Remote Senior Sys Admin – Windows & Networking

FirstPRO 360; Atlanta (GA); Hybrid; USD 90,000 - 140,000; Full time

Job summary

FirstPRO 360 is seeking a hands-on Senior Systems Administrator / Systems Engineer to own a Windows-based infrastructure. This systems-heavy role combines server and networking responsibilities, requiring comfort with troubleshooting end-to-end.

The ideal candidate will have strong IIS and PowerShell skills, Windows Server/AD/GP experience, and virtualization know-how (VMware/Hyper-V/Proxmox). Some networking and security tasks, including VPN, DNS, and SSL/TLS certificates, are part of the role.

Qualifications

• Experience managing Windows-based infrastructure and end-to-end troubleshooting.
• Strong knowledge of IIS, PowerShell scripting, and Active Directory.
• Hands-on virtualization experience (VMware, Hyper-V, Proxmox).
• Networking fundamentals: firewalls, VPN, DNS, switches, and network troubleshooting.
• Ability to perform server/storage/hardware diagnostics and IIS/application uptime support.

Responsibilities

• Own Windows infrastructure and troubleshoot issues end-to-end.
• Perform firewall updates and address switch/network issues.
• Monitor and troubleshoot server capacity/storage and failed drives.
• Maintain IIS configurations and ensure application uptime.
• Coordinate visits to the on-prem datacenter when needed.

Skills

IIS

PowerShell

Windows Server

Active Directory

Group Policy

VMware

Hyper-V

Proxmox

Networking

Tools

pfSense

UniFi

HAProxy

Cloudflare

Job description

FirstPRO 360 is seeking a hands-on Senior Systems Administrator / Systems Engineer to own a Windows-based infrastructure. This systems-heavy role combines server and networking responsibilities, requiring comfort with troubleshooting end-to-end.

The ideal candidate will have strong IIS and PowerShell skills, Windows Server/AD/GP experience, and virtualization know-how (VMware/Hyper-V/Proxmox). Some networking and security tasks, including VPN, DNS, and SSL/TLS certificates, are part of the role.