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Senior Software Engineer - Telephony

London, England, United Kingdom; Oxford, England, United Kingdom💼 Full-time🗓 2026-07-15 → 2026-10-01

Core

Design, ship, and maintain telecommunication services and capture platforms for audio/video streams in a multi-cloud environment.

Role type

Senior Software Engineer (Telephony/VoIP)

Builds

Secure, resilient, and scalable platforms for conversation capture and intelligence

Domain

Telecommunications / VoIP / Cloud Infrastructure

Deliverable

production ML models

Required skills

C/C++, SIP protocol, Asterisk, Freeswitch, OpenSIPs, Linux administration, IP networking, SBC configuration

Preferred skills

Docker, Kubernetes, Terraform, SIPp, media codecs (PCMU, PCMA, WAV)

Responsibilities

Design and maintain telecommunication services, support production systems, collaborate across engineering and product teams

Seniority

Senior, hands-on IC

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