Salary: £45,000 - 50,000 per year Requirements: 5 years’ experience in a 3rd line / senior infrastructure role Strong Windows Server experience (2012–2025) Microsoft 365 & Azure administration Active Directory & Entra ID Networking fundamentals (DNS, DHCP, VPNs, VLANs) Virtualisation (Hyper-V) ITIL experience preferred Responsibilities: Provide 3rd line BAU support across multiple UK locations Lead and support infrastructure projects (server builds, M365 migrations, DR, networking) Manage Microsoft 365 environments (Exchange, SharePoint, Teams, Azure, Entra ID) Support backup and recovery solutions (Veeam / Backup Exec) Work with third-party suppliers and internal stakeholders Mentor 1st/2nd line engineers Support cyber security initiatives and infrastructure documentation Technologies: Active Directory Azure Hyper-V Support ITIL Microsoft 365 Security SharePoint Veeam Windows Office 365 Cloud More: We are a multi-site UK organisation seeking an experienced 3rd Line IT Support & Infrastructure Specialist to take ownership of our IT infrastructure and drive hybrid technology improvements across the business. Our roles offer competitive salaries, generous holiday allowances, pension schemes, health and wellbeing support, as well as opportunities for training, development, and career progression. We are located in Gillingham, Kent, and strive to provide a supportive work environment with on-site parking and employee discounts. last updated 4 week of 2026