Description

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

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.

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 www.Leidos.com.

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 www.leidos.com/careers/pay-benefits.

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 LeidosCareersFraud@leidos.com.

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

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.