Lead Senior Systems Administrator (Unix/Linux) (Government)
Newburg, Maryland
Job Description:
This position requires office presence of a minimum of 5 days per week and is only located at customer's site. Work to be performed in Dahlgren, VA.
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.
The AT&T will provide comprehensive Information Technology Infrastructure Support Services to the US Navy, delivering asset management, network operations, system design and configuration, and facility support to ensure effective day-to-day operations at several Naval Bases.
AT&T has an opening for a Lead Senior Systems Administrator (Unix/Linux) to provide advanced technical support to the US Navy. In this role, you will deliver reliable and secure IT infrastructure services across multiple Naval bases. This position plays a critical role in ensuring system availability, security compliance, and operational effectiveness in support of mission requirements.
Job Duties/Responsibilities:
- Install, configure, monitor, and maintain Unix/Linux servers.
- Apply security patches, updates, and system hardening in compliance with DoD guidelines.
- Manage backups, restores, and disaster recovery.
- Troubleshoot performance and operational issues.
- Support virtualization, cloud integration, and hybrid deployments.
Required Clearance:
TS/SCI (#tssci)
Required Qualifications:
- 6 years of professional experience in Unix/Linux system administration.
- Expertise in backup/recovery, software management, system security, hardware/software installation, troubleshooting, and tuning.
- Familiarity with TCP/IP and major security tools (e.g., firewalls) plus vulnerability management.
- Required Certification: IAT Level III
Our Lead Senior Systems Administrator (Unix/Linux) earn between $110,000 – $185,000. 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 phone
Weekly Hours:
40Time Type:
RegularLocation:
Newburg, 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-88669 Date posted 10/29/2025
Benefits
Your needs? Met. Your wants? Considered. Take a look at our comprehensive benefits.
- Paid Time Off
- Tuition Assistance
- Insurance Options
- Discounts
- Training & Development
Our hiring process
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