The Systems and Storage Engineer provides engineering and third- and fourth-line support for the firm’s global systems, virtualisation, cloud, storage and data protection services. Reporting to the Systems Engineering Manager, the role requires extensive experience supporting large, business-critical infrastructure across Windows Server, VMware, Active Directory, Microsoft Azure, Entra ID, enterprise SAN and NAS storage, Fibre Channel fabrics, backup and recovery technologies. The successful candidate will use their technical experience to resolve complex issues, improve service resilience and security, and support infrastructure design and lifecycle management. They will work independently and as a subject matter expert, providing technical guidance to project teams, Architecture, regional IT, suppliers and support partners. Key responsibilities include: Support Windows Server, VMware, Active Directory, Microsoft Azure, Entra ID and associated infrastructure. Administer enterprise SAN and NAS storage, Fibre Channel fabrics, capacity and performance. Operate backup, recovery, replication and data protection services. Diagnose complex incidents, identify root causes and prevent recurrence. Perform monitoring, health checks, maintenance, vulnerability remediation and lifecycle management. Design and implement resilient infrastructure aligned with architecture, security and IT strategy. Support business continuity and disaster recovery testing. Deliver upgrades, migrations and technology refreshes. Provide technical guidance to project teams, Architecture, regional IT, suppliers and support partners. Maintain technical standards, procedures, documentation and knowledge articles. Follow ITIL, production support, information security and change-management requirements. Manage and support Microsoft 365 services including those operated by 21Vianet in China, including Entra ID, Exchange Online, SharePoint Online, Intune, Conditional Access, security governance, tenant administration, monitoring, troubleshooting, and incident management. Participate in the on-call rota, including planned out-of-hours and occasional weekend maintenance activities. Experience: To perform this role, you will be an experienced Systems and Storage Engineer with strong technical knowledge across Wintel infrastructure, VMware virtualisation, Microsoft Azure services, enterprise Storage platforms and backup technologies. The role requires hands-on experience supporting mission-critical server, storage and backup environments, with the ability to administer, maintain and improve Windows, SAN/NAS, virtualised and cloud-based infrastructure services. Extensive experience managing and maintaining Windows Server 2019, 2022 and 2025 estates, ideally using VMware ESX / vSphere 8.0 or above on HPE Rackmount or Synergy server hardware, including firmware patching and security vulnerability management. Experience administering Microsoft Azure services through the Azure Portal, including Entra ID, Entra Connect and enterprise application configuration for SSO. Strong technical knowledge of NetApp SAN/NAS Storage arrays, storage protocols and enterprise storage management in a mission-critical environment. Experience supporting CommVault Backup solutions, Backup methodologies, array-based replication, disaster recovery and split mirror backup technologies. Experience administering SAN fabrics across multi-site Brocade environments, with a strong understanding of Fibre Channel networks. Experienced in Wintel system administration, with the ability to troubleshoot complex infrastructure issues across server, storage and backup platforms. Knowledge using Infrastructure as Code via scripting languages including PowerShell, Azure CLI, PagerDuty Process Automation, Azure Automation & Terraform. Familiarity with Microsoft Defender Antivirus and Defender Endpoint configuration and support, Microsoft SQL databases, will be an advantage. Experience administering Microsoft 365, including those operated by 21Vianet in China, including Microsoft Entra ID, Azure, Exchange Online, SharePoint Online, Intune, and Conditional Access Policies.  Strong understanding of identity and access management, authentication, and Microsoft 365 security best practices.  Accustomed to working within the ITIL framework including Incident, Request, Problem and Change Management. Good planning, documentation and project workstream delivery skills, with the ability to support infrastructure change, lifecycle management and service improvements.