Machine Learning Engineer • Senior

Who you are

You have a strong background in machine learning and have spent several years managing technical teams through ambiguity and change — your expertise in language models and agentic systems allows you to lead effectively in complex environments. You are passionate about experimenting with and optimizing prompts, always seeking to improve model performance and user experience. Your strong cross-functional collaboration skills enable you to work seamlessly with various teams, ensuring that the best outcomes are achieved for customers. You have a proven ability to translate leadership goals into actionable tasks, guiding your team towards success.

Desirable

A Bachelor's degree in Computer Science or equivalent work experience is preferred, as it provides a solid foundation for the technical challenges you will face. Familiarity with tools and workflow development for model improvement will be beneficial in this role, allowing you to implement effective strategies for enhancing model quality.

What you'll do

As the Engineering Leader of the Planner Modeling Team, you will play a crucial role in redefining the Siri experience — your leadership will guide the development of the core model that drives the agent’s behavior, determining when and how to call tools on behalf of users. You will collaborate with senior leaders and cross-functional partners, ensuring alignment on strategic directives and leveraging simulator-driven evaluations to measure and improve model quality. Engaging in benchmarking state-of-the-art internal and external models will be a key responsibility, as you perform failure analyses to understand common failure patterns and gain exposure to cutting-edge technologies and techniques.

You will work closely with teams building the agent’s toolbox, search capabilities, and partners in Response Generation and Internationalization — your role will require you to navigate complex technical discussions and drive collaborative efforts across these teams. Your insights will help shape the future of Siri, as you engage in high-level discussions about the direction of the technology and its applications.

What we offer

At Apple, we foster an inclusive and diverse work environment where every employee is valued. You will have the opportunity to work at the forefront of technology, contributing to projects that redefine user experiences. We encourage you to apply even if your experience doesn't match every requirement — your unique perspective could be the key to our success. Join us in shaping the future of Siri and making a meaningful impact on how users interact with technology.