Job Summary:

We're hiring a Senior IT Infrastructure Administrator to lead and support a modern Windows infrastructure across both on-premises and cloud environments. This is a senior-level, Tier 3 role responsible for designing, maintaining, and optimizing enterprise systems while driving automation, security, and infrastructure improvements. You'll work with Windows Server, Active Directory, Azure/Entra ID, virtualization, PowerShell, and enterprise management tools to ensure a secure, highly available environment.

Responsibilities:

Design, administer, and support enterprise Windows Server environments (2016/2019/2022/2025)
Manage Active Directory, Azure/Entra ID, Group Policy, DNS, DHCP, DFS, and NTFS
Support and optimize Hyper-V virtualization infrastructure
Develop PowerShell automation to improve efficiency and reduce manual work
Lead enterprise patch management using Tanium
Manage SCCM deployments and endpoint administration
Monitor infrastructure health using enterprise monitoring tools
Troubleshoot complex Tier 3 infrastructure issues and perform root cause analysis
Participate in infrastructure architecture, upgrades, and technology planning
Collaborate with security, engineering, and global IT teams
Create documentation, technical standards, and mentor junior team members

Required Qualifications:

Bachelor's Degree in IT (or equivalent experience)
7+ years of Windows Systems Administration or Infrastructure experience
Experience supporting enterprise Windows Server environments
Strong Active Directory administration experience
Experience with Azure/Entra ID
Advanced PowerShell scripting
Hyper-V virtualization experience
Experience with enterprise patch management (Tanium or similar)
Expert-level troubleshooting of Windows infrastructure

Preferred Skills:

SCCM Administration
Citrix
NetScaler
WhatsUp Gold
Delinea (Privileged Access Management)
Lansweeper
Azure Cloud Services
Hybrid Infrastructure

Ideal Candidate:

You enjoy solving complex infrastructure problems, automating repetitive tasks, improving security, and helping build scalable enterprise environments. You're comfortable serving as the technical expert and leading infrastructure initiatives.

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