In cloud computing, Full Stack refers to the collection of technologies needed to complete a project. A Full Stack developer is someone who is comfortable working with both the front-end and back-end technologies. This means they can develop fully fledged platforms, handling projects that involve databases, building user-facing websites, or even work with clients during the planning phase of projects.

Full Stack works by encompassing all the layers of software development from the user interface to the server, network, and hosting environment. This includes front-end technologies (like HTML, CSS, and JavaScript), back-end technologies (like Python, Ruby, or PHP), databases, server, API, and version controlling systems.

Consider a cloud-based web application. A Full Stack developer would be able to work on the user interface, the application's interaction with the server and the server itself, and the database where the user data is stored.