We are looking for engineers, architects with a high level of technical skill and experience crafting, building and running diverse product lines and types of infrastructure at scale. You will be involved in designing API specifications and protocols to tackle novel problems and working closely with internal engineering teams, server and iOS on feature definition and development.You will also work with internal technical document writer to develop rich developer documentation for new Wallet features.You will develop and implement Web Services/REST APIs defined in Apple Pay server & Wallet specifications and work closely with the engineers, architects as well as executives at 3rd party companies that design, build and run their services. In this role you will be the voice of the future 3rd parties, as new products and services are invented and architected inside of Apple Pay and you will cultivate successful engagements to establish a pipeline of well qualified and capable 3rd parties for the rest of the engineering function to integrate, test and launch with, without delay.