Interim Third Party Security Risk Manager, London

I’m looking for a Third Party / Supplier Assurance Security Manager to support a major FTSE100 through a large cyber and technology transformation.

You’ll lead supplier security assessments, ensuring third parties meet the organisation’s security, compliance, and risk requirements. This includes reviewing supplier controls, completing due‑diligence assessments, managing remediation actions, and working closely with procurement, legal, and internal security teams to maintain strong supplier governance across cloud, SaaS, and critical technology services.

• Lead 3rd‑party risk assessments and ongoing supplier assurance
• Review supplier controls against ISO 27001, SOC 2, NIST, and cloud security standards
• Produce clear risk ratings, findings, and remediation plans
• Support contract reviews with security requirements & SLAs
• Maintain supplier risk logs and support continuous monitoring activities

Hybrid – London or Yorkshire

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