Senior Desktop Support Specialist L3 & SME (A/V, Ubuntu)

Global Relay; London (KY); On-site; USD 59,000 - 86,000; Full time

Job summary

Global Relay seeks a senior Desktop Support Specialist – L3 to deliver advanced end-user support across desktop, A/V, and mobile devices for staff. You will act as SME, handling complex escalations and collaborating with IT teams on strategic initiatives.

The role requires 5+ years in enterprise desktop support, strong Windows/macOS/Linux knowledge, and proven experience with SCCM/MDT and AD/GP. Excellent English communication is essential.

Qualifications

• A 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’ experience supporting conference rooms, auditoriums and meeting rooms, including all hardware and A/V equipment.
• Advanced knowledge of Windows, macOS, and Linux (Ubuntu/Landscape) hardware and operating systems.
• Hands-on experience with SCCM/MDT for Windows, Landscape for Ubuntu, MDM for mobile devices.
• Advanced knowledge of Active Directory and Group Policy management in a managed desktop environment.
• Experience with end-user applications including Outlook, Office, Visio and Project.
• Scripting (PowerShell) and desktop automation (SCCM/MDT).
• Strong networking basics and ability to configure end-user devices.

Responsibilities

• Provision and setup of End-User devices (desktop, laptop, mobile), and Office/Exchange/AD management.
• Advanced investigation and resolution of A/V hardware and meeting room equipment issues.
• Support for Windows, macOS, and Linux desktops and related software.
• Manage ticketing system: create, track, and close requests.
• Deploy and manage workstations using SCCM/MDT, Landscape, and Airwatch; create deployment packages.
• Configure and maintain Group Policy Objects and security policies.
• Perform regular checks of conference room equipment and VOIP systems.
• Mentor and train team members; contribute to team strategy discussions.

Skills

Windows

macOS

Linux

PowerShell

Troubleshooting

Communication

Networking basics

Education

Technology Management degree

Tools

SCCM/MDT

Landscape

MDM

Active Directory

Group Policy

Job description

Global Relay seeks a senior Desktop Support Specialist – L3 to deliver advanced end-user support across desktop, A/V, and mobile devices for staff. You will act as SME, handling complex escalations and collaborating with IT teams on strategic initiatives.

The role requires 5+ years in enterprise desktop support, strong Windows/macOS/Linux knowledge, and proven experience with SCCM/MDT and AD/GP. Excellent English communication is essential.