jobs

Software Engineer - Voice Model

SpaceXAI’s mission is to create AI systems that can accurately understand the universe and aid humanity in its pursuit of knowledge. Our team is small, highly motivated, and focused on engineering excellence. This organization is for indivi

Company

xAI

Location

Palo Alto, CA

Status

Open

Posted

2026-03-16T20:39:18+00:00

xAI's Grok Voice Model team is hiring a software engineer to build voice AI, covering the full training pipeline. The work spans large-scale speech data curation, synthetic data generation and annotation, pre-training and post-training of speech-language models with supervised fine-tuning and reinforcement learning, and an evaluation framework using objective metrics, human preference studies and A/B testing. The posting asks for expert Python, Spark and Ray experience with large datasets, JAX or PyTorch model training, and distributed training and inference on Kubernetes. Base pay is $150,000–$450,000.