CareerPlan

Sr. Model Engineer, Voice

Palo Alto, CAFull-time$220k–$357k2026-11-07 → 2026-11-10

Core

Design, build, and run software systems for Grok Voice, delivering natural, low-latency, multilingual spoken interactions across devices in real time.

Role type

Senior IC machine-learning engineer (voice)

Builds

Grok Voice model and its production deployment

Domain

AI / Voice technology / Distributed systems

Deliverable

production ML models

Required skills

Python, PyTorch, JAX, Rust, C++, distributed data pipelines, distributed training infrastructure, automated evaluation systems, system profiling and optimization

Preferred skills

Kubernetes, Spark, Ray, A/B experimentation pipelines

Technologies

JAX, PyTorch, Kubernetes, Spark, Ray

Responsibilities

Design and maintain large-scale distributed data pipelines for audio ingestion and annotation; Build and optimize distributed training infrastructure for speech-language models; Build automated evaluation and testing systems for accuracy, latency, and performance; Integrate voice models into production applications and own deployment from prototype to global scale; Profile and optimize system performance across training and inference

Seniority

Senior, hands-on IC