles CA Refinery , San Antonio ... company that owns and operates gathering, processing, and fractionation assets, as well as crude oil and light product transportation and logistics infrastructure. more
    Marathon Petroleum Corporation (08/29/25)
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  • Refining Engineer- Projects

    Marathon Petroleum Corporation (Martinez, CA)
    …of project management and the types of equipment that are typical to a refinery or petrochemical plant. This person reports to the Martinez Engineering Manager. The ... + Must have at least 3 years post degree Engineering experience in a refinery , petro-chemical or other related heavy industry. + Must be proficient in Microsoft:… more
    Marathon Petroleum Corporation (08/22/25)
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  • Fixed Equipment Reliability Engineer

    Marathon Petroleum Corporation (Martinez, CA)
    …+ ​Must have 3 years of experience as a Mechanical Engineer in a refinery , petro-chemical or other related heavy industry. + ​Must be proficient in Microsoft: Excel, ... Must be able to wear appropriate PPE in the refinery and be able to physically perform all tasks...and operates gathering, processing, and fractionation assets, as well as crude oil and light product transportation and logistics… more
    Marathon Petroleum Corporation (08/15/25)
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  • Refining Engineer 1 - Mechanical Engineer - Intern…

    Marathon Petroleum Corporation (Wilmington, CA)
    …in the technical development and project management of all types of refinery projects, organizing and coordinating projects within a multi-discipline team from ... and piping modifications. Reliability Engineer: Reliability engineers support the Refinery 's maintenance department through design and development of equipment… more
    Marathon Petroleum Corporation (06/17/25)
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  • Corporate Refining TAR Specialist

    Marathon Petroleum Corporation (Carson, CA)
    …Corporate Turnaround (TAR) Specialist supports TAR planning and execution at various MPC refinery locations in alignment with the MPC 10-year TAR plan. This position ... milestones. + Provides regular TAR planning progress updates to the Refinery Leadership Team with transparency regarding strategy gaps, overdue deliverables, and… more
    Marathon Petroleum Corporation (08/27/25)
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  • Refining Reliability Engineer - Instrumentation

    Marathon Petroleum Corporation (Martinez, CA)
    …be a highly motivated, team-oriented individual who has experience with refinery and/or petrochemical applications that include process measurement and control, ... Must be able to wear appropriate PPE in the refinery (respirator), be able to physically perform all tasks...and operates gathering, processing, and fractionation assets, as well as crude oil and light product transportation and logistics… more
    Marathon Petroleum Corporation (08/11/25)
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  • Process Safety Manager

    Marathon Petroleum Corporation (Martinez, CA)
    …and minimum 8 years of Process Safety, Personal Safety or Operations experience in refinery , petro-chemical or other related heavy industry. + Must have at least 2 ... Must be able to wear appropriate PPE in the refinery , be able to physically perform all tasks in...and operates gathering, processing, and fractionation assets, as well as crude oil and light product transportation and logistics… more
    Marathon Petroleum Corporation (07/16/25)
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  • Safety Professional - Industrial Hygienist

    Marathon Petroleum Corporation (Martinez, CA)
    …person for an operations area team on all safety issues. + Support the refinery emergency response efforts as part of the Incident Command structure. + Provide ... Must be able to wear appropriate PPE in the refinery (respirator), be able to physically perform all tasks...and operates gathering, processing, and fractionation assets, as well as crude oil and light product transportation and logistics… more
    Marathon Petroleum Corporation (07/10/25)
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  • Designs Engineer - Mechanical

    Chevron Corporation (El Segundo, CA)
    …engineering support for routine daily operation of process units within the refinery . Support requires collaboration and interpersonal skills necessary to work with ... or Civil Engineering + 3+ years of experience in Oil & Gas or related industry ​ **Relocation Options:**...energy industry. Chevron explores for, produces and transports crude oil and natural gas; refines, markets and distributes transportation… more
    Chevron Corporation (09/03/25)
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  • Truck to Truck Technician

    Clean Harbors (West Sacramento, CA)
    …gallons of used motor oil each year and we have the largest re- refinery capacity in North America allowing us to re-refine more than 150 million gallons each ... year. Every day, we help our customers resolve their waste management needs and reduce their carbon footprint. **PROTECTION. CHOICES. PEOPLE. MAKE GREEN WORK. (TM) ** Clean Harbors is an equal opportunity employer. Clean Harbors is committed to providing… more
    Clean Harbors (08/27/25)
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