Apple's Robustness and Safety AI (RSAI) team is seeking a Senior Machine Learning Software Engineer to join their System Intelligent and Machine Learning (SIML) group. This role focuses on implementing cutting-edge ML technologies with an emphasis on AI safety and user protection. The position involves working on foundational machine learning technologies that power various Apple Intelligence experiences across 1.5B Apple products globally. The ideal candidate will collaborate with ML researchers, hardware teams, and design teams to develop efficient, production-ready solutions that run across multiple Apple platforms. The role requires expertise in software engineering, API design, and the ability to translate complex ML algorithms into production code. The team's work directly impacts major features like Writing Tools, Image Playground, Genmoji, and Apple Intelligence in Photos. This position offers competitive compensation, comprehensive benefits, and the opportunity to work on innovative AI solutions that prioritize user safety and experience. The role combines technical leadership with cross-functional collaboration, making it ideal for someone passionate about both AI technology and its responsible implementation.