Call Manager Engineer; Onsite

This position is located in Largo, Florida and requires on‑site presence. Only U.S. citizens with an active Top Secret/SCI security clearance may apply.

• Configure, administer, and maintain Cisco Unified Communications Manager (CUCM) clusters for 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 the 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 and associated virtual appliances.
• Perform vulnerability remediation, security hardening, compliance validation, and support cybersecurity audits, inspections, and accreditation activities.
• Maintain secure communications environments in accordance with DoD, organizational, and cybersecurity requirements.
• Develop and maintain engineering diagrams, configuration standards, operational procedures, disaster recovery plans, and technical documentation.
• Create, document, and defend system change requests while ensuring configuration management compliance.
• Conduct root cause analysis, incident response activities, and corrective actions to improve system reliability and performance.
• Collaborate with cybersecurity, network, infrastructure, and business stakeholders to implement and support enterprise communication services.
• Gather, analyze, and report system performance metrics to support operational readiness, capacity planning, and continuous improvement initiatives.
• Provide technical guidance and mentorship to junior engineers and support personnel.
• Contribute to strategic modernization efforts and the design, architecture, and enhancement of enterprise voice and collaboration platforms.

• Strong understanding and knowledge of computer, network, and security systems.
• Good interpersonal and communication skills.
• Strong analytical, critical thinking, and problem‑solving skills.
• Ability to work well independently under limited oversight, be self‑directed, and prioritize work.
• Active and transferable Top Secret U.S. government‑issued security clearance with SCI eligibility required before start date.
• Must be able to attain and maintain a DoD 8570 IAT Level II certification (Security+ or CISSP preferred).
• Typically requires a degree in Science, Technology, Engineering or Mathematics (STEM) and a minimum of 5 years prior relevant experience or an advanced degree in a related field and a minimum of 3 years of experience.

• Experience with Juniper SRX, EX series routers and switches.
• Experience deploying security solutions for DoD networks.
• Experience with multi‑platforms such as Windows, UNIX, LINUX.
• Understanding of network engineering fundamentals, including OSI layers, IP addressing, sub‑netting, TCP/IP stack, VLANs, DHCP, etc.
• Willingness to learn new technologies and applications as required.

• Medical, dental, and vision insurance.
• Three weeks of vacation for newly hired…