Senior Systems Administrator – Windows & Azure (Federal)

Development InfoStructure; Washington (District of Columbia); On-site; USD 90,000 - 130,000; Full time

Job summary

Devis is seeking a senior IT Helpdesk lead for a federal agency, handling root-cause analysis and systems administration for 2,100 HQ staff and 53 field offices. You’ll manage AD, Entra ID, Azure, M365, Intune, patching, and Windows 11 migration while aligning with the USGCB baseline and Zendesk.

You’ll write PowerShell scripts to automate builds, document your work thoroughly for hand-offs, and coordinate with security operations on threat monitoring and remediation.

Qualifications

• Bachelor's degree in IT or 10 years of related experience.
• Hands-on system administration in a Microsoft enterprise environment.
• PowerShell scripting you have written and shipped.
• Experience serving as the escalation point above Tier 1 and Tier 2 support.
• Clear written documentation habits.

Responsibilities

• Take the incidents nobody else could close: advanced troubleshooting, root-cause analysis, and the judgment call on whether an incident is a one-off or the first sign of a system-wide problem
• Administer Active Directory, Azure, Entra ID, and Microsoft 365: accounts, group policy, permissions, and access controls
• Write, build, and deploy PowerShell scripts to automate builds, deployments, and routine work across multiple environments
• Install, update, and patch applications across the enterprise; author and test install scripts; package and integration-test applications
• Plan and deliver the Windows 11 migration, keeping every agency application working under the USGCB desktop baseline
• Harden workstations, monitor threats, and work with the agency security operations team on virus scans, malware remediation, and desktop data recovery
• Support Microsoft 365 products including SharePoint, OneDrive, Teams, and Power Apps, plus mobile device configuration
• Monitor network performance and troubleshoot connectivity across LAN and WAN infrastructure
• Document your work in Zendesk thoroughly enough that another technician or analyst can pick it up without you in the room

Skills

PowerShell scripting

Active Directory

Entra ID

Microsoft 365

Intune

Zendesk

Education

Bachelor's degree in IT or related field

Tools

Windows Server

SUSE Linux Enterprise Server

Azure

ManageEngine Endpoint Central

Job description

Devis is seeking a senior IT Helpdesk lead for a federal agency, handling root-cause analysis and systems administration for 2,100 HQ staff and 53 field offices. You’ll manage AD, Entra ID, Azure, M365, Intune, patching, and Windows 11 migration while aligning with the USGCB baseline and Zendesk.

You’ll write PowerShell scripts to automate builds, document your work thoroughly for hand-offs, and coordinate with security operations on threat monitoring and remediation.