Senior OT Cyber Security Consultant

Length: 12 Month Contract

Location: UK based - can work remotely

Job Specification

About the Role
We are seeking an experienced OT Cyber consultant to join our organisation focused on improving security and resilience across our Operational Technology (OT) and Industrial Internet-of-Things (IIoT) estates. The successful candidate will work within a multi-disciplinary team, providing subject matter expertise in:

Governance reviews of new and existing systems against our Cyber Security Management System (CSMS)
Assessing legacy environments against hybrid requirements from frameworks such as IEC 62443 and NCSC CAF
Making risk-based recommendations for improvements
Contributing to the ongoing development of the CSMS, proposing new components to address evolving threats and align with industry best practices and compliance obligations.About the Candidate
The ideal candidate will have experience performing similar roles in Critical National Infrastructure (CNI) organisations. They will possess a strong background in Cyber Security and/or Automation Engineering, with substantial knowledge of the operation, maintenance, and protection of CNI OT systems.

Desired Experience

5+ years' experience in OT operation, maintenance, and security (preferably within CNI)
Performing NCSC CAF assessments
Working with IEC 62443 standards, particularly 2-1, 3-2, and 3-3 (certification preferred)
Conducting risk assessments to industry-standard frameworks
Threat modelling for OT systems
On-site assessments of industrial facilities
Patch management procedures and best practices for OT
Designing and implementing OT cybersecurity programs or initiativesDesired Knowledge

Deep knowledge of OT and IIoT-specific protocols, systems, and vendors, including OPC (Classic and UA), S7, Ethernet/IP, MQTT, and fieldbus protocols; SCADA, PLCs, EWS, radio communications
Networking expertise, including routing, switching, and firewall solutions
Secure Remote Access solutions for OT
Awareness of OT-specific risks, attack techniques, and historical cyberattacksDesired Skills

Leading OT security assessments and audits with actionable recommendations
Proficiency with OT security assessment tools
Strong communication skills, both written and verbal, to engage senior management and operational teams effectivelyIf interested, please apply and I will be in touch asap.

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