An APQP (Advanced Product Quality Planning) developer is responsible for managing and implementing quality planning protocols for new products. They work closely with project managers, engineers, and other stakeholders to ensure products meet quality standards, regulatory requirements, and customer expectations. Their tasks involve defining process steps, identifying potential risks, implementing preventive measures, and conducting validation tests. They also analyze data to assess the product's performance, aiming to continuously improve its quality. Furthermore, they contribute to establishing a control plan, training team members, and documenting all processes, ensuring a smooth transition from product development to production.