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Voice Engineer

Crewe, England, gb💼 Full-time🗓 2026-10-06 → 2026-10-07

Core

Design, implement, support, and optimize enterprise voice and telephony platforms to ensure resilient, secure, and high-performing voice services. (via careerplan.io/jobs/744000153809689-voice-engineer-at-radius-limited)

Role type

Senior IC Voice Engineer

Builds

Enterprise voice and unified communications platforms, SIP trunks, and contact centre solutions

Domain

Telecommunications / VoIP Infrastructure

Required skills

SIP signaling, VoIP technologies, Session Border Controllers (SBCs), call routing, carrier connectivity, QoS, TCP/IP, DNS, DHCP, VLANs, firewalls, root cause analysis, telephony migrations

Preferred skills

Microsoft Teams phone (Direct Routing/Operator Connect), cloud telephony platforms, contact centre solutions, call recording and reporting, disaster recovery planning

Technologies

Five9, SIP, RTP, TCP/IP, DNS, DHCP, VLANs, QoS, Firewalls

Responsibilities

Design, deploy, and maintain enterprise voice platforms; Manage SIP trunks, SBCs, and dial plans; Diagnose SIP signaling and media flow issues; Work with telecom providers to resolve carrier issues; Perform root cause analysis and implement preventative measures; Maintain technical documentation and voice engineering standards; Support audit, compliance, and security requirements.

Seniority

Senior, hands-on IC