Senior Systems Administrator Security Clearance

Position: Senior Systems Administrator 10k sign on bonus with Security Clearance
Location: Annapolis Junction

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- Description Leidos has a new and exciting opportunity for a Senior Systems Administrator in our Intelligence 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! As a Senior Systems Administrator you will play a vital role in maintaining the efficiency and reliability of our IT systems. You will oversee the infrastructure, address technical challenges, and implement solutions to ensure seamless operations. Your expertise will contribute to the optimization and security of our systems, making a significant impact on the organization's technological capabilities.

Responsibilities Include:

* Providing System Administration and SSP/Security support for the program in both Linux and Windows environments.
* Implement, troubleshoot, and maintain IT systems.

* Manage daily IT system configuration and operations.

* Assist users with IT systems access and usage.

* Monitor and resolve issues for client/server/storage/network devices and mobile devices.

* Communicate status updates to agency management and internal customers.

* Optimize system operations and perform capacity planning.

* Configure and manage UNIX and Windows operating systems, ensuring system integrity and performance.

Basic Qualifications:

* Bachelor’s degree in a relevant technical field with 10+ years of experience, or No degree with 15+ years of related professional experience and IAT Level II certification (e.g., Security+ CE, SSCP)
* Experience providing Sr. Linux (Red Hat/Rocky/CentOS) and Latte Art / SSP, STE/STN support.

* Clearance Required:

Must have an active TS/SCI with Polygraph Desired

Qualifications:

* Puppet, Ansible, FreeIPA, Red Hat KVM, Net App support, Support JIRA, Confluence.
* Scripting experience (Bash, Python, Perl, etc.)
* Experience with Proxmox
* Experience with Docker, Kubernetes or other containerization tools. 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! conmd kqw At Leidos, we don’t want someone who "fits the mold"—we want someone who melts it down and builds something better.

This is a role for the restless, the over-caffeinated, the ones who ask, “what’s next?” before the dust settles on “what’s now.” If you’re already scheming step 20 while everyone else is still debating step 2… good. You’ll fit right in. Original Posting:
November 14, 2025 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 $ - $ 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.

About Leidos Leidos is an industry and technology leader serving government and commercial customers with smarter, more efficient digital and mission innovations. Headquartered in Reston, Virginia, with 47,000 global employees, Leidos reported annual revenues of approximately $16.7 billion for the fiscal year ended January 3, 2025. For more information, visit  . Pay and Benefits Pay and benefits are fundamental to any career decision.

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