Senior Cybersecurity Engineer – Industrial OT & ICS Security

Vistra Corp; Irving (TX); On-site; USD 120,000 - 190,000; Full time

Job summary

Vistra Corporate Services Company in Irving, Texas seeks a cybersecurity SME for the generation fleet to drive program improvements, lead incident investigations, and ensure alignment with enterprise security strategies and regulatory obligations. You will understand processes and initiate necessary changes to address vulnerabilities and gaps in standards.

The role requires hands-on leadership across cross-functional teams, development of fleet-wide standards, and collaboration on capital

Qualifications

• 5–8 years in industrial or infrastructure cybersecurity roles.
• Deep understanding of NERC CIP, IC/OT security, and control systems engineering.
• Experience leading cross-functional teams.
• Strong analytical and communication skills.
• Knowledge of TCP/IP, routing, switching, VLANs, NAT, firewalls, and segmentation.
• Experience with industrial networks or air-gapped environments is a plus.
• Proficiency in scripting/automation to enforce security controls and validate compliance.

Responsibilities

• Lead complex cybersecurity initiatives and remediation campaigns.
• Develop fleet-wide security standards and guidance.
• Provide oversight during audits and inspections.
• Lead root cause analysis of cybersecurity events.
• Develop dashboards and metrics for executives and operations.
• Represent cybersecurity on capital projects and plant upgrades.

Skills

Industrial cybersecurity

Leadership

Networking fundamentals

Scripting/Automation

Cross-functional collaboration

Education

College degree or certification in field

Tools

PowerShell

Python

JavaScript

Job description

Vistra Corporate Services Company in Irving, Texas seeks a cybersecurity SME for the generation fleet to drive program improvements, lead incident investigations, and ensure alignment with enterprise security strategies and regulatory obligations. You will understand processes and initiate necessary changes to address vulnerabilities and gaps in standards.

The role requires hands-on leadership across cross-functional teams, development of fleet-wide standards, and collaboration on capital