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System Administrator (SA2) (Government)

AT&T
San Antonio, United Statesfull_timeVerifiedPosted 19 Jun 2025
💰 $153,000/yr($87,600/yr$153,000/yr)

About the role

Job Description:

AT&T Global Public Sector is a trusted provider of secure, IP enabled, cloud-based, network solutions and professional services to the Federal Government. We are dedicated to recruiting, developing and empowering a diverse, high-performing workforce that is passionate about what they do, committed to our shared values and dedicated to our customers’ mission.

MAROONMIDNIGHTS (MMN) Provide IT support and solutions developed for National Cryptologic University classified training enclaves and unclassified learning centers. including: Directory Services (DS): Architecture, governance, development, implementation, maintenance, and oversight of EIT’s Active Directories and Directory Management for all Enterprise Services on all domains. Desktop and Enclave Services (DES): governance, development, implementation, maintenance, and oversight of EIT’s desktop, mobile platforms, Virtual Desktop Infrastructures (VDI) and Trusted Thin Client (TTC).

AT&T has an opening for a System Administrator: To support implementation, troubleshooting and maintenance of information Technology (IT) systems Enterprise IT (EIT) mission obligations.

This position requires office presence a minimum of 5 days per week and is only located in the location(s) posted. No relocation is offered.

Description of Job Duties/Responsibilities: Provides support for implementation, troubleshooting and maintenance of information Technology (IT) systems. Manages IT system infrastructure and any processes related to these systems. Provides support to IT systems including day-to-day operations, monitoring and problem resolution for all of the client/server/storage/network devices, mobile devices, etc. Provides Tier 1 (Help Desk) and Tier 2 and Tier 3(Escalation) problem identification, diagnosis and resolution of problems.

  • Provides support for the escalation and communication of status to agency management and internal customers.
  • Provides support for the dispatch system and hardware problems and remains involved in the resolution process.
  •  Configures and manages UNIX, Linux and Windows operating systems and installs/loads operating system software, troubleshoots, maintains integrity and configures network components along with implementing operating systems enhancements to improve reliability and performance.
  • Provide support for implementation, troubleshooting and maintenance of IT systems.
  • Manage the daily activities of configuration and operation of IT systems.
  • Provide Tier 1 (Help Desk) problem identification, diagnosis and resolution of problems.
  • Provide assistance to users in accessing and using IT systems.
  • Provide Tier 1 (Help Desk) and Tier 2 (Escalation) problem identification, diagnosis and resolution of problems.
  • Perform account management, e.g. establishing, activating, modifying, disabling, and removing accounts.
  • Provide configuration management, implementation, and sustainment of compliance with applicable system security controls.
  • Perform periodic vulnerability scans of systems.
  • Provide support to IT systems including day-to-day operations, monitoring and problem resolution for all client/server/storage/network devices, mobile devices, etc.
  • Implement IAVA security patches and ensure patch status is recorded in appropriate systems of record.
  • Provide support for the escalation and communication of status to agency management and internal customers.
  • Optimize system operations and resource utilization, and perform system capacity analysis and planning.
  • Provide in-depth experience in trouble-shooting IT systems.
  • Provide detailed analysis and feedback to agency management and internal customers for escalated tickets.
  • Provide support for the dispatch system and hardware problems and remains involved in the resolution process.
  • Configure and manage UNIX, Linux and Windows (or other applicable) operating systems and installs/loads operating system software, troubleshoot, maintain integrity of and configure network components, along with implementing operating systems enhancements to improve reliability and performance.
  • Communicate and coordinate with the Information System Security Officer (ISSO) and Information System Owner (ISO) regarding system changes as part of the Change and Configuration Management Process.
  • Support the ISO by completing required milestones of Plan of Action & Milestones (POA&M)as directed and coordinate completion status with the ISSO to reflect status within the Source System of Record for Security Authorizations.
  • Ensure IT Assets remain compliant with Identity & Access Control Management (ICAM) policy.
  • Provide Tier 2 (Escalation) problem identification, diagnosis and resolution of p

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Company

AT&T

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