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# OT/ICS Cyber Security Architect

- **Company:** IBEX RECRUITMENT LTD
- **Location:** Warrington, United Kingdom
- **Salary:** £40,000 - £70,000
- **Contract:** Permanent contract
- **Skills:** Cyber Security, Ethernet, Modbus, Network Segmentation, Process Control Systems, Operational Systems
- **Published:** November 12, 2026
- **Apply:** https://www.adzuna.co.uk/jobs/details/5961624499

## About the Role

* 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
 * Experience designing secure segmentation models (zones and conduits), industrial firewalls, and secure remote access solutions
 * Familiarity with industrial protocols such as Modbus, DNP3, Ethernet/IP, OPC/UA, and associated security risks
 * Experience operating in regulated, safety-critical, or high-availability environments
 * Ability to translate technical risk into clear architectural decisions for engineering and operational audiences

## Description

* 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

Technologies:

 * Architect
 * Ethernet
 * Network
 * Security, We are a large organization undergoing significant cyber and digital transformation and are seeking a Cyber Security Architect focused on Operational Technology (OT). This strategic, high-impact role centers on securing industrial control systems and operational networks, ensuring operational resilience and risk mitigation. We offer 30 days holiday plus bank holidays, flexible leave options, family-friendly policies, and a generous employer pension contribution. This permanent position is based in the North West of England, and we welcome candidates from any industry with relevant OT/ICS experience.