Systems Administrator

Are you ready for your next career challenge?

The Non-Kinetic Effects Business Area, part of the Defense Sector at Leidos, currently has an opening for a cleared Systems Administrator to work in our Beavercreek, OH office. This is an exciting opportunity to use your experience supporting the Air Force Research Laboratory, Air Force Life Cycle Management Center, and other DoD missions. In this role, you will support a diverse portfolio of programs through laboratory infrastructure design and buildout, systems administration and maintenance, implementation and maintenance of security requirements, hardware interfacing and integration, and laboratory experimentation.

Primary Responsibilities:

• Implement and maintain Software-in-the-Loop (SIL) systems and infrastructure for complex networks.
• Document and communicate proposed solutions to integrated, cross-functional engineering teams in a fast-paced, highly technical environment.
• Stay up to date on security, systems administration, and management best practices and technologies.
• Participate in network and infrastructure design and reviews to ensure the delivery of quality products and enhance skillsets.
• Maintain security patches, perform user management, and support other systems administration activities in accordance with Leidos, government, and contract requirements.

Basic Qualifications:

• Bachelor’s degree in Computer Science, Information Technology, Systems Administration, or a related field with 2+ years of prior relevant experience, or a Master’s degree with 0–2 years of experience in the above-mentioned technical fields. An additional 4 years of relevant experience may be considered in lieu of a degree.
• Must be a U.S. Citizen.
• Must have an active DoD Top Secret clearance with the ability to obtain and maintain TS/SCI.
• Experience with scripting in Bash and PowerShell.
• Experience managing systems in both Linux and Windows environments.
• Ability to communicate effectively, both verbally and in writing, in settings ranging from informal one-on-one discussions to small group environments.
• Ability to work well within a team and independently with minimal supervision.
• Ability to work within a dynamic environment, manage multiple priorities, and handle multiple tasks simultaneously.
• Strong desire to grow and learn new technologies.
• Strong interpersonal and communication skills.

Preferred Qualifications:

• Relevant certifications related to systems administration work (e.g., CompTIA Security+, Network+, Server+, CCNA, RHCSA).
• Familiarity with Agile methodologies, preferably Scrum or Kanban.
• Familiarity with DHCP, DNS, Certificate Authority, PXE, Active Directory, Linux Identity Management (RHEL IdM, FreeIPA), and other related tools.
• Experience working with virtualization technologies (Proxmox preferred).
• Experience with security scanning, monitoring, and patching in Windows and Linux environments.
• Experience with live, virtual, and constructive environments to understand complex systems and troubleshooting.
• Familiarity with DoD systems and environments (STIG, FIPS, CUI processing, etc.).
• Familiarity with containerization technologies such as Docker or Podman.
• Experience with Kubernetes.
• Experience standing up and maintaining systems in limited or offline environments.
• Strong understanding of networking and how to build and configure a complex lab network.
• Prior experience working with the DoD.

Your opportunity to make an impact starts here.

Leidos is dedicated to making the world a safer place. This starts with helping our customers in the Defense Industry achieve their critical missions. Our dedicated Defense Group employees are solving critical challenges across the globe. 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 sustainably. 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.

NKE

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:

October 28, 2026

Pay Range:

Pay Range $59,150.00 - $106,925.00

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.