Job Title: Voice Signalling Designer - Ericsson Node and Nokia SDM
Location: Reading
Start Date: End of March
Job Type: Contract 6 months + 6 months likely to extend
Iam working with a leading telecommunications provider, delivering reliable and high-speed connectivity solutions to both businesses and consumers. Its services include mobile, broadband, and network infrastructure, supporting seamless communication in an increasingly digital world. With a strong focus on innovation and customer experience, the organisation enables clients to stay connected, productive, and future-ready.
We are seeking an experienced Mobile Core Signalling Designer for a major Voice Core and Subscriber Data Management (SDM) transformation programme Reading.
Key Responsibilities:
Design and produce HLDs/LLDs for Ericsson and Nokia signalling platforms
Lead migrations of Ericsson DSC, HLR/HSS, and IPSTP nodes to cloud-based or virtualised environments
Design subscriber data migration solutions from Ericsson HLR/HSS to Nokia SDM
Collaborate on Nokia SDM CNF transformation (VNF → private cloud)
Integrate and consolidate signalling nodes while ensuring 5G compliance
Essential Skills & Experience:
Ericsson Platforms: DSC, IPSTP, HLR, HSS - hands-on design & migration experience required
Nokia Platforms: SDM, VNF/CNF deployment, subscriber migration experience required
Strong signalling knowledge, including Diameter routing & protocols
Proven ability to produce high-quality HLD/LLD artefacts independently
Core network design and traffic migration/integration experience
Disclaimer
Notwithstanding any guidelines given to level of experience sought, we will consider candidates from outside this range if they can demonstrate the necessary competencies.
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