Senior Detection & Response Engineer, Cyber Defense
We are seeking a Senior Detection & Response Engineer, Cyber Defense to strengthen and mature our security operations capability. This is a hands-on role for an experienced cyber security professional who can identify emerging threats, develop effective detection content and lead the response to complex security incidents across a diverse technology environment.
You will design, build and continuously improve detections across cloud, endpoint, identity, network and application platforms. Working with security operations and engineering teams, you will translate threat intelligence and adversary behaviours into practical use cases, analytics and alerting within SIEM, EDR and related security tooling. You will tune rules to improve accuracy, reduce false positives and ensure detections are measurable, maintainable and aligned with current risks.
The role will involve investigating and managing high-severity incidents, coordinating containment and eradication activities, and producing clear technical and executive-level updates. You will lead or support threat hunting exercises, forensic investigations and post-incident reviews, ensuring lessons learned are converted into improvements across controls, playbooks and operating procedures. You will also contribute to automation, playbook development and the ongoing development of incident response processes, metrics and reporting.
We are looking for significant experience in cyber defence, security engineering, incident response or a closely related discipline, together with a strong understanding of the MITRE ATT&CK framework and common attack techniques. You should be confident working with log analysis, scripting and query languages such as KQL, SPL or equivalent, and have practical experience with SIEM, EDR, cloud security and identity technologies. Experience leading incidents, threat hunts or detection engineering programmes is highly desirable.
Excellent communication and collaboration skills are essential, as you will work with technical teams, stakeholders and third-party specialists. Relevant professional certifications, such as GIAC, CISSP, CISM or equivalent experience, are welcomed. You will bring sound judgement, curiosity and a continuous improvement mindset, along with the ability to prioritise effectively in a fast-moving environment.
Senior Detection & Response Engineer, Cyber Defense
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