Senior Cyber Security Engineer- Dublin Ireland ( Hybrid)
My client is looking for an experienced Senior Cyber Security Engineer to play a key role in protecting and strengthening the organisation's IT environment on a Permanent Basis.
The Job:
* Monitoring, investigating, and responding to security alerts and incidents using SIEM, EDR/XDR, and Microsoft 365 security tools
* Performing root cause analysis and leading remediation activities to contain and resolve security incidents
* Managing and optimising Microsoft 365 security controls including Defender, Conditional Access, MFA, and Entra ID
* Continuously improving Microsoft Secure Score, compliance dashboards, and overall cloud security posture
* Tracking vulnerabilities, monitoring CVEs, and driving remediation through patching, configuration, or design changes
* Supporting system, server, and endpoint hardening across cloud and on-prem environments
* Assisting with patch compliance, security baselines, and configuration standards
* Operating within ITIL-aligned Incident, Problem, and Change Management processes
* Producing high-quality documentation, runbooks, and standard operating procedures
* Supporting governance, risk, and compliance activities including ISO27001 and GDPR
* Collaborating with network teams to secure firewalls, VPNs, proxies, and network traffic
* Investigating network-based security events such as abnormal traffic patterns or lateral movement
* Contributing to continual service improvement initiatives for cyber security operations
Have You:
* 5+ years' experience in cybersecurity engineering or operations
* Strong hands-on experience with Microsoft 365 security, Azure, SIEM, EDR/XDR, and vulnerability management
* Solid understanding of identity, endpoint, and network security principles
* Experience working within ITIL-based operational environments
* Ability to automate tasks using PowerShell or similar scripting tools
* Strong analytical, troubleshooting, and problem-solving skills
* Excellent written and verbal communication skills
* Relevant certifications such as CISSP, CISM, CEH, Microsoft SC/AZ, or ITIL (highly desirable)
* A proactive, adaptable mindset with a strong focus on continuous improvement
If you would like to discuss this vacancy further or to discuss your career options in confidence, please send your profile to
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