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Cyber Threat Investigator

2 months ago

London, Greater London, United Kingdom 55 Exec Search Full time
About the Role

We are seeking a highly skilled Cyber Threat Investigator to join our team at 55 Exec Search. As a key member of our SOC team, you will play a pivotal role in enhancing our clients' security posture.

Key Responsibilities
  • Collaborate with SOC analysts to develop and implement cutting-edge rules and analytics for SIEM and SOAR platforms.
  • Lead the development, testing, and deployment of innovative content across the monitored estate.
  • Transform playbooks from Ops teams into effective, deployable solutions.
  • Evaluate the impact of new and updated rules and analytics to inform future development.
  • Oversee the implementation and maintenance of AppGuard policies.
  • Review and approve essential documentation for releases or changes.
  • Expertise in SIEM/SOAR tools, including Microsoft Sentinel and ELK, and other technologies to detect intrusions and recommend enhancements to SOC operations.
  • Analyse security data to uncover patterns and trends.
  • Research emerging threats and vulnerabilities to stay ahead of the curve.
  • Develop and produce Use Case Rules, turning CTI information into actionable Use Cases.
  • Maintain an organized and up-to-date Use Case Library.
  • Keep comprehensive documentation to support all activities.
Requirements
  • Must be eligible to obtain UK Government Security Clearance.
  • Commercial experience working with MS Sentinel, automation playbooks, developing rules, and experience with LogicApps.
  • Experience with Microsoft Sentinel and KQL mandatory.
  • Experience with LogRhythm, ELK stack (Elastic Search, Logstash, Kibana) would be desirable.
  • Knowledge of Network Security.
  • Excellent communication and stakeholder management skills.
  • Ability to manage sensitive and confidential information.
About the Company

Our client is a pure-play cyber security consulting firm, offering a dynamic and collaborative work environment. They provide exceptional flexibility regarding remote and hybrid work arrangements, paid on-call, access to industry events, and fantastic career progression opportunities.