Cyber Security Assurance Specialist

Cyber Security Assurance Specialist

Culham (2/3 days onsite)
£55/hour Umbrella. £440/day.
Contract until 18/12/2026
SC Clearance required (active or lapsed within 24 months)
IR35: In Scope

We're supporting a major UK public sector organisation on a key hire within their cyber security function. This is a cross-functional assurance role combining both advisory and hands-on responsibilities across IT and OT environments.

You'll play a critical role in strengthening cyber defence posture, driving security assurance activities, and embedding secure-by-design principles across infrastructure, platforms, and services.

Key Responsibilities

• Lead security assurance activities across cloud, infrastructure, applications, and OT systems
• Conduct risk assessments and maintain enterprise risk registers
• Review and advise on security architecture and design patterns
• Support vulnerability management and remediation planning
• Embed security controls aligned to organisational risk appetite
• Support internal audits and external compliance (eg ISO 27001, CAF, Cyber Essentials)
• Collaborate with technical and non-technical stakeholders to communicate risk effectively