Salary: £40,000 - 70,000 per year
Requirements
- 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
Responsibilities
- 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 architecturesIdentify 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
More
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.
last updated 40 week of 2026
#J-18808-Ljbffr
OT/ICS Cyber Security Architect in Nottingham employer: IBEX RECRUITMENT LTD
Join a leading global consulting firm renowned for its exceptional cyber practices, where you will be part of a dynamic team dedicated to tackling high-stakes cyber incidents. With a strong emphasis on employee development and a collaborative work culture, this role offers unique opportunities for growth, mentorship, and impactful contributions to client success. Located in the UK, you'll benefit from working alongside over 200 specialists in a supportive environment that values innovation and excellence.
