Senior IT Systems Administrator

Job Summary

• Provide hands-on IT support across two nearby company locations (Buford and Suwanee, GA).
• Administer and maintain Ubiquiti (UniFi) network infrastructure, including site-to-site VPNs.
• Monitor and troubleshoot network connectivity, performance, and access issues.
• Support and maintain a mixed Microsoft Server (Active Directory, Group Policy, DNS/DHCP, SharePoint) and Linux/Docker environment.
• Aid in migration projects, such as moving SharePoint to Azure/SharePoint Online.
• Deliver responsive desktop and end-user support, including resolving hardware, software, access, and connectivity issues (primarily Windows; some Mac).
• Manage and document network topology and infrastructure changes.
• Perform system maintenance, user provisioning, permissions management, and issue troubleshooting.
• Contribute to infrastructure improvements, cloud initiatives, and ensure system security and stability.
• Provide onsite support, traveling between the two locations as needed.
• Work independently, prioritize tasks, and take ownership of issues from start to resolution.

Requirements

• Minimum 3 years of IT support experience, including network administration.
• Experience with Ubiquiti UniFi network infrastructure.
• Knowledge of Microsoft Active Directory, Group Policy, DNS/DHCP, and SharePoint.
• Experience with Linux and Docker environments.
• Experience with Windows and Mac operating systems.
• Strong problem-solving and troubleshooting skills.
• Ability to work independently and manage multiple tasks.

Skills

• ITIL best practices.
• Network monitoring and troubleshooting tools (e.g., Nagios, SolarWinds).
• Cloud services (Azure, SharePoint Online).
• Scripting languages (PowerShell, Bash).
• Basic knowledge of cybersecurity principles.