• Planning & Optimization Engineer

    Marathon Petroleum Corporation (Carson, CA)
    …as Aspentech PIMS (Linear programming model) and Aspentech Petroleum Scheduler (APS). The Refinery Operations Coordinator (ROC) serves as the lead for all ... commercial roles. Key Responsibilities + Coordinates the commercial aspects of refinery operations , including feedstock selection, product and intermediate… more
    Marathon Petroleum Corporation (07/23/25)
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  • Intern/Co-op - Refining Chemical Engineering…

    Marathon Petroleum Corporation (Martinez, CA)
    …. Past projects/duties include: develop and lead test runs to optimize refinery operations ; perform process engineering calculations concerning the various ... and adsorbents; complete projects and provide recommendations for improvements to the refinery process and equipment. Operations Research Engineers may help… more
    Marathon Petroleum Corporation (07/23/25)
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  • Senior Project Management - Project Engineering

    Marathon Petroleum Corporation (Wilmington, CA)
    …turning over to operations . + Manage and update project information on refinery document control systems. + Provide documentation and support to Operations ... in operations , maintenance or engineering technical services experience in refinery or EPC Contractors (Engineering Procurement and Construction) + Must have… more
    Marathon Petroleum Corporation (07/19/25)
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  • Construction Lead - Richmond Refinery

    Chevron Corporation (Richmond, CA)
    …applications for the position through **8/22/25** at **11:59 pm** (PST). The Richmond Refinery Construction Lead plays a pivotal role in the successful execution of ... large-scale construction, maintenance, and upgrade projects at the refinery located in Richmond. This position involves leading a multidisciplinary team while… more
    Chevron Corporation (08/07/25)
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  • Millwright

    Florida Crystals Corporation (Crockett, CA)
    …+ Perform cleaning and lubrication on mechanical equipment. + Work with other refinery maintenance and operations personnel to handle normal everyday problems. + ... & Responsibilities + Responsible for providing maintenance services through the refinery . + Performs mechanical troubleshooting and repairs. + Perform routine and… more
    Florida Crystals Corporation (07/18/25)
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  • 2026 Facilities Engineering Materials Engineering…

    Chevron Corporation (Richmond, CA)
    …Texas **Materials Engineering Interns** may work in one of Chevron's US-based refinery operations (El Segundo, Pasadena, Pascagoula, Richmond, and Salt Lake) ... deploys technologies that enhance business value in every aspect of the company's operations . Chevron is based in Houston, Texas. More information about Chevron is… more
    Chevron Corporation (08/02/25)
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  • Senior Technology Expert (Reforming, Isom,…

    Chevron Corporation (El Segundo, CA)
    …+ Bachelor's degree in chemical engineering + 15+ years of experience in refinery or petrochemical operations with a focus on naphtha hydrotreating, ... new technologies. + Conduct process simulation studies aimed at enhancing reforming operations and identifying areas for improvement. + Create and present technical… more
    Chevron Corporation (08/01/25)
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  • Refining Engineer 1 - Chemical Engineer - Intern…

    Marathon Petroleum Corporation (Wilmington, CA)
    …Control / Economics Engineers may work on a wide array of projects including operations , blending, and refinery economics. You will gain an understanding of how ... Process Engineers/Technical Service Engineers provide technical support for the plant operations . They will be assigned a specific unit or units within… more
    Marathon Petroleum Corporation (06/11/25)
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  • LDAR Technician

    APTIM (Martinez, CA)
    …Previous experience working of an industrial (ie fitting, welding, instrumentation, etc) refinery (ie, operations , maintenance, etc.) nature preferred. + LDAR / ... Fugitive Emission Monitoring (Method 21) with TVA 1000B and calibration experience a plus. **PHYSICAL** **REQUIREMENTS:** Strength: Standing 50% Walking 20% Sitting 30% Lifting 35 lb. Carrying 35 lb. Pushing 0 ft-lb. Pulling 0 ft-lb. 2. Climbing O Balancing O… more
    APTIM (07/02/25)
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  • Process Safety Manager

    Marathon Petroleum Corporation (Martinez, CA)
    …have at least and minimum 8 years of Process Safety, Personal Safety or Operations experience in refinery , petro-chemical or other related heavy industry. + Must ... calls are required occasionally to support a 24 hour operations and rarely support of TAR. Job Responsibilities +...Must be able to wear appropriate PPE in the refinery , be able to physically perform all tasks in… more
    Marathon Petroleum Corporation (07/16/25)
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