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Job Summary
The Marathon Los Angeles Refinery located in Carson, California is seeking an experienced Senior Process Controls Technician to provide process control systems support in the refinery. Act as primary resource for hardware and software maintenance and lifecycle planning for refinery control systems. This role will ensure reliability and function of Process Control systems and applications. This includes confirming that data and work processes are kept up to date such that applications/hardware are running as intended. The Senior Process Controls Technician will collaborate with partners and customers to communicate, schedule, and execute updates. This role will also document, communicate, provide training, and work through issues, changes, notices, and impacts to customers.
This non-exempt position will have the available onsite schedules 9/80 or 5/40, after hours calls are required and support of TAR.
Key Responsibilities
Designs, implements, and maintains process control strategies to optimize unit performance and reliability.
Troubleshoots and resolves control system issues, including hardware, software, and network components.
Collaborates with operations, engineering, and maintenance teams to resolve operational challenges. Develops and maintains relationships with console operators.
Maintains and optimizes control systems (e.g., DCS, PLC, SIS) to support safe and efficient refinery operations.
Develops and maintains control narratives, logic diagrams, and system documentation.
Manages controls-related projects, including scope development, vendor coordination, and commissioning
Hardware and Software
Manage spare parts inventory and Control System failure metrics
Maintain Process Control cabling
Perform system configurations
Troubleshoot 3rd party device issues, manage PLC inventory
Process Control Management
Support control loop implementation
Update Control System data historian
Assist with PLC/SIS programming and operations interpretation
Lead incident investigations and participate as needed
Small and Large CAPEX Project Roles
Lead project design, FAT, SAT, and implementation of new hardware/software
Represent Process Control in design and testing phases
Application Support
Provide technical support, improve work practices, and monitor application performance
Coordinate with vendors on updates and communicate changes
Maintain and troubleshoot Control System data historians
Develop and maintain site-specific standards, training guides, and “how-to’s”
Education, Experience and Skills
Minimum Qualifications
Must have a High School Diploma or GED. (Education must be obtained/completed prior to start date.)
Must have at least 5 or more years of experience in industrial controls or instrumentation maintenance.
Must be proficient in Microsoft 365: Word, Excel and Outlook.
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.
Must be legally authorized to work in the US without the need for future VISA sponsorship. Details on what VISAs require Company Sponsorships examples are as follows: H-1B, L-1, TN, O-1, E-3, H-1B1, F-1, J-1, OPT, CPT or any other employment-based visa.
Travel Requirement is 10%.
Must be able to work the onsite schedule: 9/80 or 5/40, after hours calls are required and support of TAR.
Preferred Qualifications
Associate's Degree in Electrical or Instrument Technology is preferred.
Bachelor’s Degree in Computer Science, Information Systems, Chemical Engineering, Electrical Engineering, or Computer Engineering is preferred.
Experience with the following preferred:
DCS: Experion, TPS/TDC, GE Mark VIe
PLC Maintenance, Logic, Troubleshooting: Allen Bradley, Modicon
SIS Maintenance: Safety Manager, Triconex
Honeywell Dynamo Suite, Hexagon Integrity, AspenTech DMC, Aveva PI
SQL (SSMS, SSRS, SSIS), Data Analysis Scripting (Python, SQL, VBA)
Basic Networking
Industrial Protocols (ModBus, OPC, OPCUA)
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:
Los Angeles CA Refinery
Job Requisition ID:
00023070
Pay Min/Max:
$93,000.00 - $160,300.00 Salary
Grade:
N8 - N9
Location Address:
2101 E Pacific Coast Hwy
Additional locations:
Education:
High School (Required)
Employee Group:
Full time
Employee Subgroup:
Regular
Marathon 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, citizenship or 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 [email protected]. 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, in a manner consistent with the requirements of applicable state and local laws. In reviewing criminal history in connection with a conditional offer of employment, Marathon will consider the key responsibilities of the role.
