OT Infrastructure & Systems Engineer

HF Sinclair Corporation; Artesia (NM); On-site; USD 85,000 - 120,000; Full time

Job summary

HF Sinclair Corporation is seeking an OT System & Infrastructure Specialist to support fleet-wide OT infrastructure across multiple HF Sinclair sites in Dallas, TX; Artesia, NM; El Dorado, KS; Tulsa, OK; Casper, WY; Sinclair, WY; Salt Lake City, UT; Woods Cross, UT; Anacortes, WA.

You will administer and troubleshoot OT servers, endpoints, virtualization, networks, and industrial firewalls to keep critical ICS environments running.

Responsibilities

• Administer, maintain, and support Operational Technology (OT) infrastructure systems across fleet locations, including servers, virtualization platforms, network devices, industrial firewalls, endpoint platforms, backups, and supporting services.
• Provide advisory and hands-on technical support, as appropriate, for OT infrastructure associated with Honeywell Experion PKS/FTE, Foxboro ICS, Siemens ICS, and other Industrial Automation and Control Systems (IACS) environments, including centrally managed platforms, approved fleet standards, escalated site support, and infrastructure lifecycle activities.
• Assist with implementation, configuration, and lifecycle management of OT infrastructure standards, including system hardening, configuration baselines, patching, backup schedules, and disaster recovery procedures.
• Deployment, configuration, lifecycle management, administration, and ongoing support of centrally managed OT infrastructure platforms and fleet-wide support toolsand applicationsused across supported OT environments.
• Coordinate with refinery operations, maintenance, reliability,OT, IT, vendors, and contractors to support safe and reliable OT system operation.
• Maintain and improve OT infrastructure asset records, network documentation, system diagrams, configuration records, backup records, and infrastructure support documentation. Support efforts to ensure centrally managed OT assets and support platforms are accurately documented, visible, and supportable through approved fleet tools and reporting processes.
• Perform or coordinate approved OT infrastructure maintenance activities in accordance with change management, management of change, and site operating procedures.
• Support the implementation of security updates, operating system patches, application patches, and firmware updates for OT systems where validated and approved by the business.
• Monitor OT infrastructure health, availability, capacity, and performance; troubleshoot hardware, operating system, virtualization, network, and communication issues.
• Support incident response activities by providing technical analysis, system recovery assistance, log collection, and infrastructure restoration support.
• Assist with vulnerability remediation and corrective action activities identified by the OT Cybersecurity Analyst, OT CybersecuritySpecialist, audit findings, or risk assessments.
• Participate in technical and non-technical projects requiring OT infrastructure support and cybersecurity oversight to ensure standards, policies

Job description

HF Sinclair Corporation is seeking an OT System & Infrastructure Specialist to support fleet-wide OT infrastructure across multiple HF Sinclair sites in Dallas, TX; Artesia, NM; El Dorado, KS; Tulsa, OK; Casper, WY; Sinclair, WY; Salt Lake City, UT; Woods Cross, UT; Anacortes, WA.

You will administer and troubleshoot OT servers, endpoints, virtualization, networks, and industrial firewalls to keep critical ICS environments running.