Senior OT Security Architect — Site Design & Risk (Hybrid)

EY; Hoboken (NJ); Hybrid; USD 105,000 - 192,000; Full time

Job summary

EY is seeking an experienced Security Architect – Operational Technology (OT) to provide architecture guidance and technical oversight for industrial environments. You will support site-level design reviews, network segmentation validation, secure connectivity planning, and risk-based decisions across cybersecurity, infrastructure, and site teams.

This senior role focuses on applying established standards, advising on non-standard implementations, and ensuring OT solutions are secure,

Qualifications

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

Responsibilities

• Provide site-level architecture guidance and design validation for OT environments.
• Review OT network, firewall, secure access, and monitoring designs for adherence to standards.
• Identify gaps and propose remediation options for design constraints or operational concerns.
• Support risk assessments, exception reviews, and remediation planning.
• Collaborate with engineering and operations to transition designs into steady-state operations.
• Apply Zero Trust principles to OT users, devices, and remote access use cases.

Job description

EY is seeking an experienced Security Architect – Operational Technology (OT) to provide architecture guidance and technical oversight for industrial environments. You will support site-level design reviews, network segmentation validation, secure connectivity planning, and risk-based decisions across cybersecurity, infrastructure, and site teams.

This senior role focuses on applying established standards, advising on non-standard implementations, and ensuring OT solutions are secure,