In this role, you will conceptualize, design, and develop core algorithms that power our buy- flows and personalize the experience across the Apple Online Store. This includes developing production algorithms for search, recommendations and personalization, running offline experiments and building online A/B tests to run in production systems. In addition, you will lead and architect end-2-end complex systems in the field of Big data, Semantic search, Content management and Scalable Services with cross-functional impact. You will provide mentorship and leadership within division and influence beyond your own project to bring innovation and state-of-the art solutions.To be successful, you need a strong machine learning background, proven software development skills, a love of learning, and to collaborate well in multi-disciplinary teams. You will need to exhibit strong communication and leadership skills, an ability to set priorities, and an execution focus in a multifaceted environment. The team responsibilities include: model development and deployment on-device and web, developing back-end data pipelines, and producing automation processes for machine learning tasks. You will closely collaborate with other engineering teams (including Hardware, QA, Infrastructure) to ensure the solutions are meeting the highest quality standards.