Tier 2 Systems Administration Support Service
3500 Square LLC - San Antonio, Texas, United States, 78208
Work at 3500 Square LLC
Overview
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Overview
Location:
San Antonio, TX Clearance Required:
Public Trust (ADP/IT-II); Tier 3 Investigation (NACLC) Citizenship Requirement:
U.S. Citizenship required.
We are seeking a dedicated
Tier 2 Systems Administrator - Continuous Operations Support
to join our team supporting a large-scale federal IT environment. This role is critical for maintaining 24x7 enterprise operations, troubleshooting complex issues, and ensuring secure, efficient system performance across both on-premise and cloud infrastructures.
Key Responsibilities: Provide 24x7 operational support and maintenance for enterprise infrastructure, including servers, firmware, software, and MED365 tenant environments. Troubleshoot and resolve issues involving server patches, software conflicts, configurations, and maintenance activities. Utilize DoD Information Assurance tools to validate patching and security control compliance. Manage Active Directory user accounts: create, modify, recover, restore AD objects, and administer Group Policy Objects (GPOs). Perform Azure AD user and access management, including monitoring resource usage and permissions. Support mobile device management and end-user computing issues, including device resets, configuration, and Device Approval Requests (DAR). Conduct GPO-related troubleshooting, security group management, and GPO application monitoring. Administer enterprise systems, including data recovery, password management, and machine unlock operations. Escalate complex issues to Tier 3 and manage communication for de-escalation back to Tier 1 support. Monitor enterprise infrastructure using tools such as SCOM, Quest Suite, and related monitoring solutions to detect and respond to anomalies. Produce technical documentation including Unscheduled Downtime Reports (UDRs), Situation Reports (SITREPs), After Action Reports (AARs), and service interruption records. Administer eDiscovery operations in MED365, supporting data collection, preservation, processing, and purging for litigation, security incidents, and audits. Ensure compliance with applicable DoD 8140 knowledge, skills, and abilities (KSATs) relevant to the role. Preferred Tools & Technologies:
Microsoft Active Directory, Azure AD, Group Policy Management Microsoft Endpoint Configuration Manager (MECM/SCCM), System Center Operations Manager (SCOM) Quest Tool Suite PowerShell scripting, Microsoft 365 (MED365), Windows Server eDiscovery and litigation support platforms Minimum Qualifications:
Hands-on experience in enterprise-level system administration, supporting both on-premise and cloud environments. Proficiency with Active Directory administration, GPO management, and Windows Server technologies. Strong troubleshooting skills for server patching, system conflicts, and security compliance. Familiarity with monitoring tools such as SCOM or Quest Suite. Ability to obtain and maintain a Public Trust (Tier 3/NACLC) clearance. Excellent written and verbal communication skills. Education & Certifications:
Candidates must meet one of the following combinations:
Certification:
Microsoft 365 Certified: Fundamentals or Microsoft Certified: Azure Fundamentals AND one of the following: Bachelor's degree in Information Technology, Cybersecurity, or a related discipline. Possession of a DoD 8140 Baseline Certification (e.g., A+, CND, Network+, GLSC). Completion of relevant DoD or Military Technical Training (training code list available upon request).
This is a unique opportunity to contribute to mission-critical enterprise operations in a high-impact federal environment. Join our team and help ensure the stability and security of enterprise IT systems supporting vital national missions.
Apply today and elevate your career in enterprise IT operations support.