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Lorien

Information Security Manager

Hybrid

London, United kingdom

Freelance

03-12-2025

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Skills

Communication Leadership Stakeholder Management Negotiation

Job Specifications

Info sec manager - Third Assurance - 12‑Month FTC

Location: London (Hybrid: ~2 days/week on‑site)

Fixed term contract duration: 12month (annual salary)

A global law and professional service firm is seeking an experienced Information Security professional to lead and embed a robust Supplier/Third‑Party Assurance model, ensuring the firm maintains and evidences controls for ISO 27001 and client audits. You’ll report into the Senior Security Manager, collaborate with stakeholders across Security Operations, GRC and Identity, and contribute to globally consistent practices.

Responsibilities:

Own & champion the Supplier Assurance Security Model, working closely with senior security leadership.
Produce MI for the CISO (trends, process gaps, recommendations) to drive continuous improvement.
Manage client requests and due diligence questionnaires, escalating complex items appropriately
Run governance forums for Supplier Assurance and track actions to closure.
Maintain the Third‑Party Security Schedule and support supplier negotiations on security requirements.
Edit/agree straightforward security clauses in contracts to ensure robustness.
Provide audit evidence to support ISO 27001 certification from a supplier assurance perspective.

Requirements:

Be immediately available or 1 week's notice (maximum)
Solid experience in Leadership Information Security Supplier/Third‑Party Assurance roles.
Background in legal or financial services environments (medium to large organisations).
Broad understanding across security domains (Ops, GRC, Identity, third‑party security).
Desirable: CISSP, CISM, ISO 27001 certifications.
Strong stakeholder management, negotiation, and written/verbal communication skills.
Proven ability to prioritise and deliver to deadlines in a fast‑paced environment.

If you're interested, please apply with an updated CV.

About the Company

Lorien is a technology, transformation and telecom talent solutions specialist. We combine tech expertise with the scope, depth and breadth of large-scale talent solutions. Driven by both clients and candidates, covering Europe and the US, we work with all sectors, sizes and tech needs – from start-up to established, tech companies and those who use tech to propel them further - we work with them all. Our unique position in the market means we have the insight to create tailored solutions – keeping our clients ahead of t... Know more