Senior Machine Learning Engineer - Large Language Models (LLMs), Siri Planner Team

As a Senior Machine Learning Engineer, you will lead initiatives to significantly advance Siri’s natural language understanding and planning capabilities using innovative LLM technologies. YOUR CORE RESPONSIBILITIES WILL INCLUDE: • Developing innovative systems for synthetic training data generation and implementing strategies for the continuous optimization of model performance. • Designing and implementing agentic workflows and RAG systems to enhance Siri’s capabilities. • Optimizing model performance for tool calling and reasoning tasks. • Actively staying at the forefront of academic and industry research in LLMs, NLP, and agentic systems, and translating novel insights into practical solutions. • Collaborating closely with a multidisciplinary team of researchers, software engineers, and product designers to seamlessly integrate AI innovations into the Siri user experience.