Defense Red Switch Network (DRSN) Support Technician
- Level
- Mid
Not stated in the posting: salary, work type, visa.
Open. First seen 3 October 2026.
About the role
Overview:
Job Title: Defense Red Switch Network (DRSN) Support Technician
Security Clearance: Top Secret
Location: Scott AFB, IL
(Due to the nature of the work and contract requirements, U.S. Citizenship is required.)
Description:
C3EL is seeking a cleared professional to support our critical mission at Scott AFB in Illinois. 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 Technician will directly support the DISA-provided GIG capabilities and services in our 24x7 DISA Global Operations Center (DGOC).
(This role is considered "Mission Essential" and may require supporting rotating shift work, which includes nights and weekends.)
Responsibilities will include, but not be limited to:
- Create/update/resolve unclear problems and issues faced, utilizing a broad knowledge of the network architect, utilizing the Service Now platform.
- Notify necessary points of contacts based on essential or heightened awareness networks, circuits or location incidents .
- Execute network operations to include 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 to minimize or eliminate mission and operational impact.
- Support all customers to include 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 as outlined.
- Proactively monitor network alarms across platform specific network management tools.
- 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:
- U.S. Citizenship.
- An active, in-scope US Government issued Top Secret clearance.
- 2-4 yrs of relevant technical experience.
- Current DoD-8570 IAT Level 2 baseline certification (Security+ CE, or equivalent).
- Ability to work in a 24/7 shift work environment and travel up to 10%.
- Knowledge in one or more of 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.
- Requires general understanding of both voice infrastructure and IP network topologies.
Desired Qualifications:
- Tech control facility or cyber transport experience.
- Circuit actions experience.
- Experience with MS Office suite, i.e. 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.
Education:
- A minimum of a High School diploma or equivalent is required.
What this role asks for
In most of C3EL's ads
Cisco
Named in most of its open postings, whatever the role.
Read against C3EL's other open postings on this site.
The team: Network / Systems Administration
This role is one of 8 open in Network / Systems Administration.
WHAT THE TEAM WORKS WITH, ACROSS ITS POSTINGS
Cisco (8 of 8), Excel (4 of 8), Networking (2 of 8)
OTHER ROLES ON THIS TEAM
- JRSS Network Technician posted Apr 1
- Unified Capabilities (UC) Network Specialist posted Feb 20
- JRSS Network Technician posted Oct 13
- Network Administrator (SATCOM) posted May 30
- Network Administrator (SATCOM) posted Mar 19
- Transport/IP (TRIP) Network Technician posted Feb 26
- Transport/IP (TRIP) Network Technician posted Jan 29
From the team and dates on C3EL's own job board.
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