Senior Cisco Collaboration & Voice Engineer at Lifted

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About The Role

Serve as the primary Tier 3 technical subject-matter expert for Cisco CUCM, CUBE, SIP, voice gateways, carrier routing, and voice resiliency during the finalist technical interview
Execute required NDA documentation and review the RFP, technical specifications, submitted solution, interview guide, support model, and assigned technical scenarios
Attend the finalist technical interview onsite in Florida and participate in live technical discussions involving enterprise voice and collaboration technologies
Participate in major-incident scenarios and clearly explain service-impact validation, fault isolation, voice and contact-center dependencies, vendor/TAC coordination, restoration procedures, and proof of recovery
Lead the voice and collaboration portion of disaster-recovery scenarios, including A-side to B-side failover and full-data-center-loss recovery
Support CUCM, gateway, CUBE, and SIP recovery activities, including Webex Contact Center continuity, carrier number redirects, validation, rollback, and failback procedures
Participate in CAB and change-review exercises and clearly communicate implementation steps, technical dependencies, testing requirements, rollback triggers, and post-change validation
Provide sanitized examples of personally handled CUCM, CUBE, SIP, Cisco TAC, and enterprise-carrier incidents
Support certificate and TLS troubleshooting when Cisco Collaboration components are involved
Provide Tier 3 support for CUCM device and trunk registration, dial plans, route and translation patterns, call setup and teardown, media resources, CDR/CMR, RTMT analysis, and contact-center integrations
Provide advanced CUBE, SIP, and voice-gateway troubleshooting, including dial peers, digit manipulation, SIP signaling, TLS, codec and media negotiation, one-way/no-audio issues, trunk instability, and call-flow problems
Analyze SIP traces, packet captures, CUBE debugs, CUCM logs, and media-path evidence to isolate complex technical issues and identify root causes
Coordinate troubleshooting and resolution across Cisco, enterprise carriers, contact-center teams, and other technology vendors
Support PSTN, DID, toll-free, routing, failover, and emergency-redirection issues in coordination with AT&T or comparable enterprise carriers
Maintain and validate carrier failover, rollback, and failback procedures
Support Webex Contact Center continuity and integration use cases, including PSTN connectivity, entry points and queues, agent operationalization, APIs and integration boundaries, monitoring, and fallback processes
Participate in P1 incident bridges, Cisco TAC cases, disaster-recovery tests, approved production changes, patch and vulnerability activities, and daily system health checks
Maintain accurate ServiceNow records, SolarWinds alert reviews, technical runbooks, incident documentation, and root-cause analysis (RCA) documentation
Collaborate with client Tier 1 and Tier 2 teams while providing advanced Tier 3 engineering and complex fault isolation
Maintain a proactive approach to service restoration, technical documentation, operational readiness, and continuous improvement
6+ years of hands-on Cisco Unified Communications and Collaboration engineering experience in enterprise production environments.
Strong hands-on expertise with Cisco CUCM, CUBE, SIP, Cisco voice gateways, enterprise PSTN connectivity, dial plans, route and translation patterns, dial peers, and carrier interoperability.
Demonstrated experience troubleshooting SIP signaling, call setup failures, one-way/no-audio conditions, codec and media issues, trunk instability, digit manipulation, and voice-quality problems.
Strong ability to analyze SIP traces, packet captures, CUBE debugs, CUCM logs, and other technical evidence to isolate root cause.
Experience supporting redundant and high-availability voice environments, CUCM/CUBE/gateway failover, disaster recovery, and major-incident response.
Experience managing and escalating Cisco TAC cases and coordinating complex technical issues with enterprise telecom carriers.
Direct AT&T carrier experience is preferred but not required.
Working knowledge of PCCE/UCCE and CVP sufficient to troubleshoot end-to-end voice and contact-center call flows in collaboration with contact-center engineers.
Experience with certificates and TLS within Cisco Collaboration environments.
Experience with formal ITSM and change-management processes, including ServiceNow.
Strong understanding of implementation planning, technical dependencies, testing, rollback, validation, and failback procedures.
Experience supporting Webex Contact Center or similar enterprise contact-center continuity and integration environments is a plus.
Strong client-facing communication skills with the ability to clearly explain complex technical issues and defend technical decisions under pressure.
Strong problem-solving, troubleshooting, analytical, and incident-management skills.
Ability to participate effectively in P1 incident bridges and high-pressure production recovery situations.
Strong documentation skills, including runbooks, RCAs, implementation plans, validation procedures, and change records.
Currently located in Florida and able to attend the onsite finalist interview.
Ability to work remotely from within the United States for ongoing delivery if the contract is awarded.
Willingness and ability to support approved production changes, DR exercises, vendor escalations, and other managed-services requirements.