Senior OT Security Architect for Industrial IoT

EY; Milwaukee (WI); On-site; USD 104,800 - 192,200; Full time

Benefits offered by this job

Hybrid work model

Total rewards package

Job summary

EY seeks a Senior OT Security Architect to provide architecture guidance and oversight for industrial environments. The role focuses on site-level validation of segmentation, secure connectivity, and design compliance, while advising on risk and exceptions.

Collaboration spans cybersecurity, operations, and engineering to ensure secure, maintainable OT solutions. The position emphasizes alignment with established standards, design patterns, and operational readiness, with a hybrid work model and

Qualifications

• Bachelor's degree in a relevant field.
• 8–10+ years in cybersecurity, infrastructure, networking, or security architecture.
• 5+ years supporting OT/industrial environments.
• Strong communication, documentation, and risk-based decision making.
• Experience reviewing designs against architecture standards.

Responsibilities

• Apply OT cybersecurity standards and approved design patterns at site level.
• Review OT network, firewall, secure access, and monitoring designs for alignment.
• Identify gaps and recommend remediation options.
• Support architecture reviews for site implementations and changes.
• Validate segmentation, zoning, and remote access expectations with operations teams.
• Provide risk assessments and input for exception reviews and remediation planning.
• Develop guidance and patterns from site delivery experience.

Skills

Network security

Firewalls

Segmentation

Secure connectivity

Remote access

Infrastructure support

Education

Bachelor's degree in Cybersecurity, Information Technology, Engineering, Computer Science, or related field

Job description

EY seeks a Senior OT Security Architect to provide architecture guidance and oversight for industrial environments. The role focuses on site-level validation of segmentation, secure connectivity, and design compliance, while advising on risk and exceptions.

Collaboration spans cybersecurity, operations, and engineering to ensure secure, maintainable OT solutions. The position emphasizes alignment with established standards, design patterns, and operational readiness, with a hybrid work model and