Principal Linux Systems Administrator

Leidos

$116K — $210K *
Information Technology
11 - 15 years of experience
Job Overview by Ladders

Qualifications

  • 15+ years of experience as a System Administrator in complex environments
  • Bachelor's in a technical field or equivalent experience
  • Proficiency in LINUX, Windows, and Virtualization technologies
  • Active Top Secret/SCI security clearance with Polygraph required
  • Strong problem-solving and analytical skills

Responsibilities

  • Ensure systems comply with STE/STN security standards
  • Manage user accounts and access to systems with security tools
  • Configure and manage UNIX and Windows operating systems
  • Provide IT support and troubleshooting for various devices
  • Assist users with IT system access and escalated issues
  • Optimize system performance and plan for capacity needs
  • Support dispatch systems and maintain security for hardware/software

Benefits

  • Eligible for a $10,000 sign-on bonus
  • Collaborative work environment
  • Opportunity for professional growth and development
  • Access to state-of-the-art technology and tools
  • Comprehensive support for training and certifications
Full Job Description
Join our team as a Linux Systems Administrator, where you'll provide crucial support for the implementation, troubleshooting, and maintenance of Information Technology (IT) systems. You'll manage IT system infrastructure and processes, ensuring the smooth operation of client/server/storage/network devices, mobile devices, and more. Your role will involve configuring and managing UNIX and Windows operating systems, troubleshooting, maintaining network integrity, and enhancing system performance.

This position is eligible for a 10k Sign on Bonus!

Primary Responsibilities:
  • Maintain STE/STN Compliance: Ensure systems meet security and compliance standards.
  • Account and Access Management: Manage accounts, network rights, and access to systems and equipment, implementing security procedures and tools.
  • System Configuration and Management: Configure and manage UNIX and Windows operating systems, install/load software, troubleshoot, maintain network integrity, and implement system enhancements.
  • IT Support and Troubleshooting: Provide day-to-day IT support, monitoring, and problem resolution for client/server/storage/network devices and mobile devices.
  • User Assistance: Assist users in accessing and using IT systems, providing support for escalated tickets and detailed analysis.
  • System Optimization and Capacity Planning: Optimize system operations and resource utilization, perform system capacity analysis and planning.
  • Dispatch System and Hardware Support: Support dispatch systems and hardware issues, configure and install system hardware/software, and maintain server and domain security requirements.

BasicQualifications:
  • Experience: Fifteen (15) or more years of experience as a System Administrator (SA) supporting programs and contracts of similar scope, type, and complexity.
  • Education: Bachelor's degree in a technical discipline from an accredited college or university. Five (5) years of additional SA experience may be substituted for a bachelor's degree bringing the required experience to 20 years.
  • Technical Skills: Experience with LINUX, Windows and Virtualization
  • Security Clearance: Must have an active Top Secret/SCI with Polygraph


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conmd

Original Posting:
May 26, 2026

Pay Range:
Pay Range $116,350.00 - $210,325.00

The Leidos pay range for this job level is a general guideline only and not a guarantee of compensation or salary. Additional factors considered in extending an offer include (but are not limited to) responsibilities of the job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, applicable bargaining agreement (if any), or other law.

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