Senior Infrastructure Engineer

PMUK’s Information Systems department is seeking an experienced Senior Infrastructure & Microsoft 365 Engineer to lead core IT services and enterprise infrastructure. This hands‑on technical leadership role combines deep expertise in Microsoft 365, Azure, security, and infrastructure with responsibility for strategy, governance and service delivery.

• Act as the technical lead for infrastructure and Microsoft 365 services
• Define and deliver the infrastructure and modern workplace strategy
• Provide mentorship and escalation support to technical teams
• Ensure systems are secure, resilient, scalable and future‑ready

• Own and manage the Microsoft 365 tenant (Global Administrator level)
• Administer core services, including:
  • Microsoft Entra  (Azure AD) – identity and access management
  • Microsoft Defender Suite – Endpoint, Identity, Office 365, Cloud Apps
  • Microsoft Purview – data governance, DLP, retention and eDiscovery
• Implement and maintain security, compliance and governance controls
• Manage Conditional Access, MFA and privileged access strategies

• Lead development and governance of Power Automate workflows and Power Apps solutions
• Drive adoption of low‑code automation across the business
• Implement standards, controls and scalable automation frameworks

• Lead migration from SharePoint on‑premise to SharePoint Online
• Define migration strategies, including content rationalisation and metadata and taxonomy design
• Promote modern collaboration tools, including Microsoft Teams, One Drive and SharePoint Online

• Establish and maintain data governance frameworks
• Implement metadata tagging and classification and data lifecycle and retention policies
• Ensure compliance with GDPR and Data Protection requirements
• Support data audits, DPIAs and data sharing agreements

• Network Infrastructure: LAN/WAN, switching, firewalls and connectivity
• Server & Cloud Platforms:
  Hybrid environments (on‑premise and Azure), virtualization (Hyper‑V)
• End User & Device Management:
  Microsoft Intune / Endpoint Manager, Autopilot and device lifecycle management
• Telephony & Communications:
  VoIP and unified communications platforms
• Physical Security Systems: CCTV and access control systems

• Design and enhance enterprise security architecture
• Contribute to Zero Trust strategy and implementation
• Lead improvements across Microsoft Sentinel, Microsoft Defender ecosystem and identity and access controls
• Support security reviews, audits and risk mitigation

• Provide 3rd line support and escalation
• Oversee system upgrades, patching and maintenance
• Maintain clear and accurate technical documentation
• Ensure successful transition of projects into operational support

• Lead full lifecycle delivery:
  Discovery, Design, Build, Test, Deploy
• Ensure quality, risk management and timely delivery
• Drive standardisation, automation (Power Shell) and continuous service improvement

• Act as a visible technical leader across IT and the business
• Mentor and develop team members
• Work closely with stakeholders to align IT with business needs
• Promote knowledge sharing and continuous learning

• Degree in Computer Science or a related field (or equivalent experience)
• Proven experience in a senior/lead infrastructure or M365 role
• Strong expertise in Microsoft 365 (including Defender & Purview) and Microsoft Entra  (Azure AD)
• Hands‑on experience with Power Platform (Power Apps & Power Automate) and SharePoint migrations (on‑prem → online)
• Strong knowledge of hybrid infrastructure (Azure + on‑prem), networking and firewalls, virtualization (Hyper‑V) and endpoint management (Intune)
• Experience implementing data governance and compliance frameworks
• Advanced English (B2 or equivalent) if required for visa application; assessed on a case‑by‑case basis

• Power Shell scripting and automation
• Experience with Microsoft Intune and Autopilot, Azure Virtual…