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AI Voice Designer

London💼 Full-time🗓 2026-05-05 → 2026-09-26

Core

Design, implement, and tune production-ready AI voices for European locales, translating brand requirements into natural-sounding audio for customer-facing agents.

Role type

Technical Voice Designer (Hands-on IC)

Builds

Production-quality AI voices for Sierra's platform

Domain

AI / Speech Synthesis / Audio Engineering

Deliverable

production ML models | product features

Required skills

Audio design, voice direction, DAW proficiency, speech synthesis/TTS knowledge, command-line tooling, customer partnership, contractor management

Preferred skills

Experience with voice cloning, sonic branding, AI coding agents

Technologies

Pro Tools, Logic, Ableton, Audition, iZotope RX, ElevenLabs, CLI tools, Git

Responsibilities

Develop and launch new voices for European markets; tune voices using platform tooling and code-level changes; direct and record voice talent; partner with customers to define voice specifications; manage a network of native language contractors; define voice quality metrics; inform the platform roadmap based on customer feedback

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