Mobile Voice Core Signalling Designer

Role Specification - Mobile Voice Core Signalling Designer

Role Purpose

The Mobile Voice Core Signalling Designer is responsible for designing and supporting signalling solutions across the mobile core voice network, ensuring designs are robust, scalable, secure, and aligned with business and customer requirements. Working within the Signalling Design team, the role provides technical leadership for signalling-related projects, produces high and low-level designs, and collaborates with internal stakeholders and vendors to support network evolution and service delivery.

Key Responsibilities

• Design signalling solutions for core voice network platforms, including IP STP, DSC (DRA/DEA), IMS, and Legacy voice core nodes.
• Produce high- and low-level design documentation, including capacity modelling and network impact assessments.
• Support the development of automated testing capabilities for 5G Standalone (5G SA) and Legacy core network platforms.
• Provide technical design guidance to project teams and ensure solutions meet performance, resilience, security, and fraud prevention requirements.
• Develop Statements of Requirements (SoRs), review supplier Statements of Compliance (SoCs), Statements of Work (SoWs), and vendor proposals.
• Assess the impact of network evolution initiatives and contribute to technology roadmaps covering hardware, software, capacity, an...