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Sr. Engineer, Cyber Call Manager - CUCM; Onsite - Largo, FL) TS​/SCI clearance required

Job in Tallahassee, Leon County, Florida, 32301, USA
Listing for: Raytheon
Full Time position
Listed on 2026-10-12
Job specializations:
  • IT/Tech
    Systems Engineer
  • Engineering
    Systems Engineer
Job Description & How to Apply Below
Position: Sr. Engineer, Cyber Call Manager - CUCM (Onsite - Largo, FL) TS/SCI clearance required
Job d:
Posted 11 Days Ago

Start Date:

Location:

US-FL-LARGO-382SS ~ 7887 Bryan Dairy Rd. ~ BLDG 100

Country:
United States of America Time Type:
Full time

Date Posted:

Country:

United States of America

Location:

US-FL-LARGO-382SS ~ 7887 Bryan Dairy Rd. ~ BLDG 100

Position Role Type:

Onsite

U.S. Citizen, U.S. Person, or Immigration Status Requirements:

Active and transferable U.S. government issued security clearance is required prior to start date.​ U.S. citizenship is required, as only U.S. citizens are eligible for a security clearance​

Security Clearance Type: TS/SCI - Current

Security Clearance Status:
Active and existing security clearance required on day 1

Raytheon Company, Managed by Collins Aerospace At RTX, the world's largest aerospace and defense company, 185,000 great minds are united by purpose and inspired to make a difference solving the world’s most complex problems. With our three market leading businesses, world-class operations and investments in research and development, we offer capabilities and opportunity no one else can. Together, we push the boundaries of known science and find new ways to connect and protect our world.

Collins Aerospace is a leader in technologically advanced, intelligent solutions that help redefine the aerospace and defense industry. With a comprehensive portfolio and deep technical expertise, we help customers meet the demands of the global market. Join us and help shape the future of aerospace and defense.

The organization is seeking a Senior Cisco Unified Communications Engineer to design, administer, and sustain enterprise and classified voice and collaboration environments, with primary responsibility for Cisco CUCM, Unity Connection, VoIP infrastructure, voice gateways, SIP, conferencing, and associated collaboration platforms. The role will provide Tier III technical leadership across system engineering, troubleshooting, upgrades, modernization, and lifecycle management while ensuring DISA STIG compliance, cybersecurity hardening, configuration management, and accreditation requirements are met.

This role will be worked onsite in Largo, FL and requires an active TS/SCI clearance. Relocation assistance is available.

What You Will Do:

Configure, administer, and maintain Cisco Unified Communications Manager (CUCM) clusters supporting enterprise and classified environments

Manage and maintain Cisco Unity Connection voicemail systems, including user provisioning, call handlers, automated attendants, and voicemail integrations

Configure and support dial plans, route patterns, route groups, route lists, SIP trunks, device pools, partitions, and calling search spaces

Administer and troubleshoot voice gateways, session border controllers, and VoIP infrastructure.

Provide Tier III technical support, troubleshooting complex voice, call routing, registration, signaling, and voice quality issues

Design, implement, and maintain hunt pilots, hunt lists, line groups, call queuing, and call coverage solutions to optimize call distribution and operational workflows

Configure, manage, and support Meet-Me conferencing services, conference bridge resources, and collaboration platforms

Plan, coordinate, and execute CUCM and Unity Connection upgrades, patches, and lifecycle management activities

Develop upgrade runbooks, rollback procedures, testing plans, and maintenance schedules to ensure successful system implementations

Deploy, configure, and integrate Uni Fi FX solutions within enterprise communications environment.

Support migration planning, testing, validation, and production cutover activities for voice and collaboration modernization initiatives

Implement and maintain DISA Security Technical Implementation Guide (STIG) compliance for Cisco Unified Communications platforms…
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