Are you ready to revolutionize the way billions interact with technology? We invite you to join the distinguished Siri team at Apple, where we are pioneering the integration of advanced large language models into billions of devices worldwide. Our accomplished applied ML team, consisting of approximately 35 dedicated ML engineers and researchers, seeks a talented ML research scientist to spearhead the development of Siri’s next-generation experiences. Collaborate with some of the brightest minds across Apple’s centers in Cambridge, UK, and Cupertino, CA, as we challenge conventional limits and redefine the possibilities of AI globally. Join us on an inspiring journey where your expertise will be instrumental in shaping the next phase of digital interaction—an extraordinary opportunity awaits.

As a key member of our team, you'll spearhead transformative advancements for the next era of Siri through pioneering innovations. Focus on modeling and training large language models and agentic reasoning as you engage in every facet of AI development—from designing intricate multi-modal foundation models to refining decision-making processes and evaluations. Your role will span the entire exhilarating product life cycle, initiating with visionary ideation and culminating in the deployment of state-of-the-art models to billions of devices. We are on the lookout for an extraordinary individual with a distinguished track record in building large-scale language models to lead and invigorate this pioneering quest.