Business Applications | 03-2-2026

Senior Security SME

Synapri are supporting a globally recognised leader in technology services and digital transformation with hiring a Senior Security SME to take ownership of advanced security engineering, escalated incident response, and threat hunting across a Microsoft-centric SIEM and XDR environment.

This is a hands-on L3 role focused on Microsoft Sentinel and the Microsoft Defender XDR suite, acting as a technical authority within the SOC and supporting the ongoing expansion of security tooling and controls.

Responsibilities:

• Engineering and optimising Microsoft Sentinel, including log onboarding, connectors, parsers, and data normalisation
• Monitoring and optimising Sentinel and Defender licensing and ingestion costs
• Designing automated response and SOAR workflows using Sentinel playbooks
• Leading complex incident investigations and advanced threat response
• Proactive threat hunting using KQL and developing custom detections aligned to MITRE ATT&CK
• Producing clear incident reports, dashboards, and technical documentation

Experience required:

• Strong hands-on experience in cybersecurity operations
• Deep expertise in Microsoft Sentinel and Microsoft Defender XDR
• Advanced KQL skills and SIEM data integration experience
• Knowledge of Azure and Microsoft 365 security services
• Scripting experience with PowerShell and/or Python

This is an excellent opportunity for a senior security professional to make real impact in a modern, evolving Microsoft security environments.

Our client operate onsite working patterns (3 days onsite). For further information please apply.

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