OT Security Architect

Team: IT

Location: US

Commitment: Contract

Workplace Type: remote

Accountabilities:

• Lead stakeholder workshops involving IT, OT, Engineering, Manufacturing, Quality, and Cybersecurity teams.
• Define OT cybersecurity strategies, architecture principles, security standards, and governance frameworks.
• Develop Security Zones and Conduits methodologies aligned with IEC 62443.
• Establish Defence-in-Depth security architectures based on the Onion Model.
• Define OT network segmentation strategies and firewall architecture standards.
• Establish secure connectivity requirements between OT environments, enterprise IT, and cloud platforms.
• Develop OT identity and access management requirements, including privileged access controls.
• Define cybersecurity requirements for OT vulnerability management and incident response.
• Ensure OT security architectures align with relevant regulations, corporate standards, and data protection requirements.
• Lead technical architecture reviews, governance forums, and documentation and sign-off processes.
• Translate complex security requirements into practical enterprise standards and reusable reference architectures.

Requirements:

• 12+ years of cybersecurity experience, including at least 7 years specifically focused on OT/ICS cybersecurity.
• Proven experience working within regulated manufacturing environments.
• Strong practical knowledge and application of IEC 62443 and NIST SP 800-82.
• Deep expertise in Industrial Control Systems and manufacturing cybersecurity.
• Experience conducting OT security risk assessments and establishing cybersecurity governance.
• Strong understanding of the Purdue Model, industrial DMZ architectures, and OT network segmentation.
• Extensive knowledge of firewall security architecture within industrial environments.
• Experience defining and implementing identity and access management requirements for OT environments.
• Knowledge and practical experience with OT incident response.
• Strong ability to lead cross-functional workshops and communicate complex security concepts to both technical and business stakeholders.
• Demonstrated ability to translate cybersecurity requirements into enterprise standards, governance frameworks, and reference architectures.
• Strong consulting, communication, stakeholder management, and technical leadership skills.

Benefits:

• Freelance / contract engagement.
• Fully remote position.
• Europe-based opportunity.
• Expected start date: October 2026.
• Full-time allocation of 40 hours per week.
• Opportunity to lead OT cybersecurity architecture for regulated manufacturing environments.
• Exposure to complex industrial cybersecurity, enterprise governance, and international stakeholder environments.