Space Development Agency (SDA) Network Engineer II

Our customer is the Defense Information Systems Agency (DISA) and 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). The Leidos Digital Modernization Sector and Global Solutions Management-Operations II (GSMO-II) have an opening in our Space Development Agency (SDA) Operations Support Cell for a Network Engineer at Scott AFB, IL. This position requires U.S. citizenship and an active Secret clearance. Responsible for performing the following duties: Execute network operations to include configuration and analysis of customer circuits across optical and electro-optical multiplexers, , Time Division Multiplexing (TDM), routers, and switches. Architect alternate routing strategies and redundancy frameworks to ensure mission continuity during outages or degradation events. Perform advanced systems analysis to evaluate network performance, resiliency, capacity, and scalability Perform real-time circuit redesign (alternate routing) to restore customer connectivity during scheduled, unscheduled outages, and maintenance actions. Track scheduled outages, informing the SDA community. Work directly with supported customers and engineers across other NOCs to ensure maximum network availability to minimize or eliminate mission and operational impact. Proactively monitor network alarms across platform specific network management tools. 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. Maintain an offline configuration management database of all SDA site and circuits that traverse the DISN. Assess, identify and recommend resolutions to various network incidents and/or deficiencies leveraging knowledge in one or more of following: routers, switches, crypto devices, Ciena, CISCO, Juniper, MSPP, DWDM, Optical Switching, SONET/SDH, satellite communications.

Basic Qualifications:

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. Must have an active DoD Secret security clearance. Requires working knowledge and understanding of both Transport and IP network topologies.

Preferred Qualifications:

Tech control facility or cyber transport experience Circuit actions 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.

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:

May 5, 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.