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From the employer's careers site First seen 12 Nov 2026

Network Engineer

Leidos Shiloh, IL mid full-time

Salary

$59,150 - $106,925 per year

Apply on Leidos

Description

We are seeking a Network Engineer to support the Leidos Digital Modernization Sector/Global Solutions Management-Operations II (GSMO-II) contract. As a Network Engineer, you will perform sustainment, maintenance, problem, and change management services to ensure secure, reliable, and uninterrupted availability of the Department of Defense IP networks.

Responsibilities:

  • Perform engineering tasks related to the design, implementation, and integration of network changes and sustainment of customer systems in a Wide Area Network environment.
  • Conduct planning and performance of analytical research, design development, and other tasks to align with customer specifications.
  • Control network systems to ensure 99% or better system uptime and connectivity.
  • Ensure efficient delivery of contract capabilities using industry standards and repeatable processes.
  • 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.

Requirements:

  • Currently possess DoD 8750 certification at IAT level II, Security+ CE or equivalent.
  • Currently possess an active DoD Secret security clearance.
  • 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.

Preferred Qualifications:

  • Equally proficient in Juniper and Cisco configuration, troubleshooting, and design.
  • Experience with Cisco IOS XR, JUNOS, and Cisco IOS codes.
  • Pearl or other language scripting capable of running backup config 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's 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.
  • Extensive 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.

Shift Hours: Swing Shift (3 pm – 11 pm) Monday - Friday

Education and Experience: Requires BS degree and 2-4 years of prior relevant experience or Masters with less than 2 years of prior relevant experience.

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Skills

Required

  • VLAN
  • routing
  • IP addressing
  • sub-netting
  • Palo Alto firewalls
  • F5 appliances
  • Splunk systems
  • BGP
  • ISIS
  • OSPF
  • Static routing
  • Cisco routers
  • Juniper routers
  • ports and protocols

Nice to have

  • Juniper configuration
  • Cisco configuration
  • Cisco IOS XR
  • JUNOS
  • Cisco IOS codes
  • Pearl scripting
  • IPSEC configuration
  • MPLS configuration
  • IPV6 configuration
  • Security certification
  • DDoS
  • Crypto configuration
  • Layer 2/3 VPN
  • Firewall knowledge
  • Physical cable plant and wiring experience

Ready to apply?

You apply with the employer directly. Their original posting is here: https://leidos.wd5.myworkdayjobs.com/en-US/External/job/Shiloh-IL/Network-Engineer-II_R-00196752

Apply on Leidos