Lead architecture and design of enterprise voice and VoIP solutions across on-premise, hybrid, and cloud environments
Define and execute migration strategies from legacy PBX/Cisco UC platforms to Microsoft Teams Telephony
Architect SIP trunking solutions, including secure TLS/SRTP communications between enterprise platforms
Serve as the senior technical authority for voice call flows, signaling, and cross-platform interoperability
Design and implement Session Border Controller (SBC) architectures (Cisco CUBE, Oracle SBC, etc.)
Ensure secure voice architecture including certificates, encryption, firewall traversal, and compliance requirements
Integrate voice services across LAN/WAN, SD-WAN, and cloud network environments with proper QoS and prioritization
Perform capacity planning and traffic analysis to ensure scalability, resiliency, and performance
Provide Tier 3 escalation support for complex VoIP, SIP, and gateway issues
Develop architectural standards, roadmaps, and lifecycle strategies for enterprise voice services
Deliver executive-level technical briefings and mentor engineering teams

Bachelor’s degree in Engineering, Computer Science, or related field (Master’s preferred)
10–15+ years of experience in enterprise voice/VoIP engineering or architecture
Proven experience supporting large-scale telephony deployments and migrations, including Cisco to Microsoft Teams Telephony
VoIP Protocols & Standards: Expert-level understanding of SIP, RTP/RTCP, H.323, and codec technologies (G.711, G.729, Opus)
Networking Fundamentals: Strong knowledge of TCP/IP, VLANs, QoS, MPLS, SD-WAN, and routing protocols (BGP, OSPF) for voice traffic prioritization
Platforms & Vendors: Cisco Unified Communications Manager (CUCM) Cisco Unified Border Element (CUBE) / SBCs Microsoft Teams Telephony Experience with Avaya or similar enterprise voice platforms
SIP & Security: SIP trunk configuration (Cisco & Microsoft environments) TLS/SRTP implementation Certificate management and PKI Firewall traversal and rule implementation Strong troubleshooting skills using protocol analyzers (SIP traces, packet captures, call flow analysis)

Voice Engineering Architect

Key skills