Senior Microsoft Security Specialist

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.
  Please apply for more details