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Lead Senior Systems Administrator (Unix/Linux) (Government)

AT&T

Engineering Jobs

Lead Senior Systems Administrator (Unix/Linux) (Government)

full-timePosted: Oct 29, 2025

Job Description

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:

40

Time Type:

Regular

Location:

Newburg, Maryland

It 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.

Locations

  • Newburg, Maryland, United States

Salary

110,000 - 185,000 USD / yearly

Estimated Salary Rangemedium confidence

120,000 - 180,000 USD / yearly

Source: ai estimated

* This is an estimated range based on market data and may vary based on experience and qualifications.

Skills Required

  • Unix/Linux system administrationintermediate
  • Backup/recoveryintermediate
  • Software managementintermediate
  • System securityintermediate
  • Hardware/software installationintermediate
  • Troubleshootingintermediate
  • Tuningintermediate
  • TCP/IPintermediate
  • Major security tools (e.g., firewalls)intermediate
  • Vulnerability managementintermediate
  • Virtualizationintermediate
  • Cloud integrationintermediate
  • Hybrid deploymentsintermediate

Required Qualifications

  • 6 years of professional experience in Unix/Linux system administration (experience)
  • Expertise in backup/recovery, software management, system security, hardware/software installation, troubleshooting, and tuning (experience)
  • Familiarity with TCP/IP and major security tools (e.g., firewalls) plus vulnerability management (experience)
  • Required Certification: IAT Level III (experience)
  • Required Clearance: TS/SCI (experience)

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

Benefits

  • general: Medical/Dental/Vision coverage
  • general: 401(k) plan
  • general: Tuition reimbursement program
  • general: Paid Time Off and Holidays (based on date of hire, at least 23 days of vacation each year and 9 company-designated holidays)
  • general: Paid Parental Leave
  • general: Paid Caregiver Leave
  • general: Additional sick leave beyond what state and local law require may be available but is unprotected
  • general: Adoption Reimbursement
  • general: Disability Benefits (short term and long term)
  • general: Life and Accidental Death Insurance
  • general: Supplemental benefit programs: critical illness/accident hospital indemnity/group legal
  • general: Employee Assistance Programs (EAP)
  • general: Extensive employee wellness programs
  • general: 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

Target Your Resume for "Lead Senior Systems Administrator (Unix/Linux) (Government)" , AT&T

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AT&T logo

Lead Senior Systems Administrator (Unix/Linux) (Government)

AT&T

Engineering Jobs

Lead Senior Systems Administrator (Unix/Linux) (Government)

full-timePosted: Oct 29, 2025

Job Description

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:

40

Time Type:

Regular

Location:

Newburg, Maryland

It 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.

Locations

  • Newburg, Maryland, United States

Salary

110,000 - 185,000 USD / yearly

Estimated Salary Rangemedium confidence

120,000 - 180,000 USD / yearly

Source: ai estimated

* This is an estimated range based on market data and may vary based on experience and qualifications.

Skills Required

  • Unix/Linux system administrationintermediate
  • Backup/recoveryintermediate
  • Software managementintermediate
  • System securityintermediate
  • Hardware/software installationintermediate
  • Troubleshootingintermediate
  • Tuningintermediate
  • TCP/IPintermediate
  • Major security tools (e.g., firewalls)intermediate
  • Vulnerability managementintermediate
  • Virtualizationintermediate
  • Cloud integrationintermediate
  • Hybrid deploymentsintermediate

Required Qualifications

  • 6 years of professional experience in Unix/Linux system administration (experience)
  • Expertise in backup/recovery, software management, system security, hardware/software installation, troubleshooting, and tuning (experience)
  • Familiarity with TCP/IP and major security tools (e.g., firewalls) plus vulnerability management (experience)
  • Required Certification: IAT Level III (experience)
  • Required Clearance: TS/SCI (experience)

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

Benefits

  • general: Medical/Dental/Vision coverage
  • general: 401(k) plan
  • general: Tuition reimbursement program
  • general: Paid Time Off and Holidays (based on date of hire, at least 23 days of vacation each year and 9 company-designated holidays)
  • general: Paid Parental Leave
  • general: Paid Caregiver Leave
  • general: Additional sick leave beyond what state and local law require may be available but is unprotected
  • general: Adoption Reimbursement
  • general: Disability Benefits (short term and long term)
  • general: Life and Accidental Death Insurance
  • general: Supplemental benefit programs: critical illness/accident hospital indemnity/group legal
  • general: Employee Assistance Programs (EAP)
  • general: Extensive employee wellness programs
  • general: 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

Target Your Resume for "Lead Senior Systems Administrator (Unix/Linux) (Government)" , AT&T

Get personalized recommendations to optimize your resume specifically for Lead Senior Systems Administrator (Unix/Linux) (Government). Takes only 15 seconds!

AI-powered keyword optimization
Skills matching & gap analysis
Experience alignment suggestions

Check Your ATS Score for "Lead Senior Systems Administrator (Unix/Linux) (Government)" , AT&T

Find out how well your resume matches this job's requirements. Get comprehensive analysis including ATS compatibility, keyword matching, skill gaps, and personalized recommendations.

ATS compatibility check
Keyword optimization analysis
Skill matching & gap identification
Format & readability score

Tags & Categories

TelecommunicationsTelecommunications

Answer 10 quick questions to check your fit for Lead Senior Systems Administrator (Unix/Linux) (Government) @ AT&T.

Quiz Challenge
10 Questions
~2 Minutes
Instant Score

Related Books and Jobs

No related jobs found at the moment.