System Administrator (Government)
Columbia, Maryland
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.
AT&T maintains active contracts and relationships with U.S. Government entities that require secure communications and systems. The operational need to add members to our support staff will continue to enable robust solutions in the IT Service and Support framework. The position supports both the active contracts as well as new contract support requests in facilitation of business capture, operations, and new technology insertion. Close relationship building with the customers ensures operational readiness and compliance.
AT&T has an opening for a Systems Administrator to join our growing team in support of active programs. The team operates as a cohesive group in both parallel solution / monitoring as well as individual contributions to special activities. This individual will provide position level assistance/leadership with the integration, configuration, deployment, security remediation, and operations of AT&T Managed Services for Public Sector customers serviced.
Description of Job Duties/Responsibilities:
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.
- Expertise in Linux-based operating systems: Red Hat, CentOS, VMware, KVM.
- Windows operating system environment support.
- Multi-platform support of OEM appliances, Windows and Linux VMware based appliances.
- Patching and remediation of monitored systems and networks with the team – Understanding of Cyber Security and related support infrastructure / application solutions.
- Tier 2+ service support, interfacing with Tier 1 and 3+.
- IT service delivery, assurance, and operations.
- Assist in developing new shared services (product deployments, customized solutions – Internal/External as needed).
- Providing technical implementation support for security compliance and system accreditation processes.
Required Clearance: Public Trust (#publictrust)
Required Qualifications:
- Bachelor's degree in related computer / security related tracks.
- Desired is a minimum 3 years of relevant experience in Security and systems supporting: Virtualization, Windows and Linux Computing Solution Engineering and architecture solutions.
- Experience with on premise, cloud and hybrid-cloud based deployments.
- US citizenship is required; able to obtain and retain federal security clearance.
- Strong written and verbal communication skills.
- Demonstrated leader with team-oriented interpersonal skills; ability to effectively interface with a broad range of people and roles.
Desired Qualifications:
- Active certifications in the IAT/IAM realm (DoDD 8570/ DoDD 8140) – such as Security+.
- Comparable VMware certifications, RHCE, MS Certifications, Security Certs in general to IAT/IAM levels 1-3.
- Working knowledge of common operating systems (Windows, Linux, etc.) and basic endpoint security principles.
- Extensive experience in security operations and supported systems named/unnamed within the posting.
Ready to join our team? Apply today!
Our System Administrator (Government) earns between $72,000 - $180,000 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 phone
Weekly Hours:
40Time Type:
RegularLocation:
Columbia, MarylandIt 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. AT&T is a fair chance employer and does not initiate a background check until an offer is made.
Job ID R-104493 Date posted 03/24/2026
Benefits
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- Paid Time Off
- Tuition Assistance
- Medical and dental plans
- Discounts
- Training & Development
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