Lab Technician

Marathon Petroleum Corporation; Texas City (TX); On-site; USD 65,000 - 90,000; Full time

Job summary

Marathon Petroleum Corporation is seeking a Laboratory Instrument Maintenance Technician in Texas City, TX. The role focuses on ensuring reliability and accuracy of analytical instrumentation supporting refinery laboratory operations, including maintenance, calibration, and technical support for lab instruments and systems.

You will collaborate with chemists, technicians, and vendors, perform preventive maintenance, and assist in commissioning new instruments while maintaining safety and quality

Qualifications

• Associate or Bachelor’s Degree in Instrumentation Technology, Electronics Technology, Industrial Maintenance, Chemistry, Engineering Technology, or a related field.
• Five+ years in maintaining, calibrating, troubleshooting, or repairing laboratory instrumentation.
• Demonstrated mechanical, electrical, and analytical troubleshooting ability.
• Proficiency with computerized maintenance systems and Microsoft Office.
• Ability to meet medical, drug screening, background, and site-access requirements.
• Must have a valid driver’s license.

Responsibilities

• Perform preventive maintenance per schedules and SOPs.
• Troubleshoot/repair laboratory instrumentation and support equipment.
• Calibrate and verify GC, titrators, distillation units, and other analyzers.
• Track instrument performance and downtime using SQC/SPC charts.
• Maintain spare parts inventory and troubleshoot guidelines for staff.
• Assist with commissioning of new instruments and technologies.
• Audit instrument software/configurations and vendor systems.
• Collaborate with chemists on method development and maintenance projects.

Skills

Preventive maintenance

Troubleshooting

Calibration

Instrument maintenance

SQC/SPC

MS Office/maintenance systems

Driver's license

Education

Associate or Bachelor’s Degree in Instrumentation Technology or related technical field

Tools

Gas chromatography

Titrators

Distillation units

Analytical instrumentation

Job description

At MPC, we’re committed to being a great place to work – one that welcomes new ideas, encourages diverse perspectives, develops our people, and fosters a collaborative team environment.

The Galveston Bay Refinery (GBR) has an opening for a Laboratory Technician located in Texas City, TX.

Position Summary

The Laboratory Instrument Maintenance Technician (IMT) is a Lab Technician position responsible for ensuring the reliability, accuracy, and availability of analytical instrumentation supporting refinery laboratory operations. The position performs preventive maintenance, troubleshooting, repair, calibration, equipment evaluation, and technical support for laboratory instruments and associated systems. The IMT works closely with laboratory technicians, chemists, supervision, maintenance personnel, and equipment vendors to maintain safe, accurate, and efficient laboratory operations.

Key Responsibilities

• Perform preventive maintenance in accordance with established maintenance schedules, safety requirements, corporate standards, laboratory SOPs, and applicable analytical methods.
• Troubleshoot and repair laboratory instrumentation and associated support equipment as requested or required.
• Calibrate and verify analytical equipment, including gas chromatographs (GCs), titrators, distillation units, flash point analyzers, and other laboratory instrumentation.
• Track instrument performance, reliability, downtime, and recurring problems using statistical quality control and statistical process control (SQC/SPC) charts and other performance indicators.
• Identify critical instruments and maintain an appropriate inventory of spare parts and maintenance materials to minimize equipment downtime.
• Prepare troubleshooting guidelines that enable laboratory technicians to perform appropriate initial troubleshooting of equipment problems.
• Provide technical information to chemists for incorporation into analytical methods and related laboratory documentation.
• Evaluate, set up, and support the commissioning of new laboratory instruments and technologies.
• Audit gas chromatography and other instrument software, configurations, and related systems.
• Work with chemists on analytical method development, equipment evaluations, technical duties, and project assignments.
• Interact with chemists and supervision to manage and control the cost of maintenance materials and services.
• Develop and maintain a working knowledge of laboratory instrumentation, instrument software, and emerging analytical technology.
• Maintain and repair specialized instruments that require an advanced level of technical expertise.
• Coordinate with equipment vendors and service providers for specialized repair, technical support, and vendor-specific training.
• Perform other related technical duties and work assignments as directed.

Knowledge, Skills, And Abilities

Instrumentation and Maintenance

• Knowledge of preventive, predictive, and corrective maintenance practices for analytical laboratory instrumentation.
• Ability to troubleshoot mechanical, electrical, electronic, pneumatic, and instrument-control problems.
• Ability to interpret technical manuals, wiring diagrams, schematics, flow diagrams, and vendor documentation.

Calibration and Analytical Systems

• Ability to calibrate, verify, and document instrument performance with accuracy, precision, and traceability.
• Working knowledge of gas chromatography, instrument detectors, carrier gas systems, sample introduction systems, and other refinery laboratory analyzers.
• Understanding of factors such as temperature, pressure, vibration, gas quality, and environmental conditions that may affect instrument performance.

Quality and Reliability

• Ability to use SQC/SPC charts, equipment histories, and performance trends to identify recurring problems and support corrective action.
• Working knowledge of laboratory SOPs and applicable ASTM, AGA, GPA Midstream, or other relevant industry standards.
• Ability to maintain complete maintenance, calibration, and equipment-performance records.

Safety

• Ability to recognize hazards and apply appropriate controls before and during maintenance activities.
• Knowledge of Lockout/Tagout requirements and the safe use of tools, chemicals, compressed gases, and electrical equipment.
• Commitment to using required personal protective equipment and stopping work when unsafe conditions exist.

Communication and Teamwork

• Ability to communicate technical conditions, troubleshooting findings, and repair recommendations clearly in writing and verbally.
• Ability to work effectively with laboratory technicians, chemists, supervision, maintenance crafts, vendors, and other refinery personnel.

EDUCATION AND EXPERIENCE:

Minimum Qualifications

• Associate or Bachelor’s Degree in Instrumentation Technology, Electronics Technology, Industrial Maintenance, Chemistry, Engineering Technology, or a related technical or scientific discipline. (Education must be obtained/completed prior to start date)
• Five years or more of experience maintaining, calibrating, troubleshooting, or repairing laboratory instrumentation, process analyzers, or industrial instrumentation.
• Demonstrated mechanical, electrical, and analytical instrument troubleshooting ability.
• Ability to use computerized maintenance systems, instrument software, and Microsoft Office applications.
• Ability to meet applicable medical, drug screening, background, and site-access requirements.
• Ability to work the schedule and provide coverage required for the position.
• A valid driver's license is required.

Preferred Qualifications

• Instrument and Electrical (I&E) experience involving laboratory instrumentation and equipment.
• Refinery, petrochemical, natural gas, pipeline, or industrial laboratory experience.
• Experience with gas chromatographs, titrators, distillation units, flash point analyzers, spectroscopy systems, sulfur analyzers, or other petroleum laboratory equipment.
• Experience supporting analytical method development, equipment validation, quality systems, or laboratory reliability programs.
• Vendor-specific training or certification for analytical laboratory instrumentation.

As an energy industry leader, our career opportunities fuel personal and professional growth.

Location: Texas City, Texas

Job Requisition ID: 00024642

Location Address: 2401 5th Ave S

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 [e-mail]. 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 https://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.