As a Product Design Engineer at APPLE INC, you will conceptualize, design, develop, and bring into production products that redefine the mobile experience. Your responsibilities will include designing, engineering, and validating concepts using 3D CAD tools, leading the end-to-end design and engineering integration of complex sub-systems within the iPhone, and collaborating with cross-functional teams. You will work with overseas manufacturers, analyze structural and functional robustness, resolve design issues, and utilize material engineering principles. You will also conduct failure analysis, develop innovative analysis tools, and travel internationally. The role requires a demonstrated knowledge of plastics and metal part design within mass production.