Responsibilities: • This position will require some field work inside the refinery process units. • Perform network administration on switches, routers, and firewall network devices. Most configuration activities will be Layer 2 switching with some occasional Layer 3 routing work. • Monitor network device health and identify issues using common industry toolsets. • Problem tracking, management, and resolution of issues in a 24/7 manufacturing location. The candidate will be called upon to perform duties during off-hours on occasion as needed. • Learn, understand and apply Marathon Standard Practices to OT infrastructure assets. • Engage in auditing, compliance, and risk assessment processes. Ensure network device inventory is accurate. • Administration of the physical IP cabling and IP address assignments to support the refinery OT communications. • Review and Update network diagrams to accurately represent the physical connected IP network infrastructure. • Identify, Analyze, and Elevate potential Cybersecurity events according to company procedures. • Daily activities may also include network device backup administration, performance tuning, change control administration, network security detection administration, and self-auditing to ensure compliance with standards. • Implement network solutions; ensuring standards are applied consistently. Close interaction with business partners during development, support, and implementation of in-house or 3rd party systems. • Administration of network device logging to identify security or reliability issues. • Create and present project documentation for capital and expense projects. • Recommend continuous improvement opportunities. • Participate on OT Subject Matter Expert teams for implementing cross-functional OT strategic initiatives. Providing subject matter expertise/consulting services. Preferred Qualifications: • Bachelor’s degree in Computer Science, Information Systems, or related field. • Previous experience in OT, Honeywell Experion, Emerson DeltaV, Foxboro, SCADA, or Refining environment is a plus. • Experience with configuration of Cisco, Sonicwall, Tofino, or Checkpoint devices is a plus. • Experience with Security Information Event Management (SIEM) a plus. • Cisco switching, routing, or security certifications are a plus.
ANY GRADUATE