Head of Information Security

Company: Sanderson
Apply for the Head of Information Security
Location: London
Job Description:

Head of Information Security (Contract)

Rate: Negotiable based on experience circa £850 – £1,000 per day (Inside IR35 – total to umbrella)

Duration: 3 months initial

Location: London (2 days onsite per week)

Overview:

We’re supporting a major organisation undergoing a critical phase of security uplift and transformation who’re looking for an experienced Head of Information Security to take immediate ownership of their security function.

This is a hands-on leadership role suited to a contractor who can quickly assess the current landscape, stabilise risk and deliver a clear, actionable security roadmap. You’ll be expected to operate at both strategic and operational levels, engaging senior stakeholders while driving tangible security improvements at pace.

Key Responsibilities:

  • Rapidly assess current security posture, risks and gaps across the organisation
  • Define and implement a pragmatic, business aligned security roadmap
  • Lead GRC, security operations and architecture oversight
  • Drive improvements across identity & access management, cloud security and incident response
  • Act as the senior escalation point for security incidents and risk decisions
  • Engage with C-suite and board stakeholders, providing clear, commercially focused risk insight
  • Support or lead audit and compliance activities (ISO 27001, NIST, GDPR)
  • Stabilise and where needed, restructure internal teams and third-party suppliers

Skills & Experience:

  • Proven experience operating as a Head of Security / Security Director / Interim CISO
  • Strong track record delivering security transformation or uplift in contract roles
  • Ability to hit the ground running in complex, ambiguous environments
  • Deep understanding of security frameworks (ISO 27001, NIST, CIS)
  • Experience across cloud environments (Azure/AWS), enterprise architecture and cyber operations
  • Strong stakeholder management – comfortable challenging and influencing at exec level
  • Background in regulated environments (Financial Services, Insurance, etc.) highly desirable

Posted: April 25th, 2026