OT Cyber Security Analyst Culham, Oxfordshire (2 days onsite per week) £50/hour Umbrella | £36.43/hour PAYE Contract until 18th December 2026 Active SC Clearance Required (or lapsed within last 12 months) A government backed organisation is hiring an OT Cyber Security Analyst with industry experience in Oil & Gas or Chemical. You must a strong background in SIEM & SOC integration coupled with OT security frameworks IEC 62443, NIST CSF, CAF, ISO 27001 to support the protection and continuous improvement of Operational Technology (OT) environments across critical infrastructure and industrial systems. This is an exciting opportunity to join a highly secure and technically advanced environment working on large-scale, mission-critical infrastructure programmes. The Role You will play a key role in implementing, operating, and improving OT cyber security controls across complex ICS and critical infrastructure environments. The role combines hands-on security engineering with governance, policy creation, monitoring, and operational support. Working closely with engineering teams, SOC providers, and managed service partners, you will help ensure OT systems remain secure, compliant, and aligned to industry frameworks such as IEC 62443, NIST CSF, CAF, and ISO 27001. Key Responsibilities Implement and maintain OT security controls across industrial environments Support OT network segmentation and secure remo...