Linux Systems Administrators - All Levels

About the role

Linux Systems Administrators / Engineers are needed across several Leidos prime programs in our Intelligence Sector's Cyber & Analytics Business Area (CABA). Our talented team is at the forefront of Security Engineering, Computer Network Operations (CNO), Mission Software, Analytical Methods and Modeling, Signals Intelligence (SIGINT), and Cryptographic Key Management.

At Leidos, we offer competitive benefits, including Paid Time Off, 11 paid Holidays, 401(k) with a 6% company match and immediate vesting, Flexible Schedules, Discounted Stock Purchase Plans, Technical Upskilling, Education and Training Support, Parental Paid Leave, and much more.

Join us and make a difference in National Security.

Linux Systems Administrator roles are eligible for a $10,000 Sign-On Bonus.

Job Summary

Seeking Linux Systems Administrators to support mission-focused Intelligence Community environments. Multiple experience levels are available.

Required Skills

• Linux systems administration (RHEL, Rocky Linux, CentOS, or similar distributions)
• STE/STN support
• Virtualization and/or container technologies
• Scripting and automation (Bash, Python, Ansible, Salt, etc.)
• Storage management, networking, and system troubleshooting
• SSP compliance and secure system administration
• Experience supporting classified operational environments
• Security Clearance Requirement: Active TS/SCI with Polygraph

Desired Skills

• AWS cloud environments
• KVM, Proxmox, or similar virtualization platforms
• FreeIPA, Centrify, LDAP, or Active Directory
• PKI, TLS, and cryptographic technologies
• Mixed Linux/Windows environments
• Experience Levels
• Level 0: Bachelor's degree and 0-5 years of experience
• Level 1: Bachelor's degree and 5-10 years of experience
• Level 2: Bachelor's degree and 10-20 years of experience
• Level 3: Bachelor's degree and 20+ years of experience

Additional information

Candidates without a bachelor's degree will be considered on a case-by-case basis and may substitute an additional 5 years of relevant experience.

This posting is for multiple opportunities. Level placement, responsibilities, and compensation will be aligned to a candidate's experience and qualifications.

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If you're looking for comfort, keep scrolling. At Leidos, we outthink, outbuild, and outpace the status quo - because the mission demands it. We're not hiring followers. We're recruiting the ones who disrupt, provoke, and refuse to fail. Step 10 is ancient history. We're already at step 30 - and moving faster than anyone else dares.

Original Posting: June 15, 2026

For U.S. Positions: While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above.

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.