Senior OT Security Architect for Industrial Control Systems

EY; Portland (OR); Hybrid; USD 105,000 - 192,000; Full time

Benefits offered by this job

Hybrid work model

Total rewards package

Job summary

EY seeks a Security Architect – Operational Technology to guide site-level OT security architectures and oversee design validation across industrial environments. You will provide senior technical advisory, ensure adherence to security standards, and collaborate with engineering and operations teams to enable secure, scalable OT solutions.

The role emphasizes cross-functional coordination, risk assessment, and operational readiness in industrial settings, with a focus on secure connectivity,

Qualifications

• Bachelor's degree in Cybersecurity, IT, Engineering, CS or related field preferred.
• 8–10+ years in cybersecurity, infra, networking, OT or security architecture roles.
• 5+ years supporting OT, manufacturing or critical infrastructure environments.
• Strong understanding of network security, firewalls, segmentation and secure connectivity.
• Experience reviewing designs against architecture standards and requirements.
• Excellent communication, documentation and risk-based decision skills.

Responsibilities

• Provide architecture guidance and oversight for OT environments.
• Review site-level designs for segmentation, firewall, remote access and monitoring.
• Support risk assessments, exception reviews and remediation planning.
• Ensure designs include monitoring, documentation, and escalation considerations.
• Collaborate with engineering, operations and site teams to enable secure, supportable OT solutions.

Skills

OT security architecture

Network security

Firewall policy

Zero Trust principles

Documentation

Stakeholder management

Risk assessment

Communication

Design validation

Technical advisory

Education

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

Job description

EY seeks a Security Architect – Operational Technology to guide site-level OT security architectures and oversee design validation across industrial environments. You will provide senior technical advisory, ensure adherence to security standards, and collaborate with engineering and operations teams to enable secure, scalable OT solutions.

The role emphasizes cross-functional coordination, risk assessment, and operational readiness in industrial settings, with a focus on secure connectivity,