Wintel Administrator (Active SC Cleared)
Contract: 6 month (initial). Location: Max 3 days per week onsite in Wokingham. Rate: £Market rates p/d via Umbrella.
Security clearance: Active SC Cleared required prior to appointment (minimum 10 weeks).
Responsibilities
* Manage and support Windows Server environments (2016/2019/2022)
* Administer Active Directory, Group Policy (GPO), DNS, DHCP
* Perform system patching, upgrades, and security hardening
* Monitor system performance, availability, and capacity
* Manage Citrix Virtual Apps and Desktops (CVAD) environment
* Maintain Citrix Delivery Controllers, StoreFront, Director, Workspace
* Administer Citrix ADC (NetScaler) including load balancing and gateway
* Troubleshoot session issues, profile management, and app delivery
* Optimize user experience and performance in Citrix environments
* Manage VMware vSphere / ESXi / vCenter environments
* Provision and maintain virtual machines
* Configure HA, DRS, vMotion
* Perform capacity planning and resource optimization
* Backup and recovery using enterprise tools
* Provide support for end‑user devices, VDI, laptops, and desktops
* Troubleshoot issues with Windows OS, Office 365, printers, and applications
* Support VDI environments (Citrix / VMware Horizon if applicable)
* Handle incident, request, and problem management in ITSM tools (ServiceNow, etc.)
* Ensure adherence to SLAs and KPIs
* Implement security best practices and patch management
* Monitor vulnerabilities and coordinate remediation
* Ensure compliance with organizational policies and standards
* Maintain technical documentation, SOPs, and knowledge base articles
* Collaborate with networking, security, and application teams
* Participate in on‑call rotation and major incident support
Key Skills & Experience
* Windows Server Administration
* Active Directory & GPO
* Citrix Virtual Apps & Desktops
* VMware vSphere (ESXi, vCenter)
* Citrix NetScaler (ADC)
* VDI technologies
* Office 365 & endpoint management
* Backup solutions
* Monitoring tools (e.g., SolarWinds, SCOM)
* ITSM tools (ServiceNow, Remedy)
* Strong troubleshooting and analytical abilities
* Excellent communication and customer service skills
* Ability to work under pressure and manage priorities
* Team player with a proactive mindset
Desirable Skills & Knowledge
* Microsoft (MCSA / MCSE / Azure Admin)
* Citrix (CCA / CCP)
* VMware (VCP)
* Experience in EUC/Desktop Support environments
* Exposure to scripting (PowerShell preferred)
* Knowledge of Intune / SCCM / Endpoint Manager
* Problem‑solving mindset
* Customer‑centric approach
* Attention to detail
* Ability to multitask
* Continuous learning attitude
Equal Opportunity Statement
We welcome applications from all individuals, regardless of background or identity, and we encourage candidates who may not meet every listed requirement to still apply.
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