Senior Infosec Manager - Perm - 3rd party Assurance

City of London, Greater London

Senior Infosec Manager - Perm - 3rd party Assurance

Location: London (Hybrid: 2 days/week in office)
Permanent/Full-time

A leading international law and professional services firm is seeking a Senior Manager to lead its Third Party Assurance function within the Information Security team. This is a leadership position, reporting to the Chief Information Security Officer (CISO), and is critical for maintaining ISO 27001 certification and delivering excellence in supplier assurance and client due diligence. You will manage a small team and build best-in-class capability across all security domains.

Key Responsibilities
  • Champion and embed the Supplier Assurance Security Model
  • Produce management information for the CISO, including trends, process gaps, and recommendations
  • Manage client requests and due diligence questionnaires professionally and efficiently
  • Lead Supplier Assurance governance forums
  • Tailor and manage the Third-Party Security Schedule, including supplier negotiations
  • Negotiate robust security clauses in contracts
  • Provide evidence for audits and ISO 27001 certification
  • Support other internal and external audits as required
  • Build, coach, and motivate a high-performance team
Requirements:
  • Solid experience as a leader in Information Security Supplier Assurance
  • Previous experience in medium to large legal or financial services organisations
  • Proven understanding of all information security domains
  • Cyber security certifications (CISSP, CISM, ISO 27001) are desirable
  • Strong people leadership and management skills, including coaching and performance enhancement
  • Excellent negotiation, written, and verbal communication skills
You'll be part of a globally mandated Information Security team, trusted and empowered to deliver, with a culture that values diversity and professional growth. The team manages security across ten offices worldwide, covering Security Operations, GRC, Identity, and third-party security.

Apply with an up-to-date CV to learn more!

Guidant, Carbon60, Lorien & SRG - The Impellam Group Portfolio are acting as an Employment Business in relation to this vacancy.

Posted 2025-12-03

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