Chemist

Marathon Petroleum Corporation

Chemist conducting comprehensive chemical analysis at Marathon Petroleum's Los Angeles Refinery. Performing laboratory operations and ensuring compliance with quality control standards.

Posted 7/1/2026full-timeCarson • California • 🇺🇸 United StatesJuniorMid-Level💰 $93,000 - $160,300 per yearWebsite

About the role

Key responsibilities & impact

Conducts comprehensive chemical analysis of water, petroleum, gasoline, solvents and other compounds to identify elements or determine quantities contained by the use of standard tests and procedures.
Ensures the laboratory’s operations adhere to the elements of good lab practice and applicable standards of quality control and quality assurance.
Records and analyzes the results obtained, assembles and summarizes data, issues Certificate of Analysis (COAs) to external and internal customers.
Conducts troubleshooting and develops corrective actions to mitigate unfavorable conditions found as a result of analysis and is knowledgeable on instruments in the lab and able to maintain equipment functionality.
Verifies questionable tests by ensuring proper procedure was applied, checking the equipment and chemical solutions used, and recommending corrections as needed.
Writes and reviews Standard Operating Procedures (SOPs); Develops training technicians and ensures compliance with MPC Lab Training Standards.
Monitors and investigates Statistical Quality Control data to ensure quality and regulatory compliance.
Develops lab procedures and assumes SME responsibility for various global lab SOPs used across sites.

Requirements

What you’ll need

Must have a Chemistry, Bio-Chemistry or Biology Bachelor’s Degree to include 16 hours of college-level chemistry classes and 6 hours of Lab courses.
Must have at least two (2) years or more of chemical analysis and refinery, manufacturing or third party laboratory experience.
Must have basic understanding of the composition, properties, reactions, and structures of chemical substances.
Must be able to follow written and verbal instructions.
Must be a team player working cohesively toward a common goal.
Must be proficient in Microsoft: Word, Excel and Outlook.
Must be proficient in LIMS software.
Must have a valid driver’s license. (MPC determines valid status.)
Must have steady employment history.
Must be legally authorized to work in the US without the need for future VISA sponsorship.

Benefits

Comp & perks

Health insurance
401(k) matching program
Paid parental leave
Educational reimbursement

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills & Tools

Chemical AnalysisQuality ControlLaboratory ProceduresStatistical Quality ControlTroubleshootingData AnalysisCertificate of Analysis IssuanceChemical Composition KnowledgeLab Equipment FunctionalitySOP Writing

Soft Skills

Team PlayerFollowing InstructionsCommunication