Systems Administrator (Government)
- Location
- Columbia, Maryland
- Work mode
- On-site
- Employment type
- Full-time
About the job
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.
Our National Security team supports our Federal Government by providing, operating and assuring critical voice, video and collaboration services for the full spectrum of national security operations.
AT&T has an opening for a System Administrator to support the day-to-day IT systems for our customized network solution in support of the federal government. The job duties of the System Administrator are as follows:
- 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.
- Administrating day-to-day Linux and/or Windows IT systems to include system availability, backup/restore, configuration changes, maintaining and patching both physical and virtual.
- Must be knowledgeable in the support and administration of VMWare, hosting and managing virtual machines, and data storage such as Network Attached Storage (NAS) and Storage Area Network (SAN) hardware.
- Install and configure workstations, servers, printers, and data, voice, or video network components.
- Install and maintain software releases.
- Maintain data confidentiality, integrity, and availability.
- Consult with clients, hardware and software vendors, application programmers, and the network team.
- Provide technical support for development, test, and production environments.
- Perform capacity planning, system administration, system tuning, problem analysis and hardware/software upgrades.
- Develop administrative policies, documentation, and procedures to ensure that assets are properly maintained and operated.
- Perform testing and establish system acceptance criteria on current and new hardware and software.
- Determine training needs and develop system administration guidelines tailored to the work environment.
- Configure and build the server hardware and network interfaces to meet client and vendor technical specifications.
- Build client profiles and system configurations for software distribution equipment.
- Respond to system alerts and engage in troubleshooting and problem resolution.
Required Clearance: TS/SCI with polygraph. (#ts/sci) (#polygraph)
Required Qualifications: Three (3) years of experience as a Systems Administrator in programs and contracts of similar scope, type, and complexity are required. Bachelor’s degree in Computer Engineering, Computer Science, Applied Science, Electrical Engineering, Math, Information Assurance, Information Security System Engineering, or related discipline from an accredited college or university, a developer nanodegree, or equivalent work experience, is required.
Ready to join our team? Apply Today!
Our Systems Administrator (Government) earns $89,200 - $170,000 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) *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
Weekly Hours: 40 Time Type: Regular Location: Columbia, Maryland AT&T and its subsidiaries are committed to equal employment opportunity. All hiring, promotion, and other employment decisions remain merit-based and free from discrimination on the basis of race, color, religion, religious creed, national origin, ancestry, age, sex, sexual orientation, gender, gender identity, gender expression, physical disability, mental disability, pregnancy, medical condition, genetic information, marital status, citizenship status, military status, veteran status, or any other characteristic protected by federal, state, or local laws. In addition, AT&T will provide reasonable accommodations to qualified individuals with disabilities. AT&T is a fair chance employer and does not initiate a background check until an offer is made. Click here to learn more or request an application accommodation here .
From AT&T Mobility Services LLC's careers page (Workday), checked 27 Oct 2026.
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Posted 27 Oct 2026 · checked 27 Oct 2026 · Report this job