Senior Security Incident Responder

Responsibilities

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.
• Act as technical incident commander when delegated.

Escalation Handling & Stakeholder Coordination

• 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.

Forensics, Evidence Handling & Assurance

• 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

• Review incident handling quality and identify process or tooling gaps.
• Improve incident response playbooks and SOPs.
• Lead or support post-incident reviews and ensure actions are tracked.

Technical Leadership & Capability Uplift

• 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.

Requirements

• 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.

Preferred

• Experience acting as incident commander or senior escalation point.
• Familiarity with MITRE ATT&CK and threat-led response.
• Relevant certifications (GCIH, GCFA, GCED, CISSP).

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.

Essential

Extensive hands-on experience responding to enterprise-scale security incidents.

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 approach all that we do with confidence: 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 champion a culture of people that do extraordinary work
• Scale and opportunity we offer the opportunity to create, influence and deliver 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.

#LI-Hybrid

We believe the best work happens when we're together, fostering creativity, collaboration, and connection. That's why we’ve adopted a hybrid approach, with teams in the office around four days a week. If you require accommodations or flexibility, please discuss this with the hiring team during the interview process.

WPP is an equal opportunity employer and considers applicants for all positions without discrimination or regard to particular characteristics. We are committed to fostering a culture of respect in which everyone feels they belong and has the same opportunities to progress in their careers.

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