Senior IT Site Support Engineer

Addison Group; Denver (CO); On-site; USD 47,000 - 51,000; Full time

Benefits offered by this job

Medical, Dental, Vision, and 401k

Job summary

Addison Group is seeking an experienced Sr Site Support Specialist in Denver, CO to deliver hands-on IT support in a fast-paced corporate environment. The role emphasizes Tier 2/3 end-user support, Windows OS, and Microsoft 365 administration, with focus on access management and endpoint troubleshooting.

Responsibilities include deploying Windows endpoints, managing Active Directory, licensing and email issues, and rapid incident resolution.

Qualifications

• 5+ years of hands-on IT support experience (Tier 2/3).
• Strong Windows 10/11 troubleshooting skills.
• Experience with Active Directory and access management.
• Good knowledge of TCP/IP, VPNs, and endpoint security.
• Experience imaging and deploying Windows endpoints.

Responsibilities

• Provide advanced technical support for laptops, desktops, peripherals, mobile devices, and common business applications.
• Troubleshoot Windows 10/11, Microsoft 365, connectivity, VPN, hardware, software, and user access issues.
• Administer routine Active Directory functions, including user accounts, groups, permissions, and password-related issues.
• Support Microsoft 365 user administration, licensing, email, and application troubleshooting.
• Image, configure, deploy, and replace Windows endpoints.
• Install and troubleshoot approved software, updates, and endpoint configurations.
• Diagnose basic LAN, wireless, TCP/IP, and network connectivity issues.
• Maintain accurate asset, inventory, and ticket documentation.
• Escalate complex infrastructure issues while partnering with other IT teams and third-party support providers.
• Assist with technology deployments, upgrades, and end-user improvement initiatives.
• Provide occasional after-hours support when required.

Skills

Tier 2/3 IT support

Windows 10/11 troubleshooting

Microsoft 365 troubleshooting

Active Directory management

Networking: TCP/IP, VPN

End-user support

Tools

Active Directory

Microsoft 365 Admin

Windows imaging/deployment

Job description

Addison Group is seeking an experienced Sr Site Support Specialist in Denver, CO to deliver hands-on IT support in a fast-paced corporate environment. The role emphasizes Tier 2/3 end-user support, Windows OS, and Microsoft 365 administration, with focus on access management and endpoint troubleshooting.

Responsibilities include deploying Windows endpoints, managing Active Directory, licensing and email issues, and rapid incident resolution.