Led development of the systems architecture for Optical Core networks and provided technical support for AT&T’s cloud access networks.• Delivered systems architecture to enable the Whitebox Optical Core network that resulted in $57 million savings in operating expenses. Documented requirements for 60+ systems.• Provided technical support to internal customers using AT&T’s infrastructure to access Azure and AWS cloud services.• Led the development of the systems architecture for SDN-enabled Optical Core network that provided real-time provisioning and core network failure restoration.• Provided end-to-end systems engineering for SDN/NFV projects in addition to regular job responsibilities.

Provided network and systems architecture for mobility core infrastructure and mobility services.• Received patent award for developing Mobility Device Switch for IMS services.• Developed network/systems architecture and collaborated with equipment vendor to roll out Network-Based Fixed/Mobile Convergence service.• Created OSS/BSS requirements for the AT&T IMS Mobility Core Virtual Network Functions (VNFs).

Lead architect for numerous VoIP service development efforts. Translated user business requirements into OSS/BSS design requirements for these services.• Received Vice President Excellence Award for VoIP Acceleration support. Led over 10 projects that delivered $160 million in new annual revenue for AT&T.• Led the systems architecture development for AT&T’s inbound (Toll Free) and outbound Business VoIP services. Documented requirements for 70+ systems.• Developed the OSS/BSS architecture to migrate the 4ESS network to a VoIP-based infrastructure resulting in savings of over $200 million.

Developed systems engineering design requirements for the development and rollout of AVPN (AT&T Virtual Private Network), AT&T’s flagship MPLS-VPN service. • Created systems requirements for 80+ systems and all functional domains including Sales, Service Delivery, Service Assurance and Billing.• Translated user business requirements into detailed systems design requirements for OSS/BSS supporting AT&T IP and Managed Router services.