Senior Desktop Support Engineer - Windows, AD & IT

Radiant Systems Inc; Harrison (NJ); On-site; USD 90,000 - 110,000; Full time

Job summary

Radiant Systems Inc is seeking an experienced Senior Desktop Support Engineer to deliver advanced Level 1/2 support in a large enterprise environment. You will support Windows workstations, Active Directory, Microsoft 365, networking, and endpoint devices while collaborating with network, server, security, and infrastructure teams.

The role emphasizes troubleshooting complex issues, direct end-user interaction, and contributing to documentation and knowledge-base articles across multiple sites.

Qualifications

• 5+ years of enterprise desktop or end-user computing support.
• 5+ years of Windows workstation administration and troubleshooting.
• 5+ years of Active Directory administration.
• Strong understanding of DNS, DHCP, TCP/IP, LAN, WAN, and Wi‑Fi.
• Experience with workstation imaging, deployment, and data migration.
• Experience troubleshooting hardware, software, printers, and network connectivity.
• Experience with enterprise ticketing and IT service-management processes.
• Strong troubleshooting, analytical, and problem-solving abilities.
• Excellent communication and customer-service skills.

Responsibilities

• Provide advanced technical support for Windows desktops, laptops, applications and peripherals.
• Diagnose and resolve complex hardware, software, operating system, and connectivity issues.
• Install, configure, upgrade, and maintain desktop systems and enterprise applications.
• Manage Active Directory users, groups, permissions, and computer accounts.
• Support Microsoft 365, Exchange, Outlook, Teams, and related applications.
• Troubleshoot LAN, WAN, Wi-Fi, VPN, DNS, DHCP, TCP/IP, and network connectivity issues.
• Perform workstation imaging, operating system deployment, PC refreshes, and data migrations.
• Troubleshoot printers, scanners, mobile devices, and other enterprise peripherals.
• Use remote-support tools to diagnose and resolve issues for users at different locations.
• Monitor and manage incidents, service requests, and escalations through ticketing systems.
• Maintain accurate hardware, software, and asset-management records.
• Assist with endpoint security, configuration, patching, and compliance activities.
• Work with network, server, security, and application teams on complex issues and infrastructure projects.
• Coordinate with vendors for hardware replacement, repairs, and technical support.
• Create and maintain technical documentation, troubleshooting procedures, and knowledge-base articles.
• Support system upgrades, migrations, deployments, and other IT projects.
• Provide occasional onsite support at nearby locations.

Skills

Windows operating systems

Active Directory

DNS/DHCP/TCPIP

LAN/WAN/WiFi

ITSM ticketing

End-user communication

Troubleshooting

PowerShell

VMware

Microsoft Intune

SCCM/MECM

ITIL Foundation knowledge

Tools

PowerShell

VMware

Microsoft Intune

SCCM/MECM

Job description

Radiant Systems Inc is seeking an experienced Senior Desktop Support Engineer to deliver advanced Level 1/2 support in a large enterprise environment. You will support Windows workstations, Active Directory, Microsoft 365, networking, and endpoint devices while collaborating with network, server, security, and infrastructure teams.

The role emphasizes troubleshooting complex issues, direct end-user interaction, and contributing to documentation and knowledge-base articles across multiple sites.