Job Description

Location: Newcastle (1-2 days on-site per week)
Contract Length: 12 Months
IR35 Status: Outside IR35
Sector: UK Public/Government Body
Start Date: ASAP

We're looking for an experienced OT Cyber Security Architect for a 12-month contract with a leading UK public sector organisation. This is a hands-on technical role focused on designing and implementing secure operational technology (OT) environments that support critical services.

The ideal candidate will have strong technical skills in securing OT systems, a deep understanding of cyber security frameworks, and experience engaging with a wide range of stakeholders.

• Design and deliver secure OT architecture solutions in line with public sector security standards.
• Provide hands-on technical expertise to secure operational systems that support critical services.
• Conduct risk assessments and develop robust mitigation strategies for OT environments.
• Collaborate with internal stakeholders to ensure security policies and controls are effectively implemented across OT systems.
• Support the development of long-term OT security roadmaps and strategies.
• Lead security incident response activities related to OT infrastructure.
• Ensure compliance with relevant frameworks, including NCSC guidance, IEC 62443, and the NIS Directive.
• Maintain accurate and detailed technical documentation on all security architectures and processes.

• Proven experience as an OT Cyber Security Architect or similar technical OT security role.
• Strong knowledge of operational technology environments and industrial control systems (ICS).
• Experience in implementing security controls for critical OT systems and networks.
• Understanding of cyber security principles, risk management, and threat modelling in OT settings.
• Expertise in network security, segmentation strategies, and secure remote access.
• Familiarity with UK public sector security requirements and best practices.
• Knowledge of relevant standards and regulations, including IEC 62443, NIS Directive, and ISO 27001.

• Experience working within UK government bodies or public sector organisations.
• Security certifications such as CISSP, CISM, or SABSA.
• Familiarity with cloud integration in OT environments.
• Knowledge of OT security monitoring, threat intelligence, and incident response best practices.

If you're an experienced OT Cyber Security Architect with the skills outlined above, submit your CV today for immediate consideration.

GCS is acting as an Employment Business in relation to this vacancy.