Systems Administrator

Job Overview

Leidos is dedicated to making the world a safer place by helping our customers in the defense industry achieve their critical missions. This role is a cleared Systems Administrator based in Beavercreek, OH, supporting a diverse portfolio of programs through laboratory infrastructure design, system maintenance, security compliance, hardware integration, and experimentation.

• Implement and maintain SIL systems and infrastructure for complex networks.
• Document and communicate proposed solutions with integrated, cross‑functional engineering teams in a fast‑paced, highly technical environment.
• Stay up to date on security, system, and management best practices and technologies.
• Participate in network and infrastructure design and review to ensure delivery of quality products and enhance skillsets.
• Maintain security patches, user management, etc., in accordance with Leidos, government, and contract requirements.

• Bachelor’s degree in computer science, information technology, system administration or related field with 2+ years of relevant experience, or a Master’s degree with 0–2 years of experience; additional 4 years of 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 a TS/SCI.
• Experience with scripting in Bash and Power Shell.
• Experience managing systems in both Linux and Windows environments.
• Ability to communicate effectively in writing and verbally in informal one‑on‑one discussions or in small group settings.
• Work well within a team and independently with minimal supervision.
• Ability to work in a dynamic environment and handle multiple tasks concurrently.
• Strong desire to grow and learn new technologies.
• Strong interpersonal and communication skills.

• Relevant certificates in systems administration (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 related tools.
• Experience with virtualization technologies (Proxmox preferred).
• Experience with security scanning, monitoring, and patching in Windows and Linux environments.
• Experience working with live and virtual constructive environments to troubleshoot complex systems.
• 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 environments in limited or offline settings.
• Strong understanding of networking and how to build and configure a complex lab network.
• Prior experience working with the DoD.

$59,150.00 – $

All qualified applicants will receive consideration for employment without regard to sex, race, ethnicity, age, national origin, citizenship, religion, physical or mental disability, medical condition, genetic information, pregnancy, family structure, marital status, ancestry, domestic partner status, sexual orientation, gender identity or expression, veteran or military status, or any other basis prohibited by law. Leidos will also consider for employment qualified applicants with criminal histories consistent with relevant laws.