Associate Operational Technology Specialist - Cybersecurity

At Motiva, our employees’ energy, passion, and dedication to excellence are what make us who we are and what allows us to generate energy that makes a house a home, gets us from point A to point B, and enables our health and wellbeing. We invest in every aspect of our employees’ lives because, at Motiva, our people matter.

Headquartered in Houston, Texas, Motiva refines, distributes and markets petroleum products throughout the Americas. The company’s Port Arthur Manufacturing Complex in Port Arthur, TX, is comprised of North America’s largest refinery with a total throughput of 720,000 barrels per day, the largest base oil plant in the western hemisphere, and an integrated chemical plant. Under exclusive long-term brand licenses with Shell and Phillips 66 (for the 76 brand), Motiva’s commercial operations supply more than 12 billion gallons of fuel to customers annually.

Motiva is wholly owned by Aramco, one of the world’s largest integrated energy and chemicals companies.

Position Overview:

The Associate Operational Technology Specialist – Cybersecurity supports the security, reliability, and availability of Operational Technology (OT) systems at Motiva’s Port Arthur Manufacturing Complex. This role provides technical support for critical OT infrastructure, assists with cybersecurity and system lifecycle activities, and helps maintain the availability and integrity of systems that support safe and reliable operations.

Responsibilities:

Monitor and support OT systems and infrastructure, including DCS, PLC, SCADA, IIoT, and associated network components, to maintain system availability and performance.

Perform approved patching, vulnerability remediation, anti-virus updates, and other cybersecurity maintenance activities on OT assets.

Provide first-level troubleshooting and technical support for OT hardware, software, applications, and connectivity issues, escalating complex issues as appropriate.

Support OT cybersecurity reviews, vulnerability evaluations, risk assessments, and remediation activities in coordination with local and enterprise security teams.

Assist with OT hardware and software lifecycle activities, including installations, upgrades, equipment refreshes, backups, and secure asset disposal.

Monitor system alerts, alarms, network connectivity, and performance to identify and resolve potential technical or cybersecurity issues.

Maintain accurate OT system documentation, asset information, procedures, and work instructions to support operational and cybersecurity requirements.

Assist with developing OT compliance, cybersecurity, and performance reports using SQL and industry-standard reporting tools.

Support OT applications and development activities, including requirements gathering, code reviews, and administration of code repositories.

Manage assigned work through the department ticketing system, support OT projects and improvement initiatives, and provide off-hours technical support as needed.

Experience and Qualifications:

Required

Education and Experience:

Bachelor’s degree in Management Information Systems, or in a similar discipline by December 2026

Cumulative 3.0 GPA, or higher

Experience with Microsoft Office operating systems

Knowledge and experience with custom script development

Skilled in troubleshooting and resolving computer issues

Experience with utilizing databases and developing queries

Excellent written and oral communication skills

Ability to learn new IT/OT skills as required

Preferred

Education and Experience:

1-3 years of relevant OT experience

Knowledge and understanding of cybersecurity programs and frameworks

Physical Requirements:

Physical ability to work around and on industrial equipment, including frequent climbing of stairs and ladders

Ability to wear Personal…