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IMS Core Signalling Designer

Job Posted: 12 days ago

Salary: £ 500 - 580 / Day
Job Type: Contract
Location: Reading, Berkshire

Expire in: 16 days

Job Description

Mobile/Voice/Core Signalling Designer

Reading - 2 days on-site, 3 days WFH
 £580 per day Inside IR35 - rate to umbrella
 Initial 6-month contract, view to extend

Overview

PCR Digital is working with a leading telecoms organisation who are undertaking a major Voice Core and Subscriber Data Management transformation programme.
 They are seeking an experienced Mobile Core Signalling Designer with strong Ericsson signalling platform expertise and Nokia SDM experience to support the design and delivery of critical core network evolution initiatives.
 This is a highly technical design-focused role, requiring hands-on experience producing high-level and low-level design documentation (HLD / LLD) and supporting complex core network migrations, integrations, and service deployments.

Key Responsibilities

Signalling Architecture & Migration

Produce High-Level and Low-Level Design documentation for core signalling platforms
Design and support migration of signalling nodes from bare metal to cloud-based environments
Work with Ericsson DSC Signalling Controller (5G compliant)
Support IPSTP consolidation and virtualisation initiatives
Design traffic migration strategies, new instance builds, and network integrationsSubscriber Data Management (SDM)

Support migration programmes retiring Ericsson HLR/HSS platforms
Design solutions to migrate subscriber profiles onto Nokia SDM
Understand and map subscriber data flows, service dependencies, and associated risksNokia SDM Transformation

Support the transition from VNF-based deployments on vendor virtualisation stacks
Contribute to the target architecture of CNF deployments on internal private cloud platforms
Work closely with Nokia vendor teams on solution design and migration approaches

Essential Skills & Experience

Ericsson Platforms

Ericsson DSC (Diameter Signalling Controller)
Ericsson IPSTP
Experience working with HLR and HSS platformsNokia Platforms

Nokia Subscriber Data Management (SDM) experience
Experience working with VNF and/or CNF architectures
Exposure to subscriber migration programmes (vendor-to-vendor or platform migrations)Core Network Expertise

Strong knowledge of mobile signalling protocols
Experience with Diameter routing and signalling systems
Proven core network design experience
Experience designing traffic migration and service integration solutions
Ability to independently produce detailed HLD and LLD documentation

Ideal Candidate

Strong technical signalling design experience within mobile core networks
Experience working in large-scale telecom network transformation programmes
Comfortable working independently and collaborating with vendors, engineering teams, and programme stakeholders

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