Leidos Inc
Principal Linux Systems Administrator
Leidos Inc, Bay Ridge Junction, Maryland, United States
Overview
Leidos has a new and exciting opportunity for a Principal Linux Systems Administrator in our National Security Sector's (NSS) Cyber & Analytics Business Area (CABA). Our talented team is at the forefront in 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, 401K 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! Job Summary
Leidos is seeking a Principal Linux Systems Administrator with demonstrated experience supporting and optimizing hybrid infrastructure environments. The ideal candidate will bring strong expertise in Linux system administration, infrastructure automation, and modern HCI platforms, along with foundational Windows support. Responsibilities
Administer and maintain Linux systems across enterprise environments Create and manage automation scripts using Ansible for provisioning and configuration Support Windows Server environments to ensure cross-platform compatibility Deploy and manage containerized workloads using Docker and Kubernetes Operate and optimize hyperconverged infrastructure platforms, including Rancher and Harvester Integrate Proxmox virtualization into existing systems and workflows Implement identity and access controls using Centrify across hybrid deployments Basic Qualifications
Bachelor's degree
in a relevant field with
15+ years of experience , or
No degree
with
20+ years of related professional experience
and
IAT Level II certification
(e.g., Security+ CE, SSCP) Quantifiable Linux Systems Administration experience in enterprise environments Strong proficiency in Ansible scripting for automation and provisioning Foundational experience in Windows Systems Administration Hands-on exposure to virtualization tools including ProxMox Familiarity with container technologies and orchestration (Docker, Kubernetes, Rancher, Harvester) Operational understanding of HCI platforms (e.g., Nutanix, Dell VxRail, Azure Stack HCI, etc.) Clearance Required: Must have an active TS/SCI with Polygraph Additional Information
At Leidos, the opportunities are boundless. We challenge our staff with interesting assignments that allow them to thrive professionally and personally. For us, helping you grow your career is good business. We look forward to learning more about you—apply today! Come break things (in a good way). Then build them smarter. We’re the tech company everyone calls when things get weird. We don’t wear capes (they’re a safety hazard), but we do solve high-stakes problems with code, caffeine, and a healthy disregard for "how it's always been done." Compensation
Original Posting: July 30, 2025 Pay Range: $112,450.00 - $203,275.00 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 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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Leidos has a new and exciting opportunity for a Principal Linux Systems Administrator in our National Security Sector's (NSS) Cyber & Analytics Business Area (CABA). Our talented team is at the forefront in 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, 401K 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! Job Summary
Leidos is seeking a Principal Linux Systems Administrator with demonstrated experience supporting and optimizing hybrid infrastructure environments. The ideal candidate will bring strong expertise in Linux system administration, infrastructure automation, and modern HCI platforms, along with foundational Windows support. Responsibilities
Administer and maintain Linux systems across enterprise environments Create and manage automation scripts using Ansible for provisioning and configuration Support Windows Server environments to ensure cross-platform compatibility Deploy and manage containerized workloads using Docker and Kubernetes Operate and optimize hyperconverged infrastructure platforms, including Rancher and Harvester Integrate Proxmox virtualization into existing systems and workflows Implement identity and access controls using Centrify across hybrid deployments Basic Qualifications
Bachelor's degree
in a relevant field with
15+ years of experience , or
No degree
with
20+ years of related professional experience
and
IAT Level II certification
(e.g., Security+ CE, SSCP) Quantifiable Linux Systems Administration experience in enterprise environments Strong proficiency in Ansible scripting for automation and provisioning Foundational experience in Windows Systems Administration Hands-on exposure to virtualization tools including ProxMox Familiarity with container technologies and orchestration (Docker, Kubernetes, Rancher, Harvester) Operational understanding of HCI platforms (e.g., Nutanix, Dell VxRail, Azure Stack HCI, etc.) Clearance Required: Must have an active TS/SCI with Polygraph Additional Information
At Leidos, the opportunities are boundless. We challenge our staff with interesting assignments that allow them to thrive professionally and personally. For us, helping you grow your career is good business. We look forward to learning more about you—apply today! Come break things (in a good way). Then build them smarter. We’re the tech company everyone calls when things get weird. We don’t wear capes (they’re a safety hazard), but we do solve high-stakes problems with code, caffeine, and a healthy disregard for "how it's always been done." Compensation
Original Posting: July 30, 2025 Pay Range: $112,450.00 - $203,275.00 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 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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