We are seeking a proactive and technically skilled IT Systems Administrator to manage and support our Microsoft 365 environment across three tenants, covering approximately 25 users. This is a hands-on role that combines systems administration, user support, security, and infrastructure improvement. This is a senior level role, incumbent is expected to Improve the environment and lead new initiatives, primarily for M365 environments and take responsibility for organisation-wide infrastructure Responsibilities * Administer Microsoft 365 services including Exchange Online, Teams, SharePoint, and Entra ID across multiple tenants. * Implement, configure & Manage endpoint devices using Microsoft Intune, including configuration, compliance, and lifecycle planning. * Oversee IT asset management: tracking, valuation, depreciation, and upgrade/replacement planning. * Handle onboarding and offboarding processes for employees, ensuring smooth IT transitions. * Monitor and respond to security threats using Microsoft Defender and Intune; manage malware and attack mitigation. * Provide first-line user support and manage the internal IT helpdesk, including reporting and ticket resolution. * Maintain and optimise internet and Wi-Fi infrastructure, including Quality of Service (QoS) management. * Support special projects and company-wide initiatives involving IT systems or infrastructure. * Develop working relationshi...