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Sr CI/OT Architect

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Delek US

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Location:
United States , Dallas

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Category:
IT - Administration

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Contract Type:
Not provided

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Salary:

Not provided
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Job Description:

The CI/OT Architect is responsible for establishing enterprise ownership of Operational Technology (OT) architecture and lifecycle governance across refinery environments. This role defines standards, provides technical design authority, and ensures consistency of OT systems supporting safe and reliable operations. This position bridges IT, engineering, and operations to guide implementation while maintaining cross-site alignment, long-term sustainability, and effective lifecycle management of critical OT infrastructure.

Job Responsibility:

  • Establish enterprise ownership of Operational Technology (OT) architecture and lifecycle governance across refinery environments
  • Define standards, provide technical design authority, and ensure consistency of OT systems supporting safe and reliable operations
  • Bridge IT, engineering, and operations to guide implementation while maintaining cross-site alignment, long-term sustainability, and effective lifecycle management of critical OT infrastructure
  • Establish and maintain enterprise OT architecture standards across refinery environments
  • Provide technical design authority for OT infrastructure including control systems, industrial networks, and integration platforms
  • Govern lifecycle management processes including patching, upgrade sequencing, and version alignment across sites
  • Lead architecture planning and technical oversight for OT infrastructure initiatives and modernization programs (e.g., OTPCN)
  • Define and enforce network segmentation, firewall, and secure access models within OT environments
  • Partner with site IT teams to guide implementation while ensuring alignment with enterprise standards
  • Collaborate with engineering, operations, and corporate IT teams to align OT infrastructure with business objectives
  • Maintain documentation of architecture standards, configurations, and design decisions
  • Evaluate and recommend technologies, vendors, and solutions to support OT environments
  • Provide technical leadership and support during major incidents, outages, and troubleshooting scenarios
  • Ensure compliance with safety, environmental, and regulatory requirements impacting OT systems
  • Support integration of OT systems with enterprise platforms, data historians, and analytics solutions
  • Drive continuous improvement of OT infrastructure maturity, scalability, and resilience
  • Maintain internal ownership of architecture and standards while leveraging contingent resources for execution

Requirements:

  • 4 year / Bachelor's Degree (Required)
  • In lieu of the above education requirements, an equivalent combination of education and experience may be considered.
  • Two (2) or more years Experience in refining, oil & gas, petrochemical, or other process industries (Preferred)
  • Six (6) or more years Extensive experience with industrial networking, including Cisco switching/routing, network design, and segmentation strategies. (Required)
  • Preferred Certifications/Licensures: (CISSP, GICSP, CCNP/ PCNSE, TOGAF, or vendor-specific control system certifications)
  • Extensive experience with industrial networking, including Cisco switching/routing, network design, and segmentation strategies.
  • Hands-on experience configuring and managing Palo Alto and Cisco firewalls in secure OT environments.
  • Proven ability to design complex systems and lead cross-functional technical initiatives.
  • Excellent problem-solving, communication, and stakeholder management skills.
  • Familiarity with cloud integration, data historians, and advanced analytics platforms.
  • Knowledge of Distributed Control Systems (DCS), including Yokogawa, Emerson DeltaV, Honeywell, and Foxboro, as well as SCADA systems and HMI technologies.
What we offer:
  • Up to a 10% match on 401K on your hire start, with a vesting timeline of only one year
  • Medical benefits that start on day one with a 30% premium rebate annually
  • Access to the Calm app for FREE
  • Additional annual incentives through performance management program
  • Highest bonus payouts in recent years

Additional Information:

Job Posted:
May 15, 2026

Employment Type:
Fulltime
Work Type:
On-site work
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