Sr CI/OT Architect

Delek US • Tyler, TX

8d

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.

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

Benefits

• We offer fantastic benefits that include up to a 10% match on 401K on your hire start, with a vesting timeline of only one year, along with medical benefits that start on day one with a 30% premium rebate annually!
• We value your well-being and all employees now have access to the Calm app for FREE, which is used for meditation, stress management, and better sleep.
• Through our performance management program, you can earn additional annual incentives as you set and achieve goals.
• Our pay for performance culture motivates our employees to improve Delek’s year-over-year company, business unit, and individual results.

What This Job Offers

• Job Type: Full-time
• Career Level: Mid Level