Infrastructure Support Specialist

Requirements

• We require strong experience with Windows Server 2016, 2019, and 2022, including installation, configuration, Active Directory fundamentals, Group Policies, DNS, DHCP, DFS, and domain communication paths.
• We require proven expertise supporting and administering Hyper-V environments, including cluster management, system builds, virtual networking, and troubleshooting.
• We require experience planning, installing, configuring, and upgrading VMware ESXi and v Center Server.
• We require strong knowledge of enterprise storage solutions, including HPE and Dell arrays and Microsoft Storage Spaces Direct, with experience in performance monitoring, optimisation, and capacity planning.
• We require advanced Power Shell scripting capability for automation.
• We require experience supporting HCI and converged infrastructure platforms, including Dell and HP systems.
• We require proficiency with backup and security solutions such as Symantec Net Backup and Symantec MFA.
• We require a strong understanding of systems management tools including RDS, WSUS, and SCCM, along with their deployment and monitoring processes.
• We require hands-on experience supporting BAU operational activities across Windows, storage, backup, and workstation environments, including troubleshooting, patching, and software upgrades.
• We require the ability to create and interpret HLDs, LLDs, and build guides, ensuring clear documentation of infrastructure solutions.
• We require experience working within controlled data centre environments, including system builds, cabling, proactive monitoring, and physical hardware management.
• We require strong working knowledge of Extreme, Cisco, Dell, and HPE switching platforms, including configuration, troubleshooting, and performance monitoring.
• We require understanding of enterprise firewall concepts with exposure to Juniper and Palo Alto firewall technologies.
• We require the ability to diagnose complex network issues impacting servers, storage, virtual machines, authentication paths, and workstation connectivity.
• We require solid understanding of networking fundamentals, including VLANs, trunking, routing basics, ARP, STP, link aggregation, segmentation, and multi-network secure architectures.
• We require demonstrated ability to support domain-integrated services including DNS, DHCP, and domain structure in secure, multi-tiered environments.
• We require strong analytical, diagnostic, and problem-solving ability across all infrastructure layers.
• We require DV clearance or willingness to undergo vetting.
• We require the ability to work onsite at our Aldermaston client site five days per week, with occasional work from home.
• We require strong communication skills and the ability to work professionally with internal stakeholders and external suppliers.
• We prefer experience with Azure Cloud and/or Oracle Cloud platforms for hybrid infrastructure integration.
• We prefer exposure to VMware technologies including ESXi, v Center, and virtual networking.
• We prefer knowledge of enterprise storage platforms such as Left-Hand Storage, EMC Networker/Unity, HPE 3PAR, SAN, MSA, and Store Once solutions.
• We prefer experience supporting SAN/NAS storage networking, including fibre channel and i SCSI fabrics.
• We prefer industry certifications such as CCNA, CCNP, or relevant vendor qualifications from HPE, Dell, or Cisco.
• We prefer exposure to Juniper and Palo Alto firewall technologies and understanding of enterprise firewall behaviour and policy structures.
• We prefer familiarity with software-defined networking concepts, segmentation models, and secure multi-network designs.
• We prefer experience working with complex datacentre networking topologies, including VLAN design, LACP or link aggregation, spanning-tree management, and multi-layer switching.
• We prefer Linux operating system knowledge and administrative capability.
• We prefer experience using monitoring or orchestration tools for network or infrastructure automation such as Power Shell, Python, Ansible, or similar.
• We prefer project management experience with the ability to run or contribute to technical workstreams.
• We prefer ITIL Foundation certification and exposure to ITIL Transition processes.

Responsibilities

• We provide excellent 3rd and 4th line support across server, storage, networking, and desktop environments.
• We manage and support Windows Server, storage, Hyper-V, clustering, HCI platforms, backups, and monitoring systems.
• We perform performance monitoring, patching, image deployment, and system optimisation across infrastructure services.
• We troubleshoot issues across servers, storage, virtual machines, authentication paths, and workstations.
• We support enterprise networking across Extreme, Cisco, Dell, and HPE switching, including configuration and fault resolution.
• We assist with Juniper and Palo Alto firewall environments and resolve network connectivity issues.
• We apply core networking principles including VLANs, routing basics, STP, ARP, link aggregation, and network segmentation.
• We maintain DNS, DHCP, and domain communication services across multi-network environments.
• We perform datacentre operations such as cabling, hardware installation, configuration changes, and proactive health checks.
• We contribute to infrastructure and network projects, upgrades, and continuous improvement initiatives.
• We create and maintain documentation including HLDs, LLDs, build guides, and operational procedures.
• We participate in Incident, Change, and Problem Management processes following ITIL practices.
• We deliver solution implementation, troubleshooting, performance optimisation, and root cause analysis across server, storage, and virtualisation layers.
• We collaborate closely with Networking, Storage, Security, Desktop, and Application teams.
• We manage multiple workstreams concurrently and respond rapidly to critical incidents.
• We proactively identify risks, service improvements, and potential failures to prevent recurring issues.
• We support project delivery, including infrastructure upgrades, platform enhancements, obsolescence remediation, data centre improvements, and Hyper-V cluster lifecycle activities.
• Technologies
• Active Directory
• Ansible
• Azure
• Cloud
• Cisco
• Firewall
• Hardware
• Hyper-V
• Support
• ITIL
• Linux
• Network
• Oracle
• Power Shell
• Python
• Security
• Unity
• VMware
• Windows
• Game Dev
• ITSM
• More

We are a high-performance, fast-paced Enterprise IT team supporting a major public-sector client from our onsite location in Aldermaston, with occasional work from home.

This is a strategically important role within our On-Prem Infrastructure and wider Enterprise Server Management function, where we focus on stability, resilience, security, and the ongoing evolution of critical IT services.

We offer the opportunity to work across complex infrastructure estates, contribute to major transformation initiatives, and collaborate with specialist technical teams and external suppliers.

We are looking for an enthusiastic, resilient, customer-focused professional who is comfortable working autonomously and as part of a team, and who is committed to continuous professional development in a rapidly evolving technological environment.

• last updated 30 week of 2026
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