VDI Systems Administrator - Microsoft 365/Exchange Security Clearance
Job in
Oak Ridge, Anderson County, Tennessee, 37830, USA
Listed on 2026-02-14
Listing for:
Agensys Corporation
Full Time
position Listed on 2026-02-14
Job specializations:
-
IT/Tech
Systems Administrator, IT Support, Cybersecurity, Cloud Computing
Job Description & How to Apply Below
VDI Systems Administrator - Microsoft 365 / Exchange Locations:
Oak Ridge, TN | Germantown, MD | Washington, DC | Lemont, IL
Position Overview The Microsoft 365 / Exchange Administrator provides Tier III IT operations support across the Office of Information Management (OIM) and SC mission systems. This role focuses on Microsoft 365 account management, Exchange Online, and identity services, ensuring secure, reliable, and compliant messaging and collaboration platforms in alignment with DOE directives. The ideal candidate brings strong expertise in mail systems, identity management, and M365 administration while supporting hybrid environments and evolving enterprise service delivery models.
Key Responsibilities
* Administer Azure Active Directory (Azure AD), including user lifecycle management, group policies, conditional access, MFA, and RBAC
* Manage M365 accounts and licensing, ensuring compliance with organizational policies
* Implement identity protection and security policies across M365 tenants
* Provide Tier III support for Windows, macOS, and mobile endpoints integrated with M365 services
* Administer Exchange Online mail flow, transport rules, connectors, mailbox policies, and hybrid configurations
* Manage mailbox provisioning, permissions, retention policies, shared mailboxes, public folders, and distribution groups
* Monitor and troubleshoot mail delivery, synchronization, and performance issues
* Implement and maintain DLP, eDiscovery, audit logging, and retention policies
* Support Microsoft Teams policies, messaging, and voice integration
* Administer SharePoint Online and One Drive for Business permissions, governance, and data protection
* Ensure integration across Exchange, Teams, SharePoint, and One Drive
* Monitor M365 service availability, health, and performance
* Track license utilization and Azure/M365 cost usage
* Maintain operational records, inventories, and CMDB entries
* Follow OIM change management and CCR processes
* Evaluate changes for cybersecurity and compliance risk
* Document SOPs, tenant policies, and configuration records
Minimum Qualifications
* Bachelor's Degree in IT, Computer Science, or related field (or equivalent experience);
Master's preferred
* 7-10 years of experience in IT or systems administration
* Technical proficiency equivalent to certifications such as:
* Microsoft 365 Messaging Administrator
* Microsoft 365 Enterprise Administrator
* Azure Administrator Associate
* CompTIA Security+ or Network+ Additional Skills
* Power Shell scripting, Azure CLI, and automation tools
* Exchange Online, Azure AD, Teams, SharePoint Online, One Drive
* Hybrid Exchange environments (on-prem + cloud)
* M365 compliance frameworks (DLP, retention, eDiscovery, audit)
* Strong troubleshooting skills for mail flow, account provisioning, and identity synchronization
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