Research Engineer, Voice

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

• Research, develop, and optimize neural models for voice and audio including TTS, ASR, and spoken dialogue systems
• Build and maintain production-grade training and inference pipelines with focus on latency and scalability
• Run end-to-end experiments including data curation, model architecture design, and evaluation
• Collaborate with ML engineers and product teams to integrate voice models into Pi’s conversational stack
• Explore advances in neural audio codecs, diffusion-based synthesis, and multimodal foundation models
• Develop robust evaluation frameworks using perceptual metrics and automated benchmarks

Requirements

• 2-5 years of research or engineering experience in audio, speech, or multimodal ML
• Strong proficiency in PyTorch and experience training large-scale models on GPU clusters
• Solid understanding of audio fundamentals including spectrograms, mel features, and vocoders
• Ability to move research from prototype to production
• Familiarity with generative architectures like diffusion models or autoregressive codecs
• Bachelor’s degree in Computer Science, Electrical Engineering, Linguistics, or related field; MS or PhD preferred

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
• Cell-phone, wellness, and office setup stipends
• Visa support for international employees in the Bay Area