IT & Software

Lead Systems Administrator Windows - Non-Profit

Client Server

London · Greater London · United Kingdom

Overview

In this Lead Systems Administrator role you own the IT infrastructure for a charity, overseeing Microsoft 365, security, and devices across offices and warehouses. You will lead a small team while delivering technical solutions and guidance to stakeholders. The role combines hands-on delivery with people leadership and process improvement, including security hardening and disaster recovery. You’ll work to enable safe AI tool adoption and robust IT services.

Pay / Benefits
  • Salary up to 50k
  • 25 days holiday (rising to 30)
  • Birthday off
  • Employee Assistance Programme with 24h GP helpline
  • Cycle to work scheme
  • Gym and retail discount platform
Responsibilities
  • Manage and secure the organization's Microsoft 365 environment (Entra ID, Intune, SharePoint, Teams)
  • Oversee Windows and Android devices across sites
  • Troubleshoot network issues and manage external suppliers
  • Lead security tooling and practices (Defender, Purview; Cyber Essentials)
  • Coordinate backup, disaster recovery, and vulnerability management
  • Serve as technical escalation point and drive automation of processes
  • Maintain technical documentation and support skill development within the team
  • Support safe adoption of AI tools (e.g., Microsoft Copilot) with proper access controls
Key requirements
  • Strong hands-on experience with Microsoft 365 suite and Entra ID
  • Experience managing Windows and Android devices across multiple sites
  • Networking and troubleshooting skills; supplier management
  • Experience with Microsoft security tools (Defender, Purview)
  • Understanding of backup, disaster recovery, vulnerability management, and data protection
  • Experience leading or developing a small technical team
  • Security qualification (CompTIA Security+, CISSP, or CISM) is preferred
  • Proactive, methodical approach
  • Strong communication and ability to explain technical issues clearly
  • Team leadership andPeople development
  • Microsoft 365 administration (Entra ID, Intune, SharePoint, Teams)
  • Windows device management
  • Android device management

Reference: WJ-747_31051971

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