Windows System Administrator – Government

AT&T

Windows System Administrator role at AT&T managing IT systems and supporting secure operations. Collaborating with clients, vendors, and teams for effective troubleshooting in a 24x7 environment.

Posted 6/18/2026full-timeColumbia • Maryland • 🇺🇸 United StatesMid-LevelSenior💰 $57,200 - $90,700 per yearWebsite

About the role

Key responsibilities & impact

Administrating day-to-day IT systems to include system availability, backup/restore, configuration changes, maintaining and patching both physical and virtual.
Installs new software releases, system upgrades, evaluates and installs patches and resolves software related problems.
Troubleshoot hardware and software.
Performs system backups and recovery, possibly using non-standard tools and methods.
Maintains data files and monitors system configuration to ensure data integrity.
Familiar with standard concepts, practices, and procedures for Devop environments.
Ability to research and recommend new solutions.
Coordinating timely resolution of problems related to computing hardware and software.
Involves consulting with clients, hardware and software vendors, application programmers and the networking (WAN/LAN) support groups.
Includes direct technical support for all products delivered in this 7x24 hour environment.
Responsible for monitoring and responding to technical hardware and software problems utilizing a variety of testing tools and techniques for desktop, servers, LAN/WAN, voice or video networks.
Performs capacity planning, system administration, system tuning, problem analysis, and hardware/software upgrades.
Develops administrative policies, documentation, and procedures to ensure that assets are properly maintained and operated.
May install and configure workstations, servers, printers, and data, voice or video network components.
Performs testing and establishes system acceptance criteria on current and new hardware and software.
Coordinates the delivery and staging of client/server hardware and software including Ethernet wiring for the workstation and file server platforms.
Configures and builds the server hardware and network interfaces to meet client and vendor technical specifications.
Completes documentation needed for inventory and installation planning.
Builds client profiles and system configurations for software distribution equipment.

Requirements

What you’ll need

High school diploma or equivalent required; associate degree, technical certification, military training, or equivalent hands-on experience in information technology, systems administration, or a related technical field preferred.
Basic understanding of Windows operating systems, workstation/server administration, user account support, software installation, patching, and system troubleshooting.
Foundational knowledge of IT infrastructure concepts, including physical and virtual servers, desktop systems, LAN/WAN connectivity, backups, system monitoring, and hardware/software configuration.
Ability to follow established procedures for system administration, incident response, documentation, inventory updates, and installation planning in a mission-focused operational environment.
Demonstrated ability to troubleshoot routine hardware, software, and connectivity issues and escalate complex issues to senior technical staff, vendors, application teams, or network support groups as appropriate.
Strong attention to detail with the ability to maintain accurate records, support system configuration integrity, and contribute to technical documentation and standard operating procedures.
Effective verbal and written communication skills with the ability to coordinate with internal teams, customers, vendors, and technical support groups in a professional manner.
Ability to work in a fast-paced, 24x7 support environment and participate in on-call, shift, or after-hours support as required by program needs.
Ability to learn new tools, technologies, and processes quickly and apply guidance from senior administrators to support system availability, reliability, and security.
Must be able to meet applicable RIS I program, customer, security, and access requirements, including any required background investigation, clearance eligibility, or site-specific access requirements.

Benefits

Comp & perks

Medical/Dental/Vision coverage
401(k) plan
Tuition reimbursement program
Paid Time Off and Holidays (based on date of hire, at least 23 days of vacation each year and 9 company-designated holidays) *Pro-rated when working less than 40 hrs/wk.
Paid Parental Leave
Paid Caregiver Leave
Additional sick leave beyond what state and local law require may be available but is unprotected
Adoption Reimbursement
Disability Benefits (short term and long term)
Life and Accidental Death Insurance
Supplemental benefit programs: critical illness/accident hospital indemnity/group legal
Employee Assistance Programs (EAP)
Extensive employee wellness programs
Employee discounts up to 50% off on eligible AT&T mobility plans and accessories, AT&T internet (and fiber where available) and AT&T wireline phone

ATS Keywords

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Applicant Tracking System Keywords

Tip: use these terms in your resume and cover letter to boost ATS matches.

Hard Skills & Tools

system administrationtroubleshootingbackup and recoverysoftware installationpatchingconfiguration managementcapacity planningsystem monitoringhardware/software upgradesnetwork configuration

Soft Skills

attention to detaileffective communicationproblem-solvingteam coordinationability to learn quicklydocumentation skillscustomer serviceincident responsetime managementadaptability

Certifications

technical certificationmilitary training