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Job Summary
The Marathon Los Angeles Refinery, located in Carson, California, is seeking an experienced Analyzer Reliability Engineer to lead analyzer reliability initiatives and improvements at the site. The primary function of this position is to ensure all analyzers are designed, installed, maintained, and operated such that they perform with the highest degree of reliability. This includes justifying and budgeting for planned equipment replacements, troubleshooting existing issues, implementing new solutions and creating new reliability programs targeting longer run-times and safer, more compliant operations.
The onsite schedule of this position is Monday - Thursday, 10 hours per day core business hours are 6:30 AM - 4 PM, after hours calls are required several times a month and support of TAR/outage 1-2 time a year.
Key Responsibilities
Support maintenance of analyzer systems for both open-loop and closed-loop applications.
Lead the development of the refinery 5-year plan to replace end of life/obsolete analyzers.
Work on a team, collaborating and interfacing with all departments of the refinery, as well as various corporate entities.
Represent the Los Angeles Refinery and actively participates in the MPC analyzer advisory group.
Recommend changes to current technology and practices through involvement with industry organizations and research outside of MPC systems. Develop Project Request Forms (PRFs) for analyzer improvement projects, equipment upgrades, etc. Includes financial justification (life cycle cost analysis).
Monitor analyzer system performance across downstream departments and recommend improvements for optimization.
Assist in preventive and breakdown maintenance, including online process analyzers and environmental gas monitors.
Lead multi-department teams to solve recurring analyzer equipment failures, threats, and/or performance issues. Perform root cause failure analyses on analyzer equipment, documents the Continuous Improvement Plans (CIPs), and implement corrective actions. Share lessons learned on equipment failures through involvement with incident investigations and troubleshooting.
Develop turnaround work scope for analyzers.
Coordinate major spare parts philosophy on equipment spares for analyzers.
Provide guidance, training, and troubleshooting to plant departments; acts as a subject matter expert on analyzers.
Ensure data from analyzers communicate information for availability reports and environmental reports.
Work with the project teams and maintenance to ensure that any new or replacement analyzers will optimally and reliably perform the measurement required.
Maintain an analyzer systems knowledge repository and shares best practices. Continues to stay current with the latest analytical technology by attending conferences and trade events specifically devoted to analyzers.
Work closely with plant operators, maintenance teams, lab, project groups, and other engineers to effectively maintain refinery analyzers.
Education, Experience and Skills
Minimum Qualifications
Must have a Bachelor’s degree in Electrical, Electronics, Chemical, or Instrumentation Engineering and a minimum of 7 years of engineering experience in a refinery or petrochemical plant which includesa minimum of 5 years experience with analyzers.
Must be proficient in troubleshooting analyzers to ensure safe, compliant, and reliable operations.
Must be proficient with maintenance/reliability management systems.
Must be proficient in Microsoft: Word, Excel and Outlook.
Must have excellent interpersonal and collaboration skills.
Must be able to wear appropriate PPE in the refinery (respirator), be able to physically perform all tasks in the field and take hair drug test and physical.
Must have a valid driver’s license. (MPC determines valid status.)
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 the onsite schedule - Monday - Thursday, 10 hours per day core business hours are 6:30 AM - 4 PM, after hours calls are required several times a month and support of TAR/outage 1-2 time a year.
Preferred Qualifications
Understanding of petrochemical chemistry and physical analysis methods (e.g., moisture, pH, density, conductivity) is preferred.
Understanding of gas chromatography, methods to measure O2 in furnaces, and applications for TDLAS technology is preferred.
Understanding physics and chemistry with emphasis on gas and fluid dynamics is preferred.
Understanding integrated analyzer systems and knowledge of many different types of analyzer measurements is preferred.
Understanding of basic refinery plant operations and hands on approach to design and problem solving is preferred.
Knowledge of process safety, environmental regulations, CEMS, and OSHA/EPA guidelines is preferred.
Knowledge of instrumentation such as flow, pressure, and temperature measurement as it relates to analyzer sample systems is preferred.
Working knowledge of PLC systems is preferred.
Proficient with maintenance/reliability management systems SAP, AMS, SPI is is preferred.
Relocation may be available. https://mympcbenefits.com/relocating/
This job will posted through Thursday, May 21, 2026.
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.
Learn more about Marathon Petroleum’s benefits at https://mympcbenefits.com/
As an energy industry leader, our career opportunities fuel personal and professional growth.
Location:
Carson, CaliforniaJob Requisition ID:
00021804Pay Min/Max:
$122,900.00 - $212,000.00 SalaryGrade:
12 - 13Location Address:
2350 E 223rd StAdditional locations:
Wilmington, CaliforniaEducation:
Bachelors (Required)Employee Group:
Full timeEmployee Subgroup:
RegularMarathon Petroleum Company LP is an Equal Opportunity Employer and gives consideration for employment to qualified applicants without discrimination on the basis of race, color, religion, creed, sex, gender (including pregnancy, childbirth, breastfeeding or related medical conditions), sexual orientation, gender identity, gender expression, reproductive health decision-making, age, mental or physical disability, medical condition or AIDS/HIV status, ancestry, national origin, genetic information, military, veteran status, marital status, citizenshipor any other status protected by applicable federal, state, or local laws.If you would like more information about your EEO rights as an applicant, click here.
If you need a reasonable accommodation for any part of the application process at Marathon Petroleum LP, please contact our Human Resources Department at talentacquisition@marathonpetroleum.com. Please specify the reasonable accommodation you are requesting, along with the job posting number in which you may be interested. A Human Resources representative will review your request and contact you to discuss a reasonable accommodation. Marathon Petroleum offers a total rewards program which includes, but is not limited to, access to health, vision, and dental insurance, paid time off, 401k matching program, paid parental leave, and educational reimbursement. Detailed benefit information is available at mympcbenefits.com. The hired candidate will also be eligible for a discretionary company-sponsored annual bonus program.
Equal Opportunity Employer: Veteran / Disability
We will consider all qualified Applicants for employment, including those with arrest or conviction records,