Job Title: Cyber Security Analyst - SC
Location: Culham, Oxfordshire 2 days/week on site)
Contract Duration: 18/12/26
Daily Rate: £ 50/hr (Umbrella – Maximum)
IR35 Status: Inside IR35
Security Clearance: SC or lapsed within the last 12 months

The OT Cyber Security Analyst is responsible for the implementation, operation, and continuous improvement of OT security controls and monitoring capabilities across environments. The role delivers hands-on security engineering and operational support, ensuring OT systems are protected in line with defined strategy, standards, and risk priorities. This includes implementing an OT Security Strategy, contributing to the development of policies and standards, and apply appropriate security controls across OT environments.
You will 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.
The role will combine hands-on implementation and the creation of governance artefacts. You will also engage with engineering teams and managed service providers (MSPs) to ensure that OT security controls are effectively implemented and sustained. Experience with SIEM/SOC integration is valuable and considered desirable.
Essential:
• 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 implement 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.
Desirable:
• Experience with OT asset discovery, monitoring, and security tool deployment.
• Exposure to regulatory compliance in critical infrastructure (e.g., NIS Directive, UK CAF).
• Knowledge of project and service delivery lifecycles and ITSM controls.
Disability Confident
As a member of the disability confident scheme, CLIENT guarantees to interview all candidates who have a disability and who meet all the essential criteria for the vacancy. In cases where we have a high volume of candidates who have a disability who meet all the essential criteria, we will interview the best candidates from within that group.
Armed Forces Covenant   
CLIENT is proud to support the Armed Forces Covenant and as such, we guarantee to interview all veterans or spouses / partners of military personnel who meet all the essential criteria for the vacancy. In cases where we have a high volume of ex-military candidates / military spouses or partners, who meet all of the essential criteria, we will interview the best candidates from within that group.

If you qualify for the above, please notify us on 0121 794 8181.

We will be in touch to discuss your suitability and arrange your Guaranteed Interview.
Should you require reasonable adjustments at any point during the recruitment process or if there is a more accessible way for us to communicate, please do let me know.

To apply for this role please submit your latest CV or contact Aspect Resources on 0121 794 8181