System Administrator – Mid

Leidos

System Administrator at Leidos providing administration and operational support for Microsoft platforms. Ensuring reliability, compliance, and delivering Tier 1/2/3 support for collaboration services.

Posted 4/25/2026full-timeRemote • 🇺🇸 United StatesMid-LevelSenior💰 $73,450 - $132,775 per yearWebsite

Tech Stack

Tools & technologies

Azure

About the role

Key responsibilities & impact

Microsoft Platform Administration.
Administer and maintain Windows Server, Active Directory, Group Policy, and Microsoft 365 GCC services in accordance with SEC operational standards.
Provide Tier 1/2/3 operational support for Microsoft 365 GCC/GCC G5 collaboration and productivity services, including incident response, service requests, and escalation.
Manage user accounts, permissions, and security policies across Active Directory/Azure Active Directory, Exchange Online, SharePoint Online, and Teams.
Perform configuration, patching, and maintenance activities to preserve system stability, security posture, and service continuity.
Configure and maintain Azure resources, including virtual machines, storage accounts, and virtual networking components.
Administer Azure Active Directory identity services and access controls to support compliance and system integrity.
Support day-to-day operations for Exchange Online, SharePoint Online, Teams, and related Microsoft collaboration services.
Develop and maintain PowerShell automation scripts for recurring administration, maintenance, and reporting tasks.

Requirements

What you’ll need

This position is restricted to U.S. citizens only.
Applicants must not hold dual citizenship with any other country to be eligible for work under this contract.
The ability to obtain and maintain SEC Public Trust (or higher if required).
Bachelor's degree in a relevant field (e.g., Information Technology, Computer Science, Engineering).
4+ years of experience in system administration with a focus on Microsoft technologies.
Strong experience administering Windows Server, Active Directory, Group Policy, and Microsoft 365 environments.
Demonstrated experience supporting Exchange Online, SharePoint Online, and Microsoft Teams in an enterprise environment.
Hands-on experience supporting Azure services, including Azure Active Directory, virtual machines, storage, and networking.
Experience supporting Microsoft Teams conferencing and video streaming operations for enterprise events.

Benefits

Comp & perks

Competitive compensation
Health and Wellness programs
Income Protection
Paid Leave
Retirement

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills & Tools

Windows ServerActive DirectoryGroup PolicyMicrosoft 365Azure Active DirectoryExchange OnlineSharePoint OnlineTeamsPowerShellAzure services

Certifications

Bachelor's degree in Information TechnologyBachelor's degree in Computer ScienceBachelor's degree in EngineeringSEC Public Trust