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Principal Linux Infrastructure Engineer - Careers at Leidos

Leidos

Principal Linux Infrastructure Engineer - Careers at Leidos

full-timePosted: Feb 3, 2026

Job Description

Principal Linux Infrastructure Engineer

Join Leidos' Intel Security Sector's Analysis Solutions Business Area and drive national security missions through cutting-edge IT infrastructure engineering. This senior-level role demands expertise in Linux environments, cloud and on-premises systems, and proactive security measures.

Core Responsibilities

  • Lead installation, configuration, administration, support, and maintenance of enterprise Linux systems, hardware, and cloud resources.
  • Implement performance tuning, storage optimization, and critical system patches across hybrid infrastructures.
  • Monitor technology obsolescence, manage upgrades, and evaluate alternatives to maintain peak availability and capacity.
  • Collect and analyze metrics for IT services, contributing to project KPIs and SLAs.
  • Conduct risk assessments, mitigation strategies, vendor trade studies, and documentation to uphold service continuity and disaster recovery.
  • Apply security mitigations and best practices to protect sensitive environments.

Basic Qualifications

  • Bachelor’s degree plus 12+ years of relevant experience (or equivalent).
  • Active TS/SCI with polygraph clearance required.
  • Deep experience securing Linux servers, automation tools, shell scripting, and package management.
  • Proven ability to innovate on complex tasks, develop methodologies, and deliver under metrics.
  • Must be available for on-call support.

Why Leidos?

Leidos outpaces the status quo in Security Engineering, CNO, SIGINT, and Cryptographic Key Management. Enjoy competitive benefits like 401K with 6% match, flexible schedules, education support, and more. Make a real impact in national security.

Location: Bethesda, MD. Full-time, mid-to-senior level. Salary range: $116,350 - $210,325 USD annually.

Locations

  • Bethesda, Maryland, 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

  • Linux server administrationintermediate
  • Infrastructure automation toolsintermediate
  • Shell scriptingintermediate
  • Software package managementintermediate
  • Security hardening best practicesintermediate
  • Performance tuning and monitoringintermediate

Required Qualifications

  • Bachelor’s degree with 12+ years relevant experience or equivalent (experience)
  • Active TS/SCI with polygraph clearance (experience)
  • Experience with on-premises and cloud infrastructures (experience)
  • Proven innovation in complex IT assignments (experience)
  • Availability for on-call support (experience)

Responsibilities

  • Install, configure, administer, and maintain Linux systems and cloud resources
  • Apply critical patches, tune performance, and define storage needs
  • Monitor operations, collect metrics, and ensure SLA compliance
  • Perform risk assessments, mitigation analysis, and vendor trade studies
  • Ensure continuity of operations including disaster recovery

Benefits

  • general: Paid Time Off
  • general: 11 paid Holidays
  • general: 401K with 6% company match and immediate vesting
  • general: Flexible Schedules
  • general: Discounted Stock Purchase Plans
  • general: Technical Upskilling and Education Support
  • general: Parental Paid Leave

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Leidos logo

Principal Linux Infrastructure Engineer - Careers at Leidos

Leidos

Principal Linux Infrastructure Engineer - Careers at Leidos

full-timePosted: Feb 3, 2026

Job Description

Principal Linux Infrastructure Engineer

Join Leidos' Intel Security Sector's Analysis Solutions Business Area and drive national security missions through cutting-edge IT infrastructure engineering. This senior-level role demands expertise in Linux environments, cloud and on-premises systems, and proactive security measures.

Core Responsibilities

  • Lead installation, configuration, administration, support, and maintenance of enterprise Linux systems, hardware, and cloud resources.
  • Implement performance tuning, storage optimization, and critical system patches across hybrid infrastructures.
  • Monitor technology obsolescence, manage upgrades, and evaluate alternatives to maintain peak availability and capacity.
  • Collect and analyze metrics for IT services, contributing to project KPIs and SLAs.
  • Conduct risk assessments, mitigation strategies, vendor trade studies, and documentation to uphold service continuity and disaster recovery.
  • Apply security mitigations and best practices to protect sensitive environments.

Basic Qualifications

  • Bachelor’s degree plus 12+ years of relevant experience (or equivalent).
  • Active TS/SCI with polygraph clearance required.
  • Deep experience securing Linux servers, automation tools, shell scripting, and package management.
  • Proven ability to innovate on complex tasks, develop methodologies, and deliver under metrics.
  • Must be available for on-call support.

Why Leidos?

Leidos outpaces the status quo in Security Engineering, CNO, SIGINT, and Cryptographic Key Management. Enjoy competitive benefits like 401K with 6% match, flexible schedules, education support, and more. Make a real impact in national security.

Location: Bethesda, MD. Full-time, mid-to-senior level. Salary range: $116,350 - $210,325 USD annually.

Locations

  • Bethesda, Maryland, 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

  • Linux server administrationintermediate
  • Infrastructure automation toolsintermediate
  • Shell scriptingintermediate
  • Software package managementintermediate
  • Security hardening best practicesintermediate
  • Performance tuning and monitoringintermediate

Required Qualifications

  • Bachelor’s degree with 12+ years relevant experience or equivalent (experience)
  • Active TS/SCI with polygraph clearance (experience)
  • Experience with on-premises and cloud infrastructures (experience)
  • Proven innovation in complex IT assignments (experience)
  • Availability for on-call support (experience)

Responsibilities

  • Install, configure, administer, and maintain Linux systems and cloud resources
  • Apply critical patches, tune performance, and define storage needs
  • Monitor operations, collect metrics, and ensure SLA compliance
  • Perform risk assessments, mitigation analysis, and vendor trade studies
  • Ensure continuity of operations including disaster recovery

Benefits

  • general: Paid Time Off
  • general: 11 paid Holidays
  • general: 401K with 6% company match and immediate vesting
  • general: Flexible Schedules
  • general: Discounted Stock Purchase Plans
  • general: Technical Upskilling and Education Support
  • general: Parental Paid Leave

Target Your Resume for "Principal Linux Infrastructure Engineer - Careers at Leidos" , Leidos

Get personalized recommendations to optimize your resume specifically for Principal Linux Infrastructure Engineer - Careers at Leidos. Takes only 15 seconds!

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

Check Your ATS Score for "Principal Linux Infrastructure Engineer - 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 Bethesda MDLeidos CareersLinux InfrastructureCleared IT JobsUnited States HiringEngineeringInformation TechnologySecurity

Answer 10 quick questions to check your fit for Principal Linux Infrastructure Engineer - Careers at Leidos @ Leidos.

Quiz Challenge
10 Questions
~2 Minutes
Instant Score

Related Books and Jobs

No related jobs found at the moment.