Head of Cyber Defence & Incident Response

The Head of Cyber Defence and Incident Response owns the organisation’s cyber defence capability across a hybrid environment (mix of on‑prem and cloud platforms), ensuring effective monitoring, detection, response and recovery.

Reports directly to the CISO and leads cyber defence operations (including the MSSP) and cybersecurity incident response across the organisation.

This fits within the context of the broader organizational Crisis Management plan owned outside Technology.

A key focus is optimising security tooling (e. g., SIEM, SOAR, EDR/XDR, NDR, email security, vulnerability scanning) and driving strong vulnerability and threat management, using threat intelligence to prioritise defensive improvements.

Key Responsibilities

• Own the incident response lifecycle (prepare, detect, analyse, contain, eradicate, recover), ensuring playbooks, tooling, and decision‑making processes are in place and exercised.
• Lead and coordinate response to security incidents, acting as incident commander where required, including stakeholder communications, forensic triage, and recovery coordination.
• Manage the MSSP relationship end‑to‑end: service definition, SLAs/KPIs, escalation paths, continuous improvement plans, quality assurance, and commercial governance.
• Optimise security monitoring and response tooling working across technology teams (e. g., SIEM, SOAR, EDR/XDR, NDR, email security) including use‑case coverage, alert quality, automation, logging strategy, and operational runbooks.
• Own the vulnerability management programme (on‑prem and cloud), including scanning coverage, prioritisation, remediation SLAs, exception handling, verification, and executive reporting.
• Drive threat management by operationalising threat intelligence (internal and external) into defensive priorities: detection use cases, hardening actions, control uplift and proactive hunting themes.
• Lead continuous improvement of the defence stack: rationalise tools, tune detections, improve signal quality, reduce noise, and expand automation to accelerate triage and response.
• Establish and run a threat hunting programme using hypothesis‑driven approaches, telemetry coverage mapping, and lessons learned from incidents and red‑team activity.
• Run regular tabletop exercises and simulations (including ransomware and cloud compromise scenarios), ensuring roles, escalation paths, and technical procedures are validated and improved.

Own incident response governance: severity model, on‑call and escalation processes, evidence handling, case management, and alignment to legal/regulatory obligations.

• Define and report cyber defence metrics (e. g., MTTD/MTTR, alert volumes and precision, incident trends, vuln remediation performance, control coverage), presenting insights and recommendations to senior leadership.
• Lead post‑incident reviews and root cause analysis, ensuring lessons learned translate into measurable improvements (detections, hardening, identity controls, backups, segmentation, and training).
• Support business continuity and crisis management processes during cyber events, contributing to executive updates and coordinated communications with Legal/Privacy and other stakeholders.
• Maintain and improve incident response documentation and readiness (playbooks, runbooks, contact trees), and ensure training is delivered for technical responders and business stakehol
• Communicate cyber risk and active incidents clearly to technical and non‑technical audiences, including concise executive briefings and after‑action summaries.
• Strong experience leading cyber defence/SOC and incident response, including major incident coordination, investigation, containment and recovery.
• Hands‑on understanding of detection and response tooling and concepts (SIEM, SOAR, EDR/XDR, NDR, email security, log pipelines), including tuning, use‑case engineering and operational workflows.
• Proven experience managing an MSSP or outsourced SOC capability, including SLAs/KPIs, service governance, escalations, and continuous improvement.
• Strong experience running vulnerability management and threat management programmes, including prioritisation based on exploitability, exposure, and business impact.
• Knowledge of incident response processes, digital forensics fundamentals, evidence handling, and working with legal/privacy and external forensic partners.
• Experience defending hybrid environments (on‑prem and cloud), including identity signals, network telemetry, endpoint visibility, and cloud‑native security monitoring.
• Ability to operate under pressure and lead cross‑functional teams through high‑severity incidents, communicating clearly and making timely risk‑based decisions.
• Fluent in English – excellent written and verbal communication skills, including producing clear architecture guidance, standards, and security design documentation.

Desirable

• Certifications such as GCIH, GCIA, GNFA, CISSP, CISM, or equivalent …
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