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AI Engineer, Voice Designer
Dialpad
Vancouver, CAN
Full Time
Mid
Hybrid
5 days ago
PythonPyTorchText to Speech (TTS)NVIDIA NeMoESPnetCoqui
Free
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PythonPyTorchText to Speech (TTS)
About the Role
Dialpad is hiring an AI Engineer, Voice Designer to own the back-end implementation and linguistic optimization of the Text-to-Speech (TTS) layer for next-generation AI voice agents.
Key Skills for This Role
PythonPyTorchText to Speech (TTS)NVIDIA NeMoESPnetCoqui
Responsibilities
- Own the integration and optimization of multiple TTS vendor APIs while leading research and prototyping for open source or in house TTS architectures
- Apply expertise in phonetics and sociolinguistics to ensure TTS input is formatted for maximum naturalness, including SSML orchestration and pronunciation handling
- Craft context specific utterances to optimize turn handling and build caller trust during agentic 'thought' processes
- Design and manage LLM and TTS prompts and parameters to define and refine agent personalities across different industry verticals
- Architect the logic to expose voice attributes (speed, pitch, tone, style) to the product UI, allowing customers to customize their agent’s voice profile
- Partner with ASR and Audio AI engineers to ensure end to end voice quality and minimize latency in the ASR → LLM → TTS pipeline
Requirements
- Strong Python programming skills and experience with deep learning frameworks (e.g., PyTorch)
- 3+ years of experience in Speech Synthesis (TTS) or Voice Design
- Hands on experience with major TTS APIs such as ElevenLabs, Rime, and Cartesia
- Degree in Computational Linguistics, Computer Science, or AI/ML with deep understanding of phonetics, prosody, and syntax
- Proven experience crafting and evaluating LLM prompts (system, few shot) and managing structured prompt templates
- Experience building production grade APIs and integrating multi vendor services in a cloud environment (GCP preferred)
- Knowledge of speech quality metrics (MOS, intelligibility, latency) and ability to design rigorous A/B tests
Full Job Posting
About Dialpad
- Dialpad is the AI native business communications platform, unifying calling, messaging, meetings, and contact center on a single platform powered by AI.
- More than 70,000 companies globally rely on Dialpad for real time, AI driven insights.
- Dialpad is leading the shift to Agentic AI with the DAART initiative.
Your Role
- As an AI Engineer: Voice Designer, you’ll own the back end implementation and linguistic optimization of the TTS layer for next generation AI voice agents.
- You will work within the Speech Team, bridging core speech science and product engineering.
- This position reports to the Senior Manager, AI Speech, based in Vancouver, hybrid schedule.
What You’ll Do
- TTS Backend Implementation: Own integration and optimization of multiple TTS vendor APIs; lead research and prototyping for open source or in house TTS architectures.
- Linguistic Optimization: Apply phonetics and sociolinguistics expertise to ensure TTS input is formatted for naturalness, including SSML orchestration and pronunciation handling.
- Conversational Turn Design: Craft context specific utterances to optimize turn handling and build caller trust during agentic 'thought' processes.
- Prompt & Persona Management: Design and manage LLM and TTS prompts and parameters to define and refine agent personalities across verticals.
- UI Parameter Exposure: Architect logic to expose voice attributes (speed, pitch, tone, style) to the product UI for customer customization.
- Cross Functional R&D: Partner with ASR and Audio AI engineers to ensure end to end voice quality and minimize latency in the ASR → LLM → TTS pipeline.
Skills You’ll Bring
- Strong Python programming skills and experience with deep learning frameworks (e.g., PyTorch).
- 3+ years of experience in Speech Synthesis (TTS) or Voice Design, including hands on work with frameworks like NVIDIA NeMo, ESPnet, or Coqui, and major TTS APIs such as ElevenLabs, Rime, and Cartesia.
- Degree in Computational Linguistics, Computer Science, or AI/ML with deep understanding of phonetics, prosody, and syntax.
- Proven experience crafting and evaluating LLM prompts (system, few shot) and managing structured prompt templates.
- Experience building production grade APIs and integrating multi vendor services in a cloud environment (GCP preferred).
- Knowledge of speech quality metrics (MOS, intelligibility, latency) and ability to design rigorous A/B tests for voice personas.
Salary Range
- British Columbia, Canada target base salary range: CAD 161,500 CAD 191,500 per year.
Why Join Dialpad
- Work at the center of the AI transformation in business communications.
- Build and ship agentic AI products redefining how companies operate.
- Competitive salary, comprehensive benefits, and real opportunities for growth.
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