DevOps (development and operations) is a software development methodology aimed at active interaction and integration of development specialists and information technology service specialists. It is based on the idea of the close interdependence of software development and operation and aims to help organizations quickly create and update software products and services.
It is often said that DevOps is not a role in the team, but the whole culture. More specifically - a culture of interaction between development and operation, where programmers understand how systems work and have system administration skills, and administrators understand design principles.