Infrastructure Support Specialist

Infrastructure Support Specialist – Job
Specification

JOB TITLE: Infrastructure Support Specialist
LOCATION: Client Site – Onsite 5 days per week (occasional WFH), Primary location:
Aldermaston
SECURITY CLEARANCE: DV or willing to undergo vetting
ROLE OVERVIEW:
The Infrastructure Support Specialist plays a critical role within a highperformance, fastpaced
Enterprise IT environment that supports a major publicsector client. The position is responsible
for delivering advanced 3 rd and 4 th line support across a wide range of technologies including
Windows Server, Enterprise storage platforms, HyperV, VMware, networking, and workstation
environments. The role demands a deep technical understanding of OnPremise datacentre
operations, as well as the ability to manage complex infrastructure estates with a focus on
stability, resilience, and security.
You will be a key member of the OnPrem Infrastructure Team, providing expert troubleshooting,
solution implementation, and performance optimisation across server, storage, and
virtualisation layers. Daily duties include performance monitoring, patch management, capacity
planning, image deployment, system builds, BAU operational support, and proactive
identification of risks and service improvements. Alongside BAU tasks, you will work extensively
on a wide variety of projects covering infrastructure upgrades, platform enhancements,
obsolescence remediation, data centre improvements, HyperV cluster lifecycle activities, and
related transformation initiatives.
The role requires an individual who can confidently operate in controlled datacentre
environments, managing configuration changes, cabling, hardware replacements, and
environmental troubleshooting to ensure maximum service uptime. You will collaborate closely
with Networking, Storage, Security, Desktop, and Application teams—requiring strong
communication skills, the ability to explain technical concepts clearly, and the professionalism to
work with internal stakeholders and external suppliers alike.
Candidates should demonstrate the ability to manage multiple workstreams concurrently,
respond rapidly to critical incidents, and apply strong analytical skills to diagnose complex
infrastructure issues across interconnected systems. The position also demands a proactive
mindset—anticipating potential failures, contributing to root cause analysis, and driving
improvements to prevent recurring issues. Your ability to document infrastructure designs,

create operational guides, and support rigorous ITSM practices (Incident, Problem, and Change
Management) will be essential to the success of this role.
This is a strategically important position within the wider Enterprise Server Management
function, ensuring continuity of critical services and supporting the ongoing evolution of the
client’s IT capabilities. The successful candidate will be enthusiastic, resilient, comfortable
working autonomously or as part of a team, and committed to continuous professional
development within a rapidly evolving technological landscape.
We are looking for a highly motivated, customer-focused and enthusiastic individual to join the
On-Prem Infrastructure team. Responsibilities include delivering excellent 3rd/4th line support
across Server, Storage, Networking, and Desktop environments, and managing complex
enterprise infrastructure. Duties include Hyper-V administration, troubleshooting, BAU support,
project delivery, and collaboration across support teams.
KEY RESPONSIBILITIES:
 Manage and support Windows Server, Storage, HyperV, Clustering, HCI
platforms, backups, and monitoring systems.
 Perform performance monitoring, patching, image deployment, and system
optimisation across infrastructure services.
 Troubleshoot issues across servers, storage, virtual machines, authentication
paths, and workstations.
 Support enterprise networking across Extreme, Cisco, Dell, and HPE switching,
including configuration and fault resolution.
 Assist with Juniper and Palo Alto firewall environments and resolve network
connectivity issues.
 Apply core networking principles including VLANs, routing basics, STP, ARP, link
aggregation, and network segmentation.
 Maintain DNS, DHCP, and domain communication services across multinetwork
environments.
 Perform datacentre operations such as cabling, hardware installation, config
changes, and proactive health checks.
 Contribute to infrastructure and network projects, upgrades, and continuous
improvement initiatives.
 Create and maintain documentation including HLDs, LLDs, build guides, and
operational procedures.
 Participate in Incident, Change, and Problem Management processes following
ITIL practices.

ESSENTIAL SKILLS/QUALIFICATIONS:
 Strong experience with Windows Server 2016/2019/2022, including OS
installation, configuration, Active Directory fundamentals, Group Policies, DNS,
DHCP, DFS, and domain communication paths.
 Proven expertise supporting and administering HyperV environments, including
cluster management, system builds, virtual networking, and troubleshooting.
 Experience providing planning, installation, configuration, and upgrade support
for VMware ESXi and vCenter Server.
 Strong knowledge of enterprise storage solutions, including HPE/Dell arrays and
Microsoft Storage Spaces Direct, with experience in performance monitoring,
optimisation, and capacity planning.
 Advanced PowerShell scripting capability for automation
 Experience supporting HCI and converged infrastructure platforms, including
Dell/HP systems.
 Proficiency with backup and security solutions such as Symantec NetBackup and
Symantec MFA.
 Strong understanding of systems management tools including RDS, WSUS, SCCM,
SCOM, and their deployment/monitoring processes.
 Handson experience supporting BAU operational activities across Windows,
Storage, Backup, and workstation environments, including troubleshooting,
patching, and software upgrades.
 Ability to create and interpret HLDs, LLDs, and Build Guides, ensuring clear
documentation of infrastructure solutions.
 Experience working within controlled data centre environments, including
system builds, cabling, proactive monitoring, and physical hardware
management.
 Strong working knowledge of Extreme, Cisco, Dell, and HPE switching platforms,
including configuration, troubleshooting, and performance monitoring.
 Understanding of enterprise firewall concepts with exposure to Juniper and Palo
Alto firewall technologies.
 Ability to diagnose complex network issues impacting servers, storage, virtual
machines, authentication paths, and workstation connectivity.
 Solid understanding of networking fundamentals: VLANs, trunking, routing
basics, ARP, STP, link aggregation, segmentation, and multinetwork secure
architectures.

 Demonstrated ability to support domainintegrated services including DNS, DHCP,
and domain structure in secure, multitiered environments.
 Strong analytical, diagnostic, and problemsolving ability across all infrastructure
layers.
DESIRABLE SKILLS:
 Experience with Azure Cloud and/or Oracle Cloud platforms for hybrid
infrastructure integration.
 Exposure to VMware technologies including ESXi, vCenter, and virtual
networking (beneficial but not essential).
 Knowledge of enterprise storage platforms such as Left-Hand Storage, EMC
Networker/Unity, HPe 3PAR, SAN, MSA, and StoreOnce solutions.
 Experience supporting SAN/NAS storage networking, including fibre channel and
iSCSI fabrics.
 Industry certifications such as CCNA/CCNP for networking or relevant vendor
qualifications (HPE, Dell, Cisco).
 Exposure to Juniper and Palo Alto firewall technologies and understanding of
enterprise firewall behaviour and policy structures.
 Familiarity with softwaredefined networking concepts, segmentation models,
and secure multinetwork designs.
 Experience working with complex datacentre networking topologies including
VLAN design, LACP/link aggregation, spanningtree management, and multilayer
switching.
 Linux operating system knowledge and administrative capability.
 Experience using monitoring or orchestration tools for network or infrastructure
automation (PowerShell, Python, Ansible, or similar).
 Project management experience with the ability to run or contribute to technical
workstreams.
 ITIL Foundation certification and exposure to ITIL Transition processes.