> Markdown version of [/jobs/ext/3903823-3rd-line-infrastructure-support-analyst-windows](https://www.wearedevelopers.com/jobs/ext/3903823-3rd-line-infrastructure-support-analyst-windows). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # 3rd Line Infrastructure Support Analyst - Windows - **Company:** Modis - **Location:** Nottingham, UK - **Experience:** Experienced - **Salary:** £45,000.0 - £52,000.0 - **Contract:** Permanent contract - **Skills:** Microsoft Windows, Active Directory, User Authentication, Microsoft Azure, Dynamic Host Configuration Protocol, Domain Name System (DNS), Hyper-V, Identity and Access Management, Microsoft Software, Windows Servers, Windows PowerShell, Azure Active Directory, Workspace ONE, Hyperconverged Infrastructure, Microsoft InTune, SC Clearance, Vmware - **Published:** October 24, 2026 - **Apply:** https://www.reed.co.uk/jobs/3rd-line-infrastructure-support-analyst-windows/57488362 ## About the Role Are you an experienced infrastructure professional with a passion for solving complex technical challenges? We're working with a leading technology services organisation that supports critical environments across enterprise and public sector customers. Due to continued growth, multiple opportunities are available for experienced 3rd Line Infrastructure Support Analysts to join a highly skilled support team delivering services within secure, large-scale hybrid environments. This is an excellent opportunity for someone who enjoys a mix of incident resolution, technical troubleshooting, infrastructure support, and continuous service improvement while working with modern Microsoft technologies., Essential Experience * Significant experience supporting large-scale enterprise or hybrid infrastructure environments * Strong expertise in: * Microsoft Windows Server * Active Directory * Microsoft Entra ID * VMware and/or Hyper-V Experience supporting authentication, authorisation, access management, and identity services Knowledge of DNS, DHCP, Group Policy, and core Microsoft technologies Understanding of ITIL service management principles PowerShell administration and automation experience Strong analytical and problem-solving abilities Excellent communication and stakeholder engagement skills Desirable Skills * Microsoft Intune or Workspace ONE * Azure Privileged Identity Management (PIM) * Azure Identity Governance * VMware administration * Quest migration and administration tools * Ivanti technologies * Hyperconverged infrastructure platforms * Microsoft technical certifications, particularly within Windows Server or Identity & Access Management disciplines Security Clearance Applicants should currently hold UK Security Clearance (SC) or be willing and eligible to undergo clearance as part of the onboarding process. ## Description As a 3rd Line Infrastructure Support Analyst, you'll play a key role in supporting and maintaining complex hybrid infrastructure environments. Working within a collaborative technical team, you'll provide both proactive and reactive support, helping to resolve incidents, perform root cause analysis, implement changes, and ensure service levels are consistently achieved. You'll be trusted to handle escalated technical issues, contribute to service improvement initiatives, and provide expert support across identity, authentication, and Windows server technologies., * Investigate, troubleshoot, and resolve complex infrastructure incidents * Ensure service levels and operational targets are achieved * Drive improvements in first-time fix rates and customer satisfaction * Support Windows Server, Active Directory, Entra ID, and virtualisation platforms * Perform root cause analysis and contribute to problem management activities * Assist with technical escalations and mentor colleagues where required * Follow change, incident, and security management processes * Maintain accurate records within ITSM platforms * Support reporting, documentation, and operational governance activities.