Linux Systems Administrators - All Levels
Leidos· Defense· Jun 15, 2026 · 5mo agoPosted 134 days ago
Annapolis Junction, MD
In office
Full-time
Senior
$116K–$210K
5+ years exp
Before you apply
Ghost Signal:
Open since June 15, 2026 — 134 days, and still accepting applications.
Job description
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
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: 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.
Application prep
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Keywords to mirror
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Benefits
Benefits detected in the listing.
401(K)
Pto
Paid Time Off