We're working with a large organisation undergoing significant cyber and digital transformation to hire a Cyber Security Architect focused on Operational Technology (OT) .
This role sits within a dedicated Security Architecture function and is specifically aligned to securing industrial and operational systems. The focus is on designing and assuring cyber security controls across complex OT environments, ensuring operational resilience, regulatory alignment, and risk mitigation from the outset.
This is not an enterprise IT architecture role — it is centred on industrial control systems, operational networks, and IT/OT convergence.
What you'll do
Define and implement security architecture principles across OT / ICS environments.
Embed secure-by-design controls into industrial systems and operational technology platforms.
Lead design assurance across OT network segmentation, zone and conduit modelling, and industrial DMZ architectures.
Identify architectural gaps within existing OT estates and define pragmatic remediation roadmaps.
Align OT security architecture to recognised frameworks and regulatory requirements.
Collaborate with OT engineers, operational stakeholders, and cyber teams to balance safety, availability, and security.
Provide architectural guidance across IT/OT convergence programmes.
What we're looking for
Proven experience securing Operational Technology (OT) or Industrial Control Systems (ICS) environments.
Strong understanding of IT/OT convergence and securing legacy or brownfield industrial estates.
Knowledge of recognised OT security standards such as IEC 62443 (ISA-99), NIST SP 800-82 , and application of the Purdue Model .
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OT/ICS Cyber Security Architect in Lancing employer: IBEX RECRUITMENT
As an Operational Security Team Lead in a prestigious Critical National Infrastructure organisation, you will thrive in a dynamic work culture that prioritises security and resilience. The company offers exceptional employee growth opportunities, including professional development and training, while fostering a collaborative environment where your contributions directly impact national security. Located in a highly regulated sector, this role not only provides meaningful work but also the chance to be part of a team dedicated to safeguarding vital systems.
