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Sr Specialist System Engineering (VoIP Call Flow Design. Cloud Architectures. (Nokia Cloudband, OCP))

AT&T | Bengaluru, India | Posted June 06, 2026

Position Overview

Job Description

:

Mobility Core and Network Services (MCANS) team is part of the Network CTO organization that oversees the global mobile and fixed network technology direction for AT&T, which includes the design of the company’s 5G and IMS infrastructure. 

This team is responsible for the architecture, design, certification, testing and delivery of advanced Mobility Core network functions and Network Services applications, including for IP multimedia systems and packet data, which are the future of Mobility services and experiences. The team contributes to the growth and development of end-to-end wireless network services across Consumer, Enterprise, Internet of Things (IOT), FirstNet and public sector products.

This position is part of a team that collaborates with client project teams in the development of Mobility Cloud platform delivery, CI/CD workflow automation. This is a very dynamic and exciting role that will allow for exposure to emerging ...

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