Operational Technology (OT) Cyber Security Analyst Contract

Role: Operational Technology (OT) Cyber Security Analyst
Location: Abingdon – Hybrid – 2 days onsite
Duration: Up to 18/12/2026
Rate: £50 per hour (Inside IR35)

We have an urgent opening for an OT Cyber Security Analyst who is responsible for the implementation, operation, and continuous improvement of OT security controls and monitoring capabilities across the client’s environments.

Responsibilities:
• Delivers hands-on security engineering and operational support, ensuring OT systems are protected in line with defined strategy, standards, and risk priorities.
• Provide technical and governance compliance of OT security, ensuring alignment with industry frameworks (IEC 62443, NIST CSF, CAF, ISO 27001) and with enterprise cyber security objectives.
• Hands-on implementation and the creation of governance artefacts.
• Engage with engineering teams and managed service providers (MSPs) to ensure that OT security controls are effectively implemented and sustained.

Skills:
• Previous experience working in the oil/ gas/ rail / chemical process industry
• Familiarity with SIEM/SOC integration for OT environments
• Demonstrable experience in maturing OT security within ICS or critical infrastructure environments.
• Proven ability implementing OT security strategies, policies, and standards.
• Strong knowledge of OT security frameworks and standards (IEC 62443, NIST CSF, CAF, ISO 27001).
• Experience conducting OT security risk assessments, gap analysis, and remediation planning.
• Knowledge of OT networks, segmentation, and common industrial protocols.
• Experience working with operations and engineering teams in OT environments.
• Ability to provide technical recommendations for MSPs or third-party security service providers
• Strong communication and documentation skills, particularly in policy/standards creation.

Candidates must hold either active SC or SC clearance that has lapsed within the last 12 months.