Tier 2 Level Systems Administration Support Services

Location: DHA locations in and around San Antonio, TX

Clearance Required: Public Trust (ADP/IT-II) via Tier 3 federal Background Investigation (NACLC)

The Tier 2 Systems Administrator supports continuous enterprise operations and escalation-based troubleshooting for on-premise and MED
365 Cloud environments. This role is responsible for Tier 2-level server and systems maintenance, Active Directory and Azure administration, patching and configuration management, cloud resource oversight, and enterprise monitoring. The administrator will collaborate with Tier 1 and Tier 3 teams to maintain system availability and security across the DHA's enterprise infrastructure.

Key Responsibilities

• Provide 24x7 operational support and maintenance for enterprise infrastructure, including servers, firmware, software, and MED
  365 tenant environments.
• Troubleshoot and resolve issues involving server patches, software conflicts, configurations, and maintenance windows.
• Use DoD Information Assurance tools to validate patch and security control compliance.
• Manage Active Directory user accounts: create, modify, recover, restore AD objects, and administer group policies.
• Perform Azure AD user and access management, including monitoring cloud resource usage and permissions.
• Support mobile devices and end-user computing issues, including reset/configuration and Device Approval Requests (DAR).
• Conduct GPO-related troubleshooting, add security groups, and monitor Group Policy Object (GPO) application.
• Administer enterprise systems and perform data recovery, password management, and machine unlock operations.
• Escalate unresolved issues to Tier 3 and manage communication for de-escalation back to MTF or Tier 1.
• Monitor infrastructure using SCOM, Quest Suite, and related monitoring tools; identify and respond to anomalies.
• Produce Unscheduled Downtime Reports (UDR), SITREPs, After Action Reports (AAR), and related service interruption documentation.
• Administer eDiscovery operations within MED
  365, including data collection, preservation, processing, and purging for litigation, security incidents, and audits.
• Ensure compliance with DoD 8140 Core and Additional KSATs as applicable to the role.

Preferred Tools & Technologies

• Microsoft Active Directory, Azure AD, Group Policy Management
• Microsoft Endpoint Configuration Manager (MECM/SCCM), SCOM
• Quest Tool Suite
• Power Shell, Microsoft 365 (MED
  365), Windows Server
• eDiscovery and litigation support platforms

Education/Certification Requirements Education & Certification (per DoD 8140 Qualification Matrices)

1) Microsoft 365 Certified: Fundamentals or Microsoft Certified: Azure Fundamentals

2) Any of the following...

Academic

Education:

Bachelor's degree in information technology, Cybersecurity, or a related discipline.
OR Baseline: A+, or CND, or Network+, or GLSC
OR DoD/Military Training: 02AA or 00BB or C-150-2012 or C-150-2011 or M09CV
Q1 or F07DZ
Z1 or A-202-2100 (now A-150-1251) or A-150-1200 or A-150-1201 or A-102-5900 or A-531-0767