The Defense group at Leidos has a career opening for a Senior Network Administrator on a DISA contract. This role is primarily on the customer site at Scott AFB, IL. Administrator will provide support for assigned systems supporting Joint Worldwide Intelligence Communications System (JWICS).
PRIMARY RESPONSIBILITIES:- Works independently to perform configuration of assets to include switches, load balancers, routers, and Firewalls
- Perform routine maintenance, troubleshooting, updates and implement security measures on Cisco Juniper, and Dell network assets.
- Create and maintain system documentation, configuration management, and change management efforts accurately and timely
- Complete checklists and manage devices to mitigate cyber security controls and measures as required.
- Assist in the implementation of global projects for Network architecture upgrades by providing technical insight, projected necessary actions, timelines, and resource availability
- Implement recurring security requirements on network devices
- Communicate with external partners to coordinate troubleshooting efforts where required.
- Utilize moderate System Administration skills in both Linux and Windows environments to navigate current systems while managing network assets.
- Provide architectural and topology recommendations where efficiencies can be made.
BASIC QUALIFICATIONS- Bachelor's degree in a relevant technical discipline with 8+ years of overall related experience, or additional years of experience will suffice in lieu of degree
- Active DoD Top Secret Security Clearance and ability to obtain a DoD Top Secret with SCI.
- At least 3 years Linux and/or Windows familiarity
- Currently possess DoD 8750 certification at IAT level II, e.g. Security+ce or higher.
- Currently possess an active Top Secret security clearance with the ability to acquire a Top Secret/SCI clearance.
PREFERRED QUALIFICATIONS: - Integration of Network Management (NM) and Element Management (EM) systems with network performance, trouble ticketing, and security subsystems highly desired.
- Experience with a ticketing system such as BM, Service Now, ITSM or Remedy.
- ITIL v3 Foundation certified
- Experience working with virtual environments.
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:January 13, 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 - $166,850.00
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.
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