Senior Systems Administrator (Government)
- Pay
- $89,200 – $192,000 per year
- Location
- Columbia, MD
- Listed
- Today
About the role
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. No relocation is offered. Actual work location will be Suitland, MD
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 Senior 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.
- Provide cross-functional systems and network administration support across Windows and Linux server environments, VMware infrastructure, and enterprise network devices, including switches, routers, firewalls, and related connectivity.
- Troubleshoot and resolve end-to-end infrastructure issues that may span servers, operating systems, virtualization platforms, network connectivity, and security configurations, coordinating across technical functional areas as needed.
- Perform hands-on operations and maintenance, including system and network monitoring, configuration changes, patching, upgrades, testing, incident resolution, documentation, and sustainment of integrated IT environments.
Clearance Requirements
Active TS/SCI with Poly (#tssci) (#polygraph)
Required Qualifications
- Bachelor's degree in related field.
- Eight years of relevant experience.
- Demonstrate understanding of Red Hat Linux, Trusted Linux, Windows 10, VMware.
Desired Qualifications
- Security+ or relevant certification.
Pay and benefits
Our Senior System Administrator's earn between $89,200 - $192,000. 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.
Benefits
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
Equal opportunity and legal notices
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's careers page, first listed on Rolev.ai on November 11, 2026. Rolev.ai is not the employer.
How Rolev.ai helps with this application
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Common questions
What is the salary for the Senior Systems Administrator (Government) role at AT&T?
The Senior Systems Administrator (Government) posting at AT&T states compensation of $89,200 – $192,000 per year. Final pay may depend on location, experience, and interview evaluation on AT&T's official career site.
Where is the Senior Systems Administrator (Government) job at AT&T located?
This Senior Systems Administrator (Government) position at AT&T is located in Columbia, MD. Always check AT&T's application page for specific state eligibility or relocation policies.
How do I apply for the Senior Systems Administrator (Government) position at AT&T?
This listing links directly to AT&T's Workday application page. You can apply directly on AT&T's site, or use Rolev.ai to check your resume fit, generate a zero-hallucination tailored resume and cover letter for this posting, and autofill the Workday application form in 1 click with the Rolev.ai Chrome extension. You always review the form and press Submit yourself.