Inflection AI
Principal Research & Engineering, Realtime Voice AI
Palo Alto, California, United States · Principal
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About the role
- Voice is becoming the highest-stakes interface for AI, where quality depends on speed, naturalness, interruption handling, emotional nuance, and reliability in real-world conditions.
Responsibilities
- Utilize a 1,000 GPU cluster to support performance benchmarking and extensive experimentation.
- Determine build-vs-buy-vs-train strategies for core audio, speech, and realtime interaction components.
- Collaborate with infrastructure, product, design, and agentic AI teams to deploy voice agents for enterprise workflows.
- Develop evaluation systems measuring voice quality through metrics such as clarity, emotional appropriateness, interruption handling, task success, user preference, latency, and reliability, moving beyond standard WER.
- We are focused on building a positive, safe, inclusive and inspiring place to work.
- Support of country-specific visa needs for international employees living in the Bay Area
- Ability to lead senior technical talent while staying close to the code, architecture, and debugging work.
Requirements
- Experience leading or serving as a principal Research and Engineering contributor to realtime voice, speech, audio AI, or conversational AI systems in production.
- Experience with one or more of: streaming ASR, TTS, speech-to-speech systems, speech LLMs, audio tokenization, multimodal models, barge-in, low-latency inference, or realtime agents.
- Ability to define voice quality in terms of user and customer outcomes, not only offline model metrics.
- Experience designing or using evaluation systems that capture real user experience.
- Have a bachelor's degree or equivalent in a related field to the offered position requirements
Compensation
- For this role, Inflection AI estimates a starting annual base salary to fall within the range of $400,000 to $550,000, depending on a candidate's qualifications and level of experience.
Benefits
- Our benefits include:
- Robust medical, dental and vision options with employer contributions for HSA, FSA and DFSA
- Flexible Time Off, 10 paid holidays, 5 days sick leave
- Parental, Medical and Family care leave
- Generous cell-phone, wellness and office set up stipends
Company info
- What We're Looking For
Visa & Work Authorization
- Support of country-specific visa needs for international employees living in the Bay Area
This listing is sourced directly from Inflection AI's careers page and normalized into a canonical job model.