Senior 3rd-Line Infra Engineer: Hybrid Microsoft Focus

Southampton City Council; Southampton; Hybrid; GBP 50,000 - 70,000; Full time

Benefits offered by this job

Excellent pension scheme 15.2%

Death in service benefit

25–31 days holiday

Flexible working options

Learning and development opportunities

Employee Assistance Programme

Job summary

Southampton City Council is seeking an experienced Infrastructure Engineer to provide third line (Level 3) support across a hybrid Microsoft and data‑centre environment. You will troubleshoot complex issues, drive automation, and lead lifecycle management for critical council services.

The role requires hands-on expertise with Microsoft 365, Azure, Entra ID and on‑prem AD/Windows Server, plus virtualization (VMware/Hyper‑V) and SCCM/Intune management.

Qualifications

• Proven 3rd line infrastructure experience in an enterprise environment.
• Strong experience with Microsoft 365, Exchange Online and Exchange Hybrid.
• Hands‑on experience with Azure / Entra ID and hybrid identity integration (Azure AD Connect).
• Deep understanding of on prem Active Directory and Windows Server infrastructure.
• Experience supporting Windows Server 2019–2025 and Linux servers.
• Experience administering SCCM (ConfigMgr), Intune and SCOM.
• Strong PowerShell scripting skills including automation and runbook development.
• Experience with VMware and/or Hyper‑V virtualisation.
• Experience supporting SAN storage and enterprise backup platforms.

Responsibilities

• Provide third line (Level 3) technical support and problem resolution across infrastructure platforms.
• Support and enhance a hybrid Microsoft estate including Microsoft 365, Azure, Entra ID and Exchange Hybrid.
• Administer and maintain on prem Active Directory, Azure AD Connect, DNS, DHCP and Group Policy.
• Support Windows Server infrastructure (2019–2025) and Linux server estates.
• Manage and support virtualisation platforms including VMware and Hyper-V.
• Support end‑user and server patching via SCCM (Microsoft Configuration Manager) and Intune.
• Monitor infrastructure and applications using SCOM and respond to alerts and performance issues.
• Support Citrix virtual application and desktop environments.
• Support enterprise SAN storage platforms (IBM FlashSystem or equivalent).
• Develop, maintain and run PowerShell scripts and automation, including runbooks and runbook workers.
• Produce and maintain technical documentation, runbooks and standards suitable for a local government environment.

Skills

3rd line infra

Microsoft 365

Azure

PowerShell

Tools

SCCM

Intune

SCOM

VMware

Hyper-V

Citrix

Job description

Southampton City Council is seeking an experienced Infrastructure Engineer to provide third line (Level 3) support across a hybrid Microsoft and data‑centre environment. You will troubleshoot complex issues, drive automation, and lead lifecycle management for critical council services.

The role requires hands-on expertise with Microsoft 365, Azure, Entra ID and on‑prem AD/Windows Server, plus virtualization (VMware/Hyper‑V) and SCCM/Intune management.