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Senior Research Scientist

San Francisco💼 Full-time💰 $400,000–$400,000🗓 2026-04-30 → 2026-09-26

Core

Post-training large speech models to handle natural, messy human conversations by curating data, fine-tuning, and building evaluation infrastructure.

Role type

Senior Research Scientist (Speech AI)

Builds

Large-scale speech models for natural conversation

Domain

Voice AI / Generative AI

Deliverable

production ML models

Required skills

PhD in ML, training large speech models (ASR/TTS/speech-to-speech), post-training and SFT, data curation, building evaluation workflows

Preferred skills

strong publications record, experience with hallucination reduction and instruction-following optimization

Technologies

ASR, TTS, speech-to-speech

Responsibilities

Source, clean, and structure data for large speech models; perform supervised fine-tuning of pre-trained models; build automated and human-in-the-loop evaluation workflows; drive improvements in hallucination rates, instruction-following, and generalisation

Seniority

Senior, hands-on IC

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