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hirly last saw it live on 7 October 2026. See similar open roles below, or browse the live board.
Att
Principal System Administrator (Government)
Columbia, Maryland
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hirly's read of this role
- Role family
- Customer support
- Seniority
- Lead / management
- Stated salary
- $108,000 – $203,000 per year
- Country
- US
- Work mode
- On-site / unstated
- First seen by hirly
- 7 Oct 2026
Derived automatically from the posting.
the posting
This is a full-time onsite role based in the location(s) posted and is performed from the designated work location five days per week (Suitland, MD). No relocation is offered.
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 has an opening for a Principal System Administrator to support operations by maintaining, documenting, and administering enterprise IT systems.
Job Duties/Responsibilities:
- Maintain and develop system documentation to include product guides/manuals, SOPs, work logs and the Helpdesk ticket system.
- Provide system administration support
- Provide maintenance and support of existing software (problem report/trouble tick resolution) and hardware.
- Provide helpdesk support for collecting, controlling and disseminating, documenting and resolving all IT related questions and problems.
Clearance Requirements:
Active TS/SCI with poly (#tssci) (#polygraph)
Required Qualifications:
- Bachelor’s degree in a related field.
- 13 years of relevant experience.
- Demonstrate understanding of Red Hat Linux, Trusted Linux, Windows 10, VMware.
Desired Qualifications
Security+ or relevant certification.
Our Principal System Administrator's earn between $108,000 - $203,000. 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 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 .
Listed on hirly, a job board. hirly is not the employer: Att is hiring for this role.