Platform & Cyber Security Specialist

Overview

In this role you will strengthen the Council’s cyber security posture while delivering secure, resilient Microsoft platform services in a cloud-first environment. You will work within the ICT Services team to maintain Hybrid Exchange, AD, Entra ID, Defender and Sentinel, and to automate admin tasks with PowerShell. The role supports modernisation initiatives, security projects and governance, ensuring compliant, high-availability services for critical council functions. You’ll collaborate across teams and with suppliers to drive operational excellence and security best practices.

Responsibilities

• Administer and support Hybrid Exchange environments (Exchange Online and on-prem)
• Manage Active Directory, Group Policy, DNS, DHCP, domains, trusts, replication, and certificate services
• Oversight of Microsoft Entra ID including Conditional Access, MFA, SSPR, PIM, and identity lifecycle
• Operate Microsoft 365 Defender and Sentinel to monitor, investigate, and respond to threats
• Automate operational processes and enhance efficiency using PowerShell
• Oversee Microsoft Intune and endpoint management (Windows, iOS, Android) including security/compliance policies
• Apply cyber security principles and Microsoft security best practices across platforms
• Understand VPNs, SSL certificates, and core networking concepts (DNS, DHCP, Layer 3)
• Engage in ITIL-based service management (incident, problem, change) and collaborate with stakeholders
• Support security and infrastructure modernisation projects and ensure governance/compliance

Key requirements

• Experience administering Hybrid Exchange environments (Exchange Online and on-prem)
• Strong Active Directory management experience (GPO, DNS, DHCP, domains, trusts, replication, certificates)
• Proficiency with Microsoft Entra ID (Conditional Access, MFA, SSPR, PIM, identity lifecycle)
• Experience with Microsoft 365 Defender and Sentinel for threat monitoring and response
• Proficient PowerShell scripting and automation for operational efficiency
• Familiarity with Microsoft Intune and endpoint management across multiple OS
• Solid understanding of cyber security principles and Microsoft security best practices
• Knowledge of VPN technologies, SSL certificates, and core networking concepts
• Experience in ITIL-based service management (incidents, problems, changes)
• Collaborative, customer-focused team player with strong communication and prioritisation skills

• Collaborative
• Customer-focused
• Effective communicator
• Hybrid Exchange administration (Exchange Online/on-prem)
• Active Directory management and Group Policy
• Microsoft Entra ID (CA, MFA, SSPR, PIM)

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