Senior Applied Scientist, UI Control Models, Siri Agent Modeling

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401(k) match

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About this role

Senior Applied Scientist, UI Control Models, Siri Agent Modeling Cupertino, United States of America Join us at the forefront of redefining how people interact with their devices. On the Siri team we're solving the challenge of building and shipping powerful LLMs that shape the way millions of Apple customers get things done every day. As a Senior Applied Scientist, you will craft the future of UI Control by developing powerful yet compact LLMs that bring personalized, private, and low-latency experiences to users. This is a high-impact role for a hands-on applied scientist who thrives at the intersection of cutting-edge AI development and product delivery. In this role you'll drive the design, development and delivery of large language models that power the core of Siri. You will lead research and engineering efforts in model post-training techniques that create powerful UI control, tool calling and compelling conversational models that run within the constraints of mobile hardware. You'll collaborate closely with researchers, software engineers and product teams to move innovations from prototype to production. This includes identifying and applying post-training techniques, advancing model efficiency and contributing to the end-to-end model lifecycle process. This position emphasizes technical leadership through action, hands-on innovation and impact. You will be responsible for setting technical directions for the team. Our team values rapid iteration and delivering impactful results. The ideal candidate will have a passion for applied research, strong modeling expertise, good software engineering skills and a desire to get things done. Minimum Qualifications: Masters or PhD in

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