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Member of Technical Staff - Post Training, Applied (Audio)

San Francisco💼 Full-time🗓 2026-03-30 → 2026-09-26

Core

Own end-to-end post-training projects for LFM2.5-Audio, adapting frontier audio models for enterprise customers to enable voice-driven function calling and real-time on-device deployment.

Role type

Senior IC applied machine-learning engineer (audio post-training)

Builds

Production-ready audio models with function calling capabilities for enterprise customers

Domain

Generative AI, Audio Language Models, Enterprise Software

Deliverable

production ML models

Required skills

Post-training for language models (SFT, preference alignment, RL), Data generation and evaluation pipelines for LLM/audio models, Function calling and tool use training, Model adaptation and evaluation design

Preferred skills

Speech/audio language models (speech-to-speech, ASR, TTS), Customer-facing ML delivery, Alignment/RL techniques beyond SFT, On-device/low-latency inference constraints

Technologies

LFM2.5-Audio, Audio data pipelines, Function calling frameworks

Responsibilities

Translate customer requirements into post-training specifications, Design and build function calling capabilities for audio models, Execute data generation pipelines for speech-to-speech and text-to-text training, Run supervised fine-tuning and reinforcement learning workflows, Design task-specific evaluations for audio function calling

Seniority

Senior, hands-on IC

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