Senior M365 & Identity Systems Administrator

Progressive IT; Irving (TX); Hybrid; USD 90,000 - 130,000; Full time

Job summary

Progressive IT in Irving, TX is seeking a senior Systems Administrator to own day-to-day administration and optimization of the Microsoft 365 environment, Intune endpoint management, and hybrid Active Directory infrastructure.

This hands-on role requires independent troubleshooting of identity and endpoint issues and driving improvements across the directory services stack, with on-call rotation.

Qualifications

• 5-8 years hands-on systems administration experience in an enterprise environment.
• Advanced, hands-on experience with Microsoft 365 administration (Exchange Online, SharePoint, Teams, Entra ID).
• Deep, hands-on expertise with Microsoft Intune for endpoint management and compliance.
• Expert-level knowledge of Active Directory administration (GPOs, OUs, replication, hybrid identity/AD Connect).
• Solid understanding of identity security concepts: conditional access, MFA, RBAC and least-privilege principles.
• Experience with PowerShell scripting for administration and automation tasks, including the Microsoft Graph PowerShell SDK.
• Strong troubleshooting skills and ability to work independently on complex, ambiguous issues.
• Excellent written and verbal communication skills.

Responsibilities

• Administer and support the full Microsoft 365 suite (Exchange Online, SharePoint Online, Teams, OneDrive, Entra ID) including licensing, security policies, and service health monitoring.
• Manage endpoint configuration, compliance policies, app deployment and device lifecycle through Microsoft Intune (MDM/MAM) across Windows and mobile platforms.
• Administer on-premises Active Directory and hybrid identity (Entra Connect/AD Connect), including OU structure, GPOs, replication health, and directory synchronization.
• Manage user and device lifecycle: onboarding/offboarding, access provisioning, security group management and conditional access policies.
• Troubleshoot and resolve escalated tickets related to identity, authentication, endpoint compliance and M365 service issues.
• Support Microsoft 365 security posture: MFA, conditional access, Defender for Endpoint/Office 365 and Purview/compliance configurations.
• Maintain documentation for configurations, standard operating procedures and change management records.
• Partner with IT leadership on infrastructure projects, including migrations, upgrades and security hardening initiatives.
• Participate in on-call rotation and respond to after-hours incidents as needed.

Skills

Microsoft 365 administration

Intune endpoint management

Active Directory administration

Identity security concepts

PowerShell scripting

Troubleshooting

Communication

Independent work

Job description

Progressive IT in Irving, TX is seeking a senior Systems Administrator to own day-to-day administration and optimization of the Microsoft 365 environment, Intune endpoint management, and hybrid Active Directory infrastructure.

This hands-on role requires independent troubleshooting of identity and endpoint issues and driving improvements across the directory services stack, with on-call rotation.