Systems Administrator Security Clearance

Position: Systems Administrator with Security Clearance
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- Description Join a team committed to a mission! At Leidos , we deliver innovative solutions through the efforts of our diverse and talented people who are dedicated to our customers’ success. We empower our teams, contribute to our communities, and operate sustainable. Everything we do is built on a commitment to do the right thing for our customers, our people, and our community.

Our Mission, Vision, and Values guide the way we do business. ​ ​ The   Decision Advantage Business Area at Leidos has an opening for an experienced Secret cleared Systems Administrator   in our Orlando, FL office .
Our team supports the Department of the Air Force (DAF)   Battle Network   and supporting infrastructure. The   system administrator will be involved in   day-to-day   activities and strategic   long-term   maturation of complex systems.
Details are as follows:
​ Primary   Responsibilities:
* ​ Support operation of a high-performance compute cluster.
* ​ Investigate, diagnose, and resolve acute system faults.
* ​ Maintain software deployments.
* ​ Maintain security compliance.
* ​ Monitor and   maintain   hardware.
* ​ Interface with user support staff.
* ​ Provide   support to   Tie r and Tier 2   (including Domain. Administration, System Administration, and Network Administration).
* ​ Monitor and   maintain   smooth operation of computer systems,   applications   and user experience.
* ​ Provide effective communication across multi-functional teams,   stakeholders   and end users.
* ​ Other opportunities may include learning   new technologies , skill sets, and career advancement.
​

Basic Qualifications:

    * ​ Bachelors   degree with 8 years' relevant experience; 6 years' experience with a   Master’s Degree ; 4 years with PhD. Four (4) additional years   of experience will be considered in lieu of degree.

* Active and current Secret clearance with ability to obtain and maintain TS/SCI clearance. ​ Must be a U.S. citizen. * ​ Demonstrated   knowledge of   Windows and   Linux systems   proficiency. * ​ Demonstrated   knowledge and experience with file systems. * ​ Demonstrated k nowledge and experience with concepts of high-performance computing system operations, including cluster management, multi-user login environments, job scheduling, and networked file systems.

* ​ Demonstrated e xperience with   MPI , high-speed low-latency network fabrics, parallel file systems, and/or GPUs. * ​ Demonstrated k nowledge and experience with system security   and   maintaining   compliance with Security Technical Implementation Guides (STIGs). * ​ Strong written and verbal communication skills.

​ Preferred Qualifications   * ​ IAT Level II certification. * ​ Red Hat Linux systems administration experience. * ​ Demonstrated experience with   Ansible and shell scripting .
* Experience with Git and   CICD   Pipelines.
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:
January 28, 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 $92,300.00 - $ 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.

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…