Network & Systems Administrator / Tier III

Location: Washington, DC (On-site, 5 days/week, 8:30 AM – 5:30 PM)
Employment Type: Contract-to-Hire
Hourly rate: 45-50/hr.

Overview

We are seeking a highly skilled Network & Systems Administrator (Tier III) to support and maintain a hybrid Microsoft-based IT environment. This role bridges advanced end-user support and systems administration, requiring a hands-on professional who can operate across both infrastructure and user-facing responsibilities.

The ideal candidate will have strong experience in Microsoft 365 administration, hybrid Active Directory environments, and PowerShell scripting, with the ability to manage and automate large-scale system changes.

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Key Responsibilities

Systems & Cloud Administration

• Administer and configure Microsoft 365 (M365) environment, including user management and service optimization
• Manage hybrid Active Directory (on-premises and Azure AD/Entra ID) environments
• Support and maintain Azure cloud infrastructure, including Azure resource management
• Administer tools such as Microsoft Defender, SCCM, Intune, and Azure Management services

Network & Infrastructure Support

• Support LAN/WAN network infrastructure across corporate and field offices (Phoenix, Los Angeles, and remote users)
• Perform system patching, upgrades, and maintenance across servers and endpoints
• Assist with light infrastructure management across cloud and on-premises servers

End-User & Tier III Support

• Provide advanced (Tier III) technical support for complex system and user issues
• Act as an escalation point between help desk/end-user support and engineering teams
• Support a distributed workforce with both on-site and remote users

Automation & Scripting

• Develop and maintain PowerShell scripts to automate administrative tasks
• Perform bulk user and system management tasks (e.g., account provisioning, deprovisioning, updates)
• Execute large-scale changes such as bulk account disabling, cleanup, and device wiping
• Generate automated reporting (e.g., AD user attributes, system data extraction)

Provisioning & User Lifecycle Management

• Manage user onboarding and offboarding processes within AD/M365
• Provision devices and user accounts in accordance with company policies
• Ensure secure and efficient access management across systems

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Required Qualifications

• Bachelor’s degree in Information Technology, Computer Science, or related field
• 5+ years of experience in systems and network administration
• Strong experience in Microsoft 365 administration and configuration
• Hands-on experience with:
  • Active Directory (on-prem and hybrid environments)
  • Azure (cloud services and management)
  • Entra ID (Azure AD)
  • Microsoft Defender, SCCM, and Intune
• Advanced PowerShell scripting experience (automation, bulk actions, reporting)
• Experience supporting LAN/WAN environments
• Ability to operate at a Tier III support level

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Preferred Qualifications

• Experience working in hybrid cloud environments transitioning from on-prem to cloud
• Familiarity with endpoint management in cloud-based environments
• Strong troubleshooting and problem-solving skills across both systems and networks
• Experience supporting multi-site organizations with remote users

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Key Traits for Success

• Ability to work across both end-user support and infrastructure management
• Strong attention to detail with a focus on automation and efficiency
• Proactive mindset in identifying and resolving system issues
• Excellent communication skills for cross-functional collaboration

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