> Markdown version of [/jobs/ext/2697223-network-engineer-ii](https://www.wearedevelopers.com/jobs/ext/2697223-network-engineer-ii). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Network Engineer II - **Company:** Leidos, Inc. - **Location:** O'Fallon, IL, United States - **Experience:** Experienced - **Salary:** $59,150.0 - $106,925.0 - **Contract:** Permanent contract - **Skills:** Microsoft Access, Microsoft Word, Microsoft Excel, JIRA, Synchronous Optical Networking, Microsoft Outlook, Cyber Security, Information Systems, System Configuration, Multiplexing, Internet Protocol, Multi-protocol Systems, Local Area Networks, Microsoft Office, Network Control, Routing, Network Management System, Microsoft PowerPoint, Network Routers, Computer Network Operations, Juniper, SolarWinds (Software), Cisco - **Published:** September 3, 2026 - **Apply:** https://www.themuse.com/jobs/leidos/network-engineer-ii-cfebf6 ## About the Role * Bachelor's degree and 2+ 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. * Working knowledge 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. ## Description The Digital Sector of Leidos has multiple openings in our Joint Fires Network (JFN) NOC for Network Engineer II supporting our Global Solutions Management-Operations II (GSMO-II) program at Scott AFB, IL., 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)., * 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. ## Related Videos - [How Cisco embraced a DevOps culture within its network engineering team](https://www.wearedevelopers.com/videos/99-how-cisco-embraced-a-devops-culture-within-its-network-engineering-team) - [What makes Cybersecurity different for critical infrastructure?](https://www.wearedevelopers.com/videos/571-what-makes-cybersecurity-different-for-critical-infrastructure) - [Improving quality with Agentic AI with Rovo Dev and Xray](https://www.wearedevelopers.com/videos/2005-improving-quality-with-agentic-ai-with-rovo-dev-and-xray) - [Security Pitfalls for Software Engineers](https://www.wearedevelopers.com/videos/726-security-pitfalls-for-software-engineers) - [Computer Vision from the Edge to the Cloud done easy](https://www.wearedevelopers.com/videos/263-computer-vision-from-the-edge-to-the-cloud-done-easy) - [Collaboration Quantified: Lessons from Open Source Developer Networks](https://www.wearedevelopers.com/videos/1422-collaboration-quantified-lessons-from-open-source-developer-networks) ## Related Articles - [How We Built a Worry-Free System That Runs for 10+ Years – And What We’d Do Again](https://www.wearedevelopers.com/magazine/751-how-we-built-a-worry-free-system-that-runs-for-10-years-and-what-we-d-do-again) - [What’s the Difference between a Junior, Mid, and Senior Developer?](https://www.wearedevelopers.com/magazine/238-what-s-the-difference-between-a-junior-mid-and-senior-developer) - [Fully Remote Software Engineer Jobs](https://www.wearedevelopers.com/magazine/447-fully-remote-software-engineer-jobs) - [Where to Find Entry-Level Software Engineering Jobs](https://www.wearedevelopers.com/magazine/397-where-to-find-entry-level-software-engineering-jobs) - [The Most Popular IT Jobs on the Market](https://www.wearedevelopers.com/magazine/376-the-most-popular-it-jobs-on-the-market) - [Is Software Engineering Over-Saturated?](https://www.wearedevelopers.com/magazine/418-is-software-engineering-over-saturated)