Principal Research & Engineering, Realtime Voice AI

About the Company

Inflection AI is a Public Benefit Corporation empowering people with human-centered, emotionally intelligent AI. Inflection AI created Pi, the world’s first emotionally intelligent AI, to help people work through decisions, emotions, and challenges.

Responsibilities

• Establish the technical roadmap for Inflection's realtime Voice AI stack, including streaming ASR, TTS, speech-to-speech, and speech LLMs
• Utilize a 1,000 GPU cluster for performance benchmarking and experimentation
• Determine build-vs-buy-vs-train strategies for core audio and realtime interaction components
• Direct research and engineering efforts focused on speech quality, naturalness, and emotional fit
• Collaborate with infrastructure, product, and design teams to deploy voice agents for enterprise workflows
• Develop evaluation systems measuring voice quality, latency, and reliability
• Mentor and coach a team specializing in speech research and audio infrastructure

Requirements

• Experience leading or serving as a principal contributor to realtime voice, speech, or conversational AI systems in production
• Expertise in streaming ASR, TTS, speech-to-speech, speech LLMs, or low-latency inference
• Strong technical judgment across speech modeling and production systems
• Experience designing evaluation systems that capture real user experience
• Ability to lead senior technical talent while remaining hands-on with code and architecture
• Bachelor’s degree or equivalent in a related field

Benefits

• Robust medical, dental, and vision options
• 401k matching program
• Flexible Time Off, 10 paid holidays, and 5 days sick leave
• Parental, Medical, and Family care leave
• Generous cell-phone, wellness, and office setup stipends
• Support for country-specific visa needs for international employees in the Bay Area