DevOps is the “agile version” of the system administrator, a professional willing to work with a collaborative method in tandem with other computer scientists. A DevOps is a technician who, thanks to small and incremental changes, allows the infrastructure to perform better in terms of data storage and their ease of exchange.
DevOps is an umbrella term indicating systems engineers, system administrators, operations staff, release engineers, DBAs, network engineers, security professionals and other professionals.
The “Dev” prefix is used to indicate all the people involved in the product development process (Product, QA). DevOps has strong affinities with the Agile and Lean approaches.