Voice Expert

Cresta

3d

About The Position

As a Voice Expert, you will shape and deliver world-class voice experiences for Cresta’s AI Agents, defining what great sounds like in real end user interactions. Working directly with customer executives—often at Fortune 500 companies—you will articulate Cresta’s creative vision for voice and translate each customer’s brand, audience, and business goals into a distinctive, on-brand AI voice. Internally, you will partner closely with NLP Specialists, Conversation Designers, Product Managers, and GTM teams to evaluate voices at scale using both human judgment and AI, and establish best practices across industries and use cases. You will own the end-to-end creation of bespoke voices, leading voice actor sourcing, direction, recording, editing, engineering, and fine-tuning with TTS partners until the voice authentically represents the customer’s brand. Beyond the voice itself, you will help design natural, thoughtful conversational interactions to ensure every exchange feels intentional, engaging, and effective at driving business outcomes.

Requirements

• Voice Experience Mastery — The ability to define, evaluate, and craft what “great” sounds like. This includes prosody, pacing, emotional tone, turn-taking, and repair strategies that make AI conversations feel human and intentional—not mechanical. They know how to direct or tune voices until every moment feels natural, expressive, and brand-aligned.
• Brand & Persona Design — Skill in translating a company’s identity and values into a consistent brand voice. They can codify tone, timbre, rhythm, and emotional nuance into style guides and voice recordings that make the AI sound distinct, trustworthy, and alive across every interaction.
• Product & Creative Leadership — The vision and drive to connect user experience, technology, and brand goals into a cohesive roadmap. This person partners across design, product, and engineering, sets measurable quality bars, and ensures that improvements to voice experience actually move core business metrics and customer perception.

Nice To Haves

• Basic Fluency in Speech Technology & Evaluation — Solid working knowledge of ASR, TTS, and real-time interaction systems—enough to collaborate with engineers, read metrics like MOS, latency, and WER, and make informed tradeoffs.
• Audio Editing – Working experience with audio editing (e.g., podcast, music, movie) and sound engineering.

Responsibilities

• Define and champion the creative vision for the voice experience of Cresta’s AI Agents, establishing Cresta’s credibility and thought leadership in voice experience design.
• Collaborate with Cresta customers (client facing role!) to co-create a "voice brand" specific to each customer’s unique business requirements/needs. Lead customer-facing workshops to translate brand voice requirements into specific voice selections or professionally cloned voices (PVC).
• Produce the complete end-to-end PVC process with Text-to-Speech (TTS) vendors, including voice actor sourcing, coaching/directing, recording, audio editing/engineering, and voice fine-tuning.
• Curate a diverse selection of voices to optimize for various industries and use cases and business categories.
• Develop and document voice experience best practices tailored to verticals, personas, and brands.
• Partner with Conversation Designers to design natural-sounding micro-interactions and define prompts for Large Language Models (LLMs) that optimize transcripts for TTS read-aloud quality.
• Continuously refine the evaluation criteria for voice experience in collaboration with NLP specialists, and evaluate voices from various vendors.

Benefits

• Comprehensive medical, dental, and vision coverage with plans to fit you and your family
• Flexible PTO to take the time you need, when you need it
• Paid parental leave for all new parents welcoming a new child
• Retirement savings plan to help you plan for the future
• Remote work setup budget to help you create a productive home office
• Monthly wellness and communication stipend to keep you connected and balanced
• In-office meal program and commuter benefits provided for onsite employees
• Offers Equity

What This Job Offers

• Job Type: Full-time
• Career Level: Mid Level
• Education Level: No Education Listed