IP Network Engineer

Overview

Our customer, the Defense Information Systems Agency (DISA), provides, operates, and assures command and control of the Defense Information System Network (DISN) services to its customers, the Department of Defense (DoD) and national security organizations. This position directly supports the DISA-provided capabilities and services.

The Leidos Digital Modernization Sector/Global Solutions Management-Operations II (GSMO-II) contract has an opening for a Network Engineer at Scott AFB, IL
. The Network Engineer will perform sustainment, maintenance, Problem and Change management services to help ensure secure, reliable, and uninterrupted availability of the Department of Defense IP networks.

This position requires U.S. citizenship with ability to obtain Interim Secret clearance. An active Secret clearance is preferred.

• Perform engineering tasks related to the design, implementation, and integration of network changes and sustainment of customer systems in an Wide Area Network environment.
• Conduct planning and performance of analytical research, design development, and other manager assigned tasks to align with customer specifications.
• Proactively monitor in the control network systems to ensure 99% or better system uptime and connectivity.
• Ensure efficient delivery of contract capabilities using industry standards and repeatable processes.
• Provide recommendations to mitigate risks, control costs and schedule variance, and effectively manage large scale, integrated projects.
• Perform a variety of analytical tasks which include hardware and software design and implementation.

• Currently possess DoD 8750 certification at IAT level II, Security+ CE or equivalent to meet requirement.
• Experience analyzing VLAN, routing, IP addressing and sub-netting.
• Experience with Palo Alto firewalls, F5 appliances, and Splunk systems
• Experience troubleshooting and configuring IP networks using at least one of the following routing methods: BGP, ISIS or OSPF, Static routing.
• Experience with either service provider or enterprise IP networks using an interface on Cisco (ESR and ASR) and/or Juniper routers.
• Experience with ports and protocols.
• Ability to obtain a DoD Secret security clearance.

• Proficient in either Juniper or Cisco configuration, troubleshooting, and design.
• Experience with Cisco IOS XR, JUNOS, and Cisco IOS codes.
• Pearl or other language scripting capable of running backup confits and other scripting to pull information from Cisco/Juniper routers
• IPSEC configuration, troubleshooting, and design experience.
• MPLS configuration, troubleshooting, and design experience.
• IPV6 configuration, troubleshooting, and design experience.
• Security certification and/or knowledge of DDoS and other attack vectors experienced in today' networks.
• Crypto configuration, troubleshooting, and design experience.
• Layer 2/3 VPN and Firewall knowledge and experience.
• Physical cable plant and wiring experience.
• Certifications with major network system vendors such as Cisco are a strong plus.
• Excellent project, technical, interpersonal, presentation and problem management skills.
• Network integration experience for a variety of network protocol standards.
• Ability to communicate orally, and in writing, detailed technical information on troubleshooting and implementation efforts.
• Familiarization of DOD regulations and directives.
• Currently possess an active DoD Secret security clearance.

• Requires BS degree or equivalent experience and less than 2 years prior relevant experience.

Pay Range $50,700.00 - $91,650.00

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 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

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