A Cloud Engineer – is, broadly defined, someone who creates, manages, operates, or configures systems running in the cloud. This could be a system administrator responsible for building base images, a software developer responsible for writing applications, a data scientist building machine learning models, a site reliability engineer responding to pages when things go awry, and more. In some organizations, all of those functions are handled by one single human; in others, hundreds of people may be in each one of those roles.