AT&T hiring Windows System Administrator (SA2) (Government) in Columbia, MD | LinkedIn (2025)

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.

RIS I is the delivery of regional IT services to the end user. We offer support of end user devices including desktop, workplace peripherals, and voice and video devices. We support local and campus area networks, including wireless and cable plant.

AT&T has an opening for a Windows System Administrator to maintain data, voice and/or video network hardware and systems.

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:

• The Windows System Administrator will be responsible for 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 engineer new solutions.
• Provides 2nd and 3rd Tier support, 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.
• Develops local administrative policies and procedures to ensure database and system integrity.
• Conducts meetings with the clients and other support groups to establish critical dates and LAN and client/server requirements, determines training needs and develops system administration guidelines tailored to the work environment.
• 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.

Required Clearance: TS/SCI with polygraph. (#ts/sci) (#polygraph)

Required Qualifications: Must have ten (10) years of experience in hands on systems administration. Bachelor’s degree in Computer Science, Information Assurance, Information Security System Engineering, or related discipline from an accredited college or university is preferred. DoD 8570 IAT Level 2 Certification Security + Required.

Ready to join our team? Apply today!Our Windows System Administrator (SA2) (Government) earns between $72,000 - $147,100 yearly. Not to mention all the other amazing rewards that working at AT&T offers. Individual starting salary within this range may depend on geography, experience, expertise, and education/training.

Joining our team comes with amazing perks and benefits:

• 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)
• 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 phone

Weekly Hours:40

Time Type:Regular

Location:Columbia, Maryland

It is the policy of AT&T to provide equal employment opportunity (EEO) to all persons regardless of age, color, national origin, citizenship status, physical or mental disability, race, religion, creed, gender, sex, sexual orientation, gender identity and/or expression, genetic information, marital status, status with regard to public assistance, veteran status, or any other characteristic protected by federal, state or local law. In addition, AT&T will provide reasonable accommodations for qualified individuals with disabilities.