Staff Cybersecurity Architect - OT

Job Description

Staff Cybersecurity Architect - OT

Position Summary

The OT Security Architect helps define and implement the cybersecurity strategy, architecture, and controls that protect Operational Technology (OT), Industrial Control Systems (ICS), SCADA, and Industrial IoT (IIoT) environments.

This role works with plant operations, engineering, infrastructure, cybersecurity, and third-party vendors to secure industrial systems and align them with business, safety, reliability, and regulatory requirements. The OT Security Architect provides technical leadership for OT security architecture, site assessments, monitoring, incident response, and cybersecurity improvement initiatives across global operational sites.

This position reports to the Chief Information Security Officer and requires up to 25% travel.

Key Responsibilities

OT Security Architecture & Design

• Develop and maintain enterprise OT cybersecurity architecture standards, reference architectures, diagrams, and technical guidance aligned with ISA/IEC 62443, NIST 800-82, NIST CSF, and industry best practices.
• Design secure OT network architectures, including segmentation strategies, Purdue Model implementation, industrial DMZs, remote access controls, and zero trust principles.
• Review and approve OT system designs, modernization projects, and digital transformation initiatives.

OT Security Assessments

• Conduct OT/ICS cybersecurity assessments, including risk assessments, architecture reviews, threat modeling, and maturity evaluations.
• Identify architectural and program security gaps and develop remediation roadmaps with site leadership and engineering teams.

OT Monitoring & Detection

• Lead deployment and optimization of OT monitoring, asset discovery, and industrial threat detection platforms.
• Develop OT-specific use cases, dashboards, alerting strategies, and detection content.

Incident Response & Recovery

* Support investigatio