Senior Desktop Support Specialist L3 | SME & Enterprise IT

Global Relay; Greater London; On-site; GBP 36,000 - 52,000; Full time

Job summary

Global Relay is seeking a Desktop Support Specialist – L3 to provide advanced technical and end-user support across desktop workstations, client-server apps, and corporate wireless devices. You will serve as SME for complex resolutions, handling hardware, software, and conferencing equipment, with a focus on non-Windows OS support and enterprise diagnostics.

You will troubleshoot, install, and maintain End-User environments, including SCCM/MDT management, Active Directory, and group policy.

Qualifications

• Post-secondary degree or diploma in Technology Management or equivalent.
• 5+ years’ experience building, troubleshooting, and repairing desktops and laptops in an enterprise environment.
• 5+ years of experience supporting conference rooms, auditoriums and meeting rooms, including hardware and A/V equipment.
• Advanced knowledge of Windows, Apple, and Linux (Ubuntu) hardware and operating systems.
• Hands-on experience with SCCM/MDT for Windows, Landscape for Ubuntu, and MDM for mobile devices.

Responsibilities

• Provision and setup of End-User devices (desktop, laptop, mobile) and software.
• Install, configure and support conferencing equipment (Poly, Crestron, Zoom).
• Troubleshoot OS and applications across Windows, macOS, and Linux in a corporate environment.
• Manage devices using SCCM/MDT, Landscape and MDM for mobile devices.
• Document processes, runbooks, and knowledge base; mentor team members.

Skills

Windows OS

Active Directory

Group Policy

PowerShell

Troubleshooting

Linux (Ubuntu)

Outlook

Remote support

Education

Technology Management degree/diploma

Tools

SCCM/MDT

Landscape

Poly

Crestron

Zoom

Job description

Global Relay is seeking a Desktop Support Specialist – L3 to provide advanced technical and end-user support across desktop workstations, client-server apps, and corporate wireless devices. You will serve as SME for complex resolutions, handling hardware, software, and conferencing equipment, with a focus on non-Windows OS support and enterprise diagnostics.

You will troubleshoot, install, and maintain End-User environments, including SCCM/MDT management, Active Directory, and group policy.