Senior Security Incident Responder

Why we're hiring:

The Senior Security Incident Responder is a lead technical authority for incident response execution, responsible for handling the most complex, high-impact, and business-critical security incidents across WPP. The role does not have line management responsibility; people management remains with the Security Incident Management Lead.

What you'll be doing:

• Advanced Incident Detection, Analysis & Response.
• Lead investigations for high-severity and complex security incidents.
• Perform deep technical analysis using SIEM, SOAR, EDR/XDR, identity, email, and cloud telemetry.
• Execute and oversee containment, eradication, and recovery actions.
• Serve as the primary escalation point for complex incidents.
• Coordinate with Legal, Privacy, Risk, Technology Operations, and agency teams.
• Provide clear technical updates to senior stakeholders.
• Lead forensic evidence collection, preservation, and analysis.
• Ensure documentation and artefacts are audit-ready.
• Support external forensic or law-enforcement engagement when required.
• Quality Assurance, Playbook Maturity & Continuous Improvement
• Improve incident response playbooks and SOPs.
• Lead or support post-incident reviews and ensure actions are tracked.
• Mentor Security Incident Responders without line management responsibility.
• Partner with Detection Engineering, Threat Intelligence, Automation, and VM teams.
• Identify opportunities for automation and response optimisation.

What you'll need:

• Extensive hands-on experience responding to enterprise-scale security incidents.
• Deep technical expertise across SIEM, SOAR, EDR/XDR, identity, email, and cloud platforms.
• Strong forensic, investigation, and root cause analysis skills.
• Ability to operate calmly under pressure and communicate clearly.
• Experience acting as incident commander or senior escalation point.
• Familiarity with MITRE ATT&CK and threat-led response.
• Relevant certifications (GCIH, GCFA, GCED, CISSP).
• Fluent in written and spoken English

Who you are:

You're open:We are inclusive and collaborative; we encourage the free exchange of ideas; we respect and celebrate diverse views. We are open-minded: to new ideas, new partnerships, new ways of working.

You're optimistic:We believe in the power of creativity, technology and talent to create brighter futures or our people, our clients and our communities. We approach all that we do with conviction: to try the new and to seek the unexpected.

You're extraordinary: we are stronger together: through collaboration we achieve the amazing. We are creative leaders and pioneers of our industry; we provide extraordinary every day.

What we'll give you:

Passionate, inspired people We aim to create a culture in which people can do extraordinary work.

Scale and opportunity We offer the opportunity to create, influence and complete projects at a scale that is unparalleled in the industry.

Challenging and stimulating work Unique work and the opportunity to join a group of creative problem solvers. Are you up for the challenge?

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