Join Apple's innovative engineering team creating next-generation touch interfaces for iconic products like iPad, Pencil, iPhone, and Watch. We're seeking a skilled signal processing or machine learning engineer with strong C/C++ implementation capabilities to work on groundbreaking projects. The role combines hardware, software, and UI integration, requiring expertise in algorithm development, data analysis, and user experience design. You'll be part of a diverse team with backgrounds in signal processing, machine learning, and human factors, shipping products that impact millions of users annually. The position offers comprehensive benefits, competitive compensation ($143,100-$264,200), and the opportunity to work on cutting-edge technology at Apple's Cupertino location. This key role involves early product lifecycle participation, algorithm tuning, feature implementation, and production support, making it perfect for those passionate about creating innovative user interfaces.