System Administrator

Description

Looking for an opportunity to make an impact?

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. 

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 offices. This is an exciting opportunity to use your experience helping the Air Force Research Lab, Air Force Lifecycle Management Center, and other DoD missions. Your role will be to support our diverse portfolio of programs through a combination of laboratory infrastructure design and buildout, maintaining systems, meeting and maintaining security guidelines, hardware interfacing and integration, and laboratory experimentation.

Primary Responsibilities:

• Implement and maintain SIL systems and infrastructure for complex network
• 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

Basic Qualifications:

• Bachelor’s degree in computer science, information technology, system administration or related field and 2+ years of prior relevant experience or a Master’s degree with 0-2 years of experience in above mentioned technical fields. (An additional 4 years of relevant experience may be considered in lieu of degree) 
• Must be a US 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 PowerShell
• Experience managing systems in both Linux and Windows environments
• Ability to communicate effectively in writing and verbally from informal one-on-one discussions or in a small group environment.
• Work well within a team and independently with minimal supervision.
• Ability to work within a dynamic work environment, ability to handle multiple tasks at once (multi-task).
• Strong desire to grow and learn new technologies.
• Must be a US Citizen.
• Must have an active DoD TS clearance with the ability to obtain TS/SCI
• Strong interpersonal and communication skills

Preferred Qualifications:

• Relevant certificates to systems administration work (Ex: CompTIA Security+, Network+, Server+, CCNA, RHCSA)
• Familiar with Agile Methodologies, preferably SCRUM or Kanban
• Familiar with DHCP, DNS, Certificate Authority, PXE, Active Directory, Linux Identity Management (RHEL idm, FreeIPA), and other tools
• Experience working with virtualization technologies (Proxmox preferred)
• Experience with security scanning, monitoring, and patching in Windows and Linux environments
• Experience with live and virtual 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 environments 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

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:

July 17, 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 $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.

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. That's why we craft compensation packages that reflect the importance of the work we do for our customers. Employment benefits include competitive compensation, Health and Wellness programs, Income Protection, Paid Leave and Retirement. More details are available at .

Securing Your Data

Beware of fake employment opportunities using Leidos’ name. Leidos will never ask you to provide payment-related information during any part of the employment application process (i.e., ask you for money), nor will Leidos ever advance money as part of the hiring process (i.e., send you a check or money order before doing any work). Further, Leidos will only communicate with you through emails that are generated by the Leidos.com automated system – never from free commercial services (e.g., Gmail, Yahoo, Hotmail) or via WhatsApp, Telegram, etc. If you received an email purporting to be from Leidos that asks for payment-related information or any other personal information (e.g., about you or your previous employer), and you are concerned about its legitimacy, please make us aware immediately by emailing us at .

If you believe you are the victim of a scam, contact your local law enforcement and report the incident to the .

Commitment to Non-Discrimination

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.