Find jobs
Pricing
Free Resume Checker
Sign in
Sign up
FIND JOBSPRICINGFREE RESUME CHECKERSIGN INSIGN UP
Jobs
/Network Engineer jobs
Leidos

Network Engineer II

Salary$59k – $107k
LocationShiloh, IL
Work modeon-site
Typefull-time
SeniorityMid
Experience2–4 yrs
Company size10,000+ people
First seenOct 10, 2026 · 1d ago
Verified live1d ago
At a glanceSummarised by Seekless from the posting.
Must have8
DoD 8750 certification at IAT level II, Security+ CE or equivalent
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 BGP, ISIS or OSPF, Static routing
Experience with either service provider or enterprise IP networks using Cisco (ESR and ASR) and/or Juniper routers
Experience with ports and protocols
Active DoD Secret security clearance
BS degree and 2-4 years of prior relevant experience or Masters with less than 2 years of prior relevant experience (or equivalent combination)
Nice to have15
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 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
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
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
Eligibility1
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
Skills
VLAN
routing
IP addressing
sub-netting
Palo Alto firewalls
F5 appliances
Splunk
BGP
ISIS
OSPF
Static routing
Cisco (ESR and ASR)
Juniper routers
IP networks
ports and protocols
Cisco IOS XR
JUNOS
Cisco IOS
Pearl
scripting
IPSEC
MPLS
IPV6
DDoS
Crypto
Layer 2/3 VPN
Firewall
About the company
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.
About the role
The Leidos Digital Modernization Sector/Global Solutions Management-Operations II (GSMO-II) contract has an opening for a Network Engineer. 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.
* Shift Hours: Swing shift (3pm – 11pm) *
Primary Responsibilities
Responsible for performing the following duties:
• 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 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.
Basic Qualifications
• 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.
• Currently possess an active DoD Secret security clearance.
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 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.
• 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.
Required 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. (Or equivalent combination of education and/or experience.)
GSMO
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:
October 8, 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.
More roles at Leidos
Industrial Security RepresentativeSenior Systems Integration & Test EngineerSoftware Application DeveloperSenior Cloud EngineerMechanical Engineer
Seekless
Seek less: one search across companies' own career pages, instead of a dozen job boards.
Product
Find jobsCompaniesPricingFree Resume CheckerBlog
Legal
AboutPrivacyTermsCookies
© 2026 SEEKLESS. ALL RIGHTS RESERVED.BUILT WITH CARE