D. in Computer Science or related subject area Proven ability to build & scale Search & Conversational systems, applying 7+ years of hand-on experience across the full product stack - including query understanding, semantic retrieval, multi-stage ranking, indexing, intent classification, and context-aware generation. The ASE Search team is a vital part of Apple ecosystem, powering search for App Store, Apple Music, Apple TV, Podcasts, Books, iTunes and more, on a wide set of platforms such as iOS, macOS, tvOS, watchOS, Safari, and 3rd party devices.