La Fosse
Senior IT Security Analyst
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Role Overview
This role is a senior technical contributor within a global cyber security team, owning selected cyber security domains end-to-end and driving practical improvements to reduce cyber risk.
Responsibilities
The role combines analyst and engineering responsibilities across security tools, vulnerability and exposure management, web and email security, incident response, and threat-informed remediation.
The role works closely with infrastructure, cloud, application, identity, and business teams to identify security issues, prioritize actions based on real-world attacker behavior, and deliver measurable improvements to the cyber defense posture.
Requirements
The successful candidate can demonstrate that they have:
- Operated as a senior technical contributor in cyber or infrastructure security.
- Owned or materially contributed to one or more cyber security domains, such as endpoint security, vulnerability management, identity security, network security, incident response, or Microsoft 365 / Azure security.
- Used CrowdStrike or equivalent EDR tooling to investigate detections, support incident response, and improve endpoint security controls.
- Used Zscaler ZIA/ZPA or equivalent secure web gateway, private access, zero trust, or network access security technologies.
- Performed vulnerability assessment, exposure analysis, or remediation prioritization across enterprise technology environments.
- Applied threat intelligence, MITRE ATT&CK, or exploitation-based evidence to prioritize mitigations.
- Supported or led cyber security investigations and incident response activities.
- Collaborated with infrastructure, cloud, application, identity, and business teams to deliver security improvements.
- Used scripting, queries, automation, or data analysis to improve security outcomes.
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Skills and Experience
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You will need:
- Strong hands-on experience administering, tuning, and operationalising CrowdStrike Falcon, including endpoint protection, EDR investigations, detection analysis, and response workflows.
- Strong hands-on experience administering and supporting Zscaler ZIA and ZPA, including policy design, access control, traffic analysis, and security troubleshooting.
- Practical experience leading or supporting vulnerability and exposure management programs, including vulnerability analysis, risk-based prioritization, remediation tracking, and validation of control effectiveness.
- Strong knowledge of real-world attacker tactics, techniques, and procedures (TTPs) and the ability to translate threat intelligence, attack paths, and exploitation trends into actionable security improvements.
- Experience conducting security investigations and incident response activities, including alert triage, root cause analysis, containment, remediation, and lessons learned.
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