Instrumentation Mechanic

Full Time
Martinez, CA
Marathon Petroleum Company LP
Energy & Mining, Installation, Maintenance & Repair

Website Marathon Petroleum Company LP

Title: Instrumentation Mechanic

Company: Marathon Petroleum Company LP

Location: Martinez, CA

The Marathon Martinez Renewable Fuels Facility is seeking a highly motivated Instrumentation Mechanic to join our team. Instrumentation Mechanics support the operation of the facility by properly maintaining instrument and analyzer systems which allows for safe, compliant, and reliable facility operations.

Instrumentation Mechanics at this facility perform a variety of duties. Although responsibilities vary on a daily basis, the primary responsibility of an Instrumentation Mechanic is to install, calibrate, and maintain all instrumentation and equipment within the facility.

Other primary responsibilities will include:

  • Performing calibration and maintenance on equipment, including transmitters, control valves, solenoid valves, vibration equipment, pressure/temperature/level/flow instruments, PLCs, control systems, etc.
  • Training on the maintenance of instrument and analyzer systems, including installation, calibration, testing, troubleshooting, and repair.
  • Completing all required documentation (work orders, calibration sheets, etc.) in a timely manner. 
  • Communicating significant safety and equipment issues to supervisor and all applicable levels of site management.
  • Ensuring all work is performed in a safe environment manner, adhering to site Health and Safety processes and Environmental regulations.
  • Participating in preventative maintenance activities as part of our Mechanical Integrity Program.

Required Qualifications

  • High school diploma or equivalent required.
  • 2+ years journeyman level instrument/analyzer experience required OR
    • Completion of a recognized instrument apprenticeship program or trade school.
  •  Experience in troubleshooting, repair, installation, and calibration of instrumentation required. 
  • Ability to work irregular or extended hours and call-out situations as needed.
  • Must have a valid driver’s license.
  • Must be willing to obtain Transportation Worker Identification Credential (TWIC) upon employment. 
  • At least 18 years of age required. 
  • Adherence to a strict Drug and Alcohol policy.

Preferred Qualifications

  • Refining, petrochemical, or other related industry experience preferred.
  • Analyzer experience preferred.
  • Knowledgeable in Microsoft Office (Outlook, Word, Excel) and SAP preferred.

Physical Requirements

Work performed at ground level and at heights on concrete, metal grating, gravel, asphalt, and piping surfaces, while climbing, lifting up to 50 pounds, carrying 10-20 pounds, pushing/pulling up to 75 pounds with mechanical assistance, working in confined spaces, and working in inclement weather. 

Must be able to walk, sit, stand, reach, stoop, bend, kneel, squat, crawl, climb ladders, work at heights, use excellent balance, and wear appropriate PPE. 

Pay and Benefits

Starting rate of $49.99/hour for employees with journeyman instrument/analyzer experience. This position offers highly competitive benefits including Medical, Dental and Vision benefit options, Paid Parental Leave, Company Match on 401(k) Contributions, Cash Balance Pension Retirement Plan and much more! Benefits information can be found on


About Marathon’s Martinez Refinery: At Marathon Petroleum, we are sharpening our focus on meeting the world’s growing energy needs while reducing our carbon emissions intensity. As part of this effort, we are repositioning our Martinez refinery to become Martinez Renewable Fuels, a renewable fuels manufacturing and terminal facility that will be able to produce approximately 730 million gallons of renewable fuels per year. Learn more at

Marathon Petroleum Company is an Equal Opportunity Employer.

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