L4 UC Engineer

Role : L4 UC EngineerExp : 10+ YearsLocation : RemoteJD : - UC Architecture & Design : Deep understanding of Unified Communications Products like CUCM, CUC, IM & Presence, and Expressways. Deep knowledge of designing and troubleshooting clusters, inter-cluster trunks, and high availability configurations.- PSTN Trunking & Interoperability : Designing and troubleshooting SIP trunks, PRIs with carriers, including codec negotiation, SIP headers, PRIs, and call routing logic.- CUBE & Voice Gateway Configurations : Advanced IOS gateway setup (MGCP, H.323, SIP), dial peers, DSP resources, and survivability strategies.- Analog Devices : Understanding of Analog Devices such as Analog Gateways, Analog Phones, Fax Devices, DTMF & Dial-tone behavior, FXS / FXO Ports.- Call Flow Engineering : End-to-end call flow design across multiple platforms (CUCM, Unity, UCCX / UCCE, Expressway).- Virtualization & Cloud Migration : Deploying IPT solutions on UCS platforms or migrating to cloud-based collaboration (Webex Calling, Cisco HCS).Strategic & Operational Skills- Capacity Planning & Scalability : Forecasting growth, designing scalable dial plans, and managing bandwidth across WAN links.- Disaster Recovery & Redundancy : Architecting failover strategies, backup systems, and DR testing protocols.- Integration Expertise : Connecting IPT with third-party systems (CRM, ERP, SIP endpoints, SBCs).- Change Control & Governance : Leading change advisory boards, documenting impact assessments, and enforcing configuration standards.