Model Engineer, Mid-training

xAI is seeking a mid-level engineer to contribute to the development of advanced AI systems. This role involves scaling synthetic data, distilling model intelligence, and optimizing training processes. The position is ideal for individuals passionate about AI and driven by curiosity, offering a flat organizational structure and hands-on contribution.

• Scale synthetic coding data to trillions of tokens
• Distill intelligence of flagship models into flash models
• Optimize mid-training data mixtures for RL
• Engineer long-context data recipes
• Develop evaluation for mid-training checkpoints
• Expertise in ML and large model scaling