Senior OT Security Architect — Industrial Control Systems

EY; Houston (TX); Hybrid; USD 104,800 - 192,200; Full time

Benefits offered by this job

Hybrid work model

Total rewards package (medical, dental

Pension/401(k) plan

Job summary

EY seeks a Senior OT Security Architect to provide architecture guidance and technical oversight for industrial OT environments. You will support site-level design reviews, network segmentation validation, and secure connectivity planning while ensuring adherence to established security standards and design patterns.

The role interfaces with engineering, operations, and cybersecurity teams to drive secure, maintainable OT solutions.

Qualifications

• Bachelor's degree or higher in a related field.
• 8–10+ years in cybersecurity, infrastructure, networking, or security architecture.
• 5+ years supporting OT/industrial environments.
• Strong knowledge of network security, segmentation, remote access, and infrastructure support.

Responsibilities

• Adhere to OT cybersecurity standards and approved design patterns at site level.
• Review OT network, firewall, secure access, monitoring, and infrastructure designs for alignment with standards.
• Support site design reviews, validation of segmentation, and secure connectivity plans.
• Provide risk assessments, exception analyses, and remediation guidance; document outcomes.

Skills

OT security

Architecture

Networking

Risk assessment

Stakeholder management

Documentation

Education

Bachelor's degree in Cybersecurity/IT/Engineering/CS

Tools

Firewall policy review

OT monitoring platforms

Industrial networking tools

Job description

EY seeks a Senior OT Security Architect to provide architecture guidance and technical oversight for industrial OT environments. You will support site-level design reviews, network segmentation validation, and secure connectivity planning while ensuring adherence to established security standards and design patterns.

The role interfaces with engineering, operations, and cybersecurity teams to drive secure, maintainable OT solutions.