Chemist

Overview An exciting career awaits you. At MPC, we are committed to being a great place to work – welcoming new ideas, encouraging diverse perspectives, developing our people, and fostering a collaborative team environment. Job Title Chemist Location Carson, California — Marathon Los Angeles Refinery Job Summary The Marathon Los Angeles Refinery located in Carson, California is seeking an experienced Chemist to conduct 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. Key Responsibilities 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 good laboratory practices and applicable standards of quality control and quality assurance. Records and analyzes results, assembles and summarizes data, and issues Certificate of Analysis (COAs) to external and internal customers. Recommends procedures to eliminate, solve or correct unfavorable conditions found as a result of analysis. Conducts troubleshooting and develops corrective actions to mitigate unfavorable conditions found as a result of analysis; maintains equipment functionality and is knowledgeable about instruments in the lab. Verifies questionable tests by ensuring proper procedures were applied, checking equipment and chemical solutions used, and recommending corrections as needed. Keeps abreast of the latest developments and changes in testing methods, equipment and techniques used in the chemical field. Operates and trains others on the latest analytical machines and outlines special techniques to be used for their operation; maintains and documents maintenance needs. Writes and reviews Standard Operating Procedures (SOPs); develops training for technicians and ensures compliance with MPC Lab Training Standards. Acts as a liaison between the laboratory and other stakeholders in the company. Other Responsibilities Ensures proper method setup and adequate management systems for the analysis of water, petroleum, solvents, and other process-related streams per standard reference or MPC-developed methods. Compiles and summarizes data in report form for management and/or customers’ use. Maintains proficiency with test methods to conduct verification that tests conducted by technicians are accurate. Conducts self-audits to ensure adherence to MPC and regulatory standards; implements corrective actions from audits and investigations. Manages inventory of SQC materials and calibration solutions, consistent with test method requirements. May guide less experienced chemists on special projects and provide training. Oversees instrument maintenance and calibration and maintains spare parts/service contracts. Provides technical support to ensure laboratory compliance with ASTM D6299 and related quality control requirements; monitors SQC charts and investigates deviations. Trains lab personnel on test methods and maintains data logbooks, calibration records, and maintenance logs per QA procedures. Troubleshoots, maintains, and verifies laboratory instrumentation; supports laboratory testing to ensure safe performance per company standards. Interfaces with the Laboratory Information Management System (LIMS) and supports its administration and maintenance. Participates in audits and drives resolution of findings; supports DOT/regulated sample shipments as required. Provides technical assistance to operations to identify, investigate, and resolve process discrepancies. Assists in proficiency testing programs and data reporting for the site. Minimum Qualifications – Education, Experience and Skills 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 of chemical analysis and refinery, manufacturing or third-party laboratory experience, with a basic understanding of chemical substances’ composition, properties, reactions, and structures. Ability to follow written and verbal instructions; proficient with mathematical concepts and practical problem solving. Team player with strong communication skills for diverse audiences including management and external vendors; adaptable to changing requirements and priorities. Proficiency in Microsoft Word, Excel, Outlook; basic computer skills including word processing, spreadsheets, email and databases. Proficiency in LIMS software. Must be able to wear appropriate PPE in the lab and physically perform all tasks in the field; hair drug test and physical required. Valid driver’s license; steady employment history; legally authorized to work in the US without visa sponsorship. Travel requirement is 5% or less. Must be able to work one of the available schedules: 9/80, 5/40 or 4/1; after-hours calls are required. Core business hours are 8 AM - 5 PM. Preferred Qualifications Chemistry degree is preferred. Familiar with the oil refining process and refining analytical methods (physical properties, chromatography, water testing, elemental analysis, octane numbers). This job will be posted through July 8, 2026. Location: Carson, California Marathon Petroleum is an Equal Opportunity Employer. We consider applicants without discrimination on the basis of race, color, religion, sex, gender identity, age, disability, or other protected statuses. If you would like more information about your EEO rights, please visit the relevant pages provided by the company. #J-18808-Ljbffr