Telecommunications Obsolescence Lead

Telecommunications Obsolescence Lead - 12 month contract - Inside IR35 - Hybrid Working - Scotland/Northwest England/South England

Lorien are seeking a Telecommunications Obsolescence Lead to join our client and provide support on an estate obsolescence programme to address the withdrawal of their legacy PSTN/ISDN services across the UK and the ageing telephony platforms deployed throughout their infrastructure

Key responsibilities:

• Own and govern telephony obsolescence risk mitigation decisions across operational sites
• Define and approve acceptable telephony solutions (legacy, SIP/IP, hybrid or cloud) on a site‑by‑site basis
• Drive progressive verification of the telephony estate and maintain a prioritised site‑level risk view
• Act as the senior technical counterparty to carriers, integrators, and telephony vendors
• Challenge supplier proposals to ensure solutions are safe, operable, and proportionate
• Work closely with a Connectivity Delivery Manager to align sequencing, cutovers, and dependencies

Key experience:

• Senior background in enterprise or industrial telecommunications
• Proven PSTN/ISDN withdrawal, PBX retirement, or large‑scale voice transitions
• Strong knowledge of PBX platforms (e.g. Avaya, Mitel), SIP, SBCs, media gateways, and resilience
• Experience working in operational, safety‑critical, or regulated environments