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Senior Linux System Administrator - Careers at Leidos

Leidos

Senior Linux System Administrator - Careers at Leidos

full-timePosted: Feb 3, 2026

Job Description

Join Leidos as a Senior Linux System Administrator

Leidos is seeking a Senior Linux System Administrator to deliver on-site IT support for the ESA V program, serving Department of Justice customers in Fairfax, VA. This role demands expertise in Red Hat Enterprise Linux (RHEL) within high-security environments, supporting mission-critical infrastructure.

Primary Responsibilities

  • Conduct advanced systems analysis, design, integration, and implementation of complex RHEL systems.
  • Manage full lifecycle of Red Hat administration: installation, configuration, security hardening, tuning, and troubleshooting.
  • Leverage business and technical principles to engineer solutions for challenging problems.
  • Develop technical documentation, reports, charts, and deliver presentations to stakeholders.
  • Collaborate independently and in teams at the enterprise data center.

Basic Qualifications

  • Bachelor’s Degree + 12+ years Unix SysAdmin experience (RHEL8/9 focus); high school diploma + equivalent experience considered.
  • Active Secret clearance required.
  • 3+ years Unix deployment in DISA-secured environments.
  • 3+ years Red Hat Satellite usage, updates, and maintenance.
  • Experience with Dell Servers, iDRAC, VMWare, AWS, Azure; RHEL8/9, Satellite, PCS Clustering, SELINUX enforcing, PAM for 2FA (RSA/AD), Ansible playbooks.
  • Strong system process documentation skills.

Preferred Qualifications

  • VMWare, Azure, AWS familiarity.
  • RHEL 10, Ansible Automation Platform, fapolicyd, DISA hardening, Docker/Containers, ServiceNow.
  • Advanced ksh/bash scripting, user requirements analysis, verbal/written communication, independent troubleshooting, team collaboration, customer interfacing, analytical problem-solving.

Require active Secret clearance. Pay Range: $116,350 - $210,325 USD/year. Leidos outpaces the status quo—join disruptors driving mission success.

Locations

  • Fairfax, Virginia, United States

Salary

116,350 - 210,325 USD / yearly

Estimated Salary Rangehigh confidence

116,350 - 210,325 USD / yearly

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

Skills Required

  • RHEL8 and RHEL9 Administrationintermediate
  • Red Hat Satellite Server Managementintermediate
  • Ansible Playbooks for Automationintermediate
  • SELINUX in Enforcing Modeintermediate
  • PAM Configuration for 2FAintermediate
  • VMWare, AWS, Azure, Dell Serversintermediate

Required Qualifications

  • Bachelor’s Degree with 12+ years Unix SysAdmin experience or equivalent (experience)
  • Active Secret security clearance (experience)
  • 3+ years deploying Unix in DISA secured environments (experience)
  • 3+ years Red Hat Satellite experience (experience)
  • Proficiency in Ansible automation and system documentation (experience)

Responsibilities

  • Perform high-level systems analysis, evaluation, design, integration, and implementation of complex Red Hat systems
  • Handle installation, configuration, securing, performance tuning, and troubleshooting of Red Hat systems
  • Apply advanced technical principles to solve difficult engineering problems
  • Prepare technical reports, documentation, charts, graphs, presentations, and briefings
  • Provide on-site support at DOJ enterprise data center in Fairfax, VA

Benefits

  • general: Competitive salary range $116,350 - $210,325
  • general: Comprehensive health, dental, and vision insurance
  • general: 401(k) matching and retirement plans
  • general: Professional development and certification reimbursement
  • general: Generous paid time off and flexible work options

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Leidos logo

Senior Linux System Administrator - Careers at Leidos

Leidos

Senior Linux System Administrator - Careers at Leidos

full-timePosted: Feb 3, 2026

Job Description

Join Leidos as a Senior Linux System Administrator

Leidos is seeking a Senior Linux System Administrator to deliver on-site IT support for the ESA V program, serving Department of Justice customers in Fairfax, VA. This role demands expertise in Red Hat Enterprise Linux (RHEL) within high-security environments, supporting mission-critical infrastructure.

Primary Responsibilities

  • Conduct advanced systems analysis, design, integration, and implementation of complex RHEL systems.
  • Manage full lifecycle of Red Hat administration: installation, configuration, security hardening, tuning, and troubleshooting.
  • Leverage business and technical principles to engineer solutions for challenging problems.
  • Develop technical documentation, reports, charts, and deliver presentations to stakeholders.
  • Collaborate independently and in teams at the enterprise data center.

Basic Qualifications

  • Bachelor’s Degree + 12+ years Unix SysAdmin experience (RHEL8/9 focus); high school diploma + equivalent experience considered.
  • Active Secret clearance required.
  • 3+ years Unix deployment in DISA-secured environments.
  • 3+ years Red Hat Satellite usage, updates, and maintenance.
  • Experience with Dell Servers, iDRAC, VMWare, AWS, Azure; RHEL8/9, Satellite, PCS Clustering, SELINUX enforcing, PAM for 2FA (RSA/AD), Ansible playbooks.
  • Strong system process documentation skills.

Preferred Qualifications

  • VMWare, Azure, AWS familiarity.
  • RHEL 10, Ansible Automation Platform, fapolicyd, DISA hardening, Docker/Containers, ServiceNow.
  • Advanced ksh/bash scripting, user requirements analysis, verbal/written communication, independent troubleshooting, team collaboration, customer interfacing, analytical problem-solving.

Require active Secret clearance. Pay Range: $116,350 - $210,325 USD/year. Leidos outpaces the status quo—join disruptors driving mission success.

Locations

  • Fairfax, Virginia, United States

Salary

116,350 - 210,325 USD / yearly

Estimated Salary Rangehigh confidence

116,350 - 210,325 USD / yearly

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

Skills Required

  • RHEL8 and RHEL9 Administrationintermediate
  • Red Hat Satellite Server Managementintermediate
  • Ansible Playbooks for Automationintermediate
  • SELINUX in Enforcing Modeintermediate
  • PAM Configuration for 2FAintermediate
  • VMWare, AWS, Azure, Dell Serversintermediate

Required Qualifications

  • Bachelor’s Degree with 12+ years Unix SysAdmin experience or equivalent (experience)
  • Active Secret security clearance (experience)
  • 3+ years deploying Unix in DISA secured environments (experience)
  • 3+ years Red Hat Satellite experience (experience)
  • Proficiency in Ansible automation and system documentation (experience)

Responsibilities

  • Perform high-level systems analysis, evaluation, design, integration, and implementation of complex Red Hat systems
  • Handle installation, configuration, securing, performance tuning, and troubleshooting of Red Hat systems
  • Apply advanced technical principles to solve difficult engineering problems
  • Prepare technical reports, documentation, charts, graphs, presentations, and briefings
  • Provide on-site support at DOJ enterprise data center in Fairfax, VA

Benefits

  • general: Competitive salary range $116,350 - $210,325
  • general: Comprehensive health, dental, and vision insurance
  • general: 401(k) matching and retirement plans
  • general: Professional development and certification reimbursement
  • general: Generous paid time off and flexible work options

Target Your Resume for "Senior Linux System Administrator - Careers at Leidos" , Leidos

Get personalized recommendations to optimize your resume specifically for Senior Linux System Administrator - Careers at Leidos. Takes only 15 seconds!

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

Check Your ATS Score for "Senior Linux System Administrator - Careers at Leidos" , Leidos

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

Jobs in Fairfax, VALeidos CareersLinux Admin JobsGovernment ITDefense ContractorsUnited States HiringEngineeringInformation TechnologySecurity

Answer 10 quick questions to check your fit for Senior Linux System Administrator - Careers at Leidos @ Leidos.

Quiz Challenge
10 Questions
~2 Minutes
Instant Score

Related Books and Jobs

No related jobs found at the moment.