Network Engineer III

Leidos; Illinois; On-site; USD 79,000 - 133,000; Full time

Job summary

Leidos in the Digital Sector seeks a Network Engineer III for the Joint Fires Network (JFN) NOC supporting the GSMO-II program at Scott AFB, Illinois. The role focuses on maintaining 24x7 network availability across routing, switching, and telecom elements to support DISA DISN services.

Responsibilities include real-time circuit analysis, incident documentation, change management, and collaboration with government and internal teams to minimize mission impact while leveraging tools like

Qualifications

• 4+ years of related network engineering experience or equivalent.
• DoD-8570 IAT Level 2 (Security+ CE or equivalent) required.
• Active DoD Top Secret clearance required.
• Ability to work in a 24x7 shift environment.

Responsibilities

• Operate and configure networks across routers and switches to support DISA services.
• Perform real-time circuit redesign and outage restoration actions.
• Coordinate with internal/external customers and agencies to maximize network availability.
• Monitor alarms and use network mgmt tools to identify issues.
• Execute change management tasks including hardware/software configurations.
• Document outages, degradations, escalations, and resolutions throughout incidents.
• Assess network incidents and recommend fixes across Cisco/Juniper and related tech.

Skills

24x7 shift operations

Transport IP topologies

Network monitoring

Education

Bachelor's degree

Tools

Solarwinds

JIRA

Cisco

Juniper

MS Office

Job description

Description

The Digital Sector of Leidos has

Description

The Digital Sector of Leidos has multiple openings in our Joint Fires Network (JFN) NOC for a Network Engineer III supporting our Global Solutions Management-Operations II (GSMO-II) program at Scott AFB, IL.

Position Summary

Our customer, Defense Information Systems Agency (DISA), acts as the provider of GIG/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 GIG capabilities and services in the 24x7 DISA Global Operations Center (DGOC).

Primary Responsibilities

• Execute network operations to include configuration and analysis of customer circuits across optical and electro-optical multiplexers, routers, and switches.
• Perform real-time circuit redesign (alternate routing) to restore customer connectivity during scheduled and unscheduled outages and maintenance actions.
• Work directly with internal and external customers, external government agencies, and other engineering tiers to ensure maximum network availability to minimize or eliminate mission and operational impact.
• Proactively monitor network alarms across platform specific network management tools.
• Perform a variety of change management tasks which include hardware replacement, software configurations, and ASI management.
• Utilize incident management applications to document all aspects of reported outages/degradations, isolations, escalations, and resolutions during the lifecycle of a service impacting network incident.
• Assess, identify and recommend resolutions to various network incidents and/or deficiencies leveraging knowledge in one or more of following: routers, switches, crypto devices, routing, CISCO, Juniper, MSPP, optical transport network, MPLS, time division multiplexing, SDH/SONET.

Basic Qualifications

• Bachelor's degree and 4+ years of prior relevant experience; or equivalent combination of education and/or experience.
• Hold DoD-8570 IAT Level 2 baseline certification (Security+ CE or equivalent) prior to start date.
• Able to work in a 24x7 shift work environment.
• Possess deep understanding of both Transport and IP network topologies.
• Must have an active DoD Top Secret security clearance.

Preferred Qualifications

• Tech control facility or cyber transport experience
• Circuit actions and vendor experience
• IP/Transport architecture experience
• Solarwinds and JIRA experience
• Telco NOC, inside or outside plant experience.
• Experience with MS Office suite, i.e. Outlook, Excel, Word, Access, PowerPoint, TEAMs
• Experience with one or more of the following: alarm surveillance, fault management, LAN maintenance, performance management, change management.

JFN

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.

Pay Range

Pay Range $73,450.00 - $132,775.00

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.

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.