Different software deployment models
Cloud solutions can be deployed with different models. The way you decide to deploy your applications depends on the kind of team you work with. In companies where you have infrastructure engineers, you will probably find more people working with Infrastructure as a Service (IaaS).
On the other hand, in companies where IT is not the core business, you will find a bunch of Software as a Service (SaaS) systems. It is common for developers to decide to use the Platform as a Service (PaaS) option, or to go serverless, as they have no need to deliver infrastructures in this scenario.
As a software architect, you must cope with this environment and be sure that you are optimizing the cost and work factors, not only during the initial development of the solution but also during its maintenance. Also, as an architect, you must understand the needs of your system and work hard to connect those needs to best-in-class peripheral solutions to speed...