Jobs at Marathon Petroleum Corporation

Supports project cost, schedule, and performance data management; prepares routine reports; updates schedules; tracks invoices, purchase orders, actuals, and change requests; maintains project documentation; assists with audits, meetings, and follow-up actions. Develops foundational knowledge of project controls, cost control, scheduling, risk, and performance measurement through training and guidance from senior team members.

Provides operational and technical support for refinery OT server, network, hardware, software, and industrial control environments. Performs maintenance, performance testing, troubleshooting, root cause analysis, system configuration, reporting, documentation, and basic systems administration. Supports HMI and PLC infrastructure, collaborates with engineers and operations teams to restore services, and helps improve infrastructure reliability, security, compliance, and business processes.

Provides operating-unit support for refinery process control systems, including monitoring performance, troubleshooting hardware and software, managing system lifecycle activities, coordinating vendors, leading management of change, and supporting capital projects. The role performs system upgrades, incident investigations, application support, training, documentation, reliability improvements, and process-control standards development. It requires occasional extended-hours and emergency response, refinery-site access, on-call availability, up to 10% travel, and a valid driver’s license.

Provides troubleshooting and technical support for rotating and fixed equipment. Applies reliability analytics, failure evaluations, and cost analysis to improve equipment performance. Develops project requests with financial justification, supports decision packages, champions Management of Change activities, establishes equipment monitoring plans and control limits, and verifies repairs meet or exceed OEM specifications.

Safely conduct marine barge transfers in accordance with company procedures and USCG regulations. Troubleshoot barges, perform minor maintenance, operate heaters on hot oil barges, document transfer activity, maintain equipment, audit third-party Tankerman, train new Tankerman, interface with customers, and participate in safety activities. The role requires field work on barges, vessels, fleets, and terminals in varied weather, day or night, including remote locations within a 200-mile radius of Texas City, Texas.

Serve as the subject matter expert for innovation and experimentation in the Plan-to-Produce process. Lead the VCO innovation portfolio from discovery through pilots, evaluate emerging technologies, frame and assess opportunities, run prototypes and proofs-of-concept, and guide transition to implementation. Act as an internal consultant across functions, establish experimentation standards, and lead cross-functional initiatives to drive measurable business value and transformation.

Lead design, implementation, lifecycle management, and advanced support of refinery business LANs. Own Layer 1 cabling/fiber and Layer 2 switching, troubleshoot complex incidents, drive refreshes and projects, strengthen segmentation with cybersecurity teams, maintain documentation, mentor engineers, and automate/network-monitoring tasks to improve reliability and reduce operational risk.