Director, Facility and OT Security

IREN

. Write and maintain the fleet operational technology and facility security standard.

Posted 11/9/2026full-timeRemote • Texas • United StatesLeadWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates extensive expertise in operational technology security architecture, including IEC 62443 compliance and facility security standards. Proven leadership in managing security programs across multiple sites, ensuring adherence to federal and critical infrastructure security requirements.

Highest-signal resume keywords

IEC 62443 Architecture OwnershipOperational Technology Security LeadershipFacility Security Compliance ManagementSecurity Program DevelopmentSupply Chain Provenance Assurance

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

Operational Technology SecuritySecurity ArchitectureSecurity Compliance AssessmentSecurity Logging RequirementsSoftware Bill of Materials StandardPhysical Security DesignSecurity ValidationSecurity Criteria DevelopmentBudget ManagementSecurity Program Leadership

Soft Skills

LeadershipCommunicationCollaborationMentoringProblem-Solving

Tools & Technologies

Telemetry PlatformSecurity Assessment ToolsSecurity Logging SystemsE-VerifyForm I-9

Certifications & Qualifications

ISA/IEC 62443 Cybersecurity ExpertCISSPGICSPPhysical Security Professional

Industry Keywords

Federal Security RegimeDefense Security RegimeCritical Infrastructure SecurityNERC CIPNIST SP 800-82NIST SP 800-171FedRAMPDoD Impact LevelsSecurity of Critical Infrastructure ActOperational Technology

Tech Stack

Tools & technologies

Cyber Security

About the role

Key responsibilities & impact

Write and maintain the fleet operational technology and facility security standard.
Apply the standard to new sites through the design basis and to existing sites by assessment.
Own the IEC 62443 architecture of the standard module and its application to each site, including zones, conduits, security level targets, component requirements and secure remote access.
Own facility security compliance requirements and evidence packages for federal, defense and critical infrastructure regimes.
Own the provenance and software bill of materials standard for module equipment and the exception process.
Own the physical security design basis for the standard module and fleet.
Hold security criteria at the Architecture Review Gate and security validation at Childress before each energized campaign.
Write operations security logging, response and safe degradation requirements for Operations and the telemetry platform.
Maintain the written boundary with corporate security and brief the Chief Information Officer monthly.
Hire, develop and lead the security group.

Requirements

What you’ll need

Bachelor's degree in electrical engineering, computer engineering, computer science or a related field; a master's degree is preferred. Equivalent professional experience is considered.
Fifteen or more years in security engineering with at least eight in operational technology or industrial control system security for utilities, energy, pipelines, process industry or critical facilities, including leadership of a security program across multiple sites.
Leadership of an operational technology or facility security program across more than one site, setting the standard, assessing sites against it and owning findings with operations leaders who did not report to you.
Operational technology security architecture depth sufficient to direct an architect's IEC 62443 work and critically review supplier evidence.
Direct experience with at least one federal, defense or critical infrastructure security regime from the facility side, including the assessment.
Supply chain and provenance assurance for procured equipment under country-of-origin or restricted-source rules.
Management of security engineers.
Budget ownership for assessments and external specialists.
Preferred: ISA/IEC 62443 Cybersecurity Expert, CISSP, GICSP, Physical Security Professional.
Preferred working knowledge of NIST SP 800-82, NERC CIP, NIST SP 800-171, FedRAMP, DoD impact levels and the Security of Critical Infrastructure Act.
NERC CIP program leadership.
Pre-employment screening, including background check and substance testing, may be required according to company policies.
Authorization to work in the United States, verified through E-Verify and Form I-9.

Benefits

Comp & perks

Relocation and Living-out-allowance (as applicable and based on successful candidate circumstances)
100% company paid health insurance premiums (medical, dental, and vision) for employees
75% company paid coverage for dependents
Company-paid short-term and long-term disability insurance
Voluntary life, critical illness, and accident coverage available
Health Savings Accounts (HSA) when combined with the High-Deductible Health Plan
Employee Assistance Program and wellness resources
401(k) retirement plan with company match
Paid professional development and access to financial planning and legal services
Paid Time Off (PTO) and paid holidays
Professional development to support certifications, continuing education, or role related training
Company events and team-building activities