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Defense Red Switch Network; DRSN Support Technician III

Job in Joliet, Will County, Illinois, 60432, USA
Listing for: LightGrid, LLC
Full Time position
Listed on 2026-06-16
Job specializations:
  • IT/Tech
    Cybersecurity, IT Support, Systems Engineer, Network Security
Salary/Wage Range or Industry Benchmark: 60000 USD Yearly USD 60000.00 YEAR
Job Description & How to Apply Below
Position: Defense Red Switch Network (DRSN) Support Technician III

Defense Red Switch Network (DRSN) Support Technician III – Scott AFB, IL

Light Grid is hiring for a Defense Red Switch Network (DRSN) Support Technician III to work at Scott AFB, IL.

Must be open to all shifts and have an active Top Secret clearance.

Requirements: U.S. citizenship with an active Top Secret clearance.

Job Responsibilities
  • Create, update, and resolve unclear problems and issues faced, utilizing a broad knowledge of the network architecture and the Service Now platform.
  • Notify necessary points of contacts based on essential or heightened awareness networks, circuits or location incidents.
  • Execute network operations, including configuration and analysis of customer circuits across Time Division Multiplexing (TDM) and Session Initiated Protocol (SIP) trunks.
  • Work directly with customers, UC stakeholders, and leaders internal and external to the organization across multiple areas to ensure maximum network availability and minimize or eliminate mission and operational impact.
  • Proactively monitor network alarms across platform-specific network management tools.
  • Support all customers, including providing global situational awareness support.
  • Verify that service has been restored upon resolution of all customer-initiated tickets.
  • Provide timely situational awareness to leadership and the impacted community within discovery and ticket creation using approved communication methods.
  • Record, assess, track, and monitor incident tickets escalated to operational infrastructure.
  • 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.
  • Perform configuration maintenance on route plans, route lists, device profiles, calling search spaces, and route partitions.
  • Assess, identify, and recommend resolutions to various network incidents and/or configuration deficiencies.
  • Develop and/or recommend solutions and processes pertaining to UC and DRSN operations.
Minimum 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 Top Secret security clearance.
  • Requires general understanding of both voice infrastructure and IP network topologies.
Desired Qualifications
  • Tech control facility or cyber transport experience.
  • Experience with MS Office suite, e.g. Outlook, Excel, Word, Access, PowerPoint, Teams.
  • Experience with one or more of the following: alarm surveillance, call routing, session-initiated protocol, media call flow, packet capture analysis, Juniper IP technologies.
  • Knowledge in one or more of the following: routers, switches, crypto devices, CISCO, Juniper, video teleconferencing (VTC), voice services, EVoIP/ECVoIP, VoSIP, fly-away kits, Defense Red Switch Network (DRSN), DSN Core.
Required Education & Experience
  • Typically requires high school diploma or equivalent and 2 – 4 years of prior relevant experience.
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