Sr CI/OT Architect

Delek US • Tyler, TX

9d

About The Position

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. While this job description aims to provide a comprehensive overview of the role, it may not detail every task or responsibility required.

Requirements

• 4 year / Bachelor's Degree (Required)
• Six (6) or more years Extensive experience with industrial networking, including Cisco switching/routing, network design, and segmentation strategies.
• 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.

Nice To Haves

• Two (2) or more years Experience in refining, oil & gas, petrochemical, or other process industries (Preferred)
• (CISSP, GICSP, CCNP/ PCNSE, TOGAF, or vendor-specific control system certifications)

Responsibilities

• 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

What This Job Offers

• Job Type: Full-time
• Career Level: Mid Level
• Number of Employees: 501-1,000 employees